# Downloadable IDF Tools

[中文]

The ESP-IDF build process relies on a number of tools: cross-compiler toolchains, CMake build system, and others.

Installing the tools using an OS-specific package manager (e.g., apt, yum, brew, etc.) is the preferred method, when the required version of the tool is available. This recommendation is reflected in the Get Started. For example, on Linux and macOS, it is recommended to install CMake using an OS package manager.

However, some of the tools are specific to ESP-IDF and are not available in OS package repositories. Furthermore, different ESP-IDF versions require different tool versions for proper operation. To solve these two problems, ESP-IDF provides a set of scripts that can download and install the correct tool versions and set up the environment accordingly.

The rest of the document refers to these downloadable tools simply as "tools". Other kinds of tools used in ESP-IDF are:

- Python scripts bundled with ESP-IDF such as `idf.py`

- Python packages installed from PyPI

The following sections explain the installation method and provide the list of tools installed on each platform.

Note

This document is provided for advanced users who need to customize their installation, users who wish to understand the installation process, and ESP-IDF developers.

If you are looking for instructions on how to install the tools, see Get Started.

## Tools Metadata File

The list of tools and tool versions required for each platform is located in tools/tools.json. The schema of this file is defined by tools/tools_schema.json.

This file is used by the tools/idf_tools.py script when installing the tools or setting up the environment variables.

## Tools Installation Directory

The `IDF_TOOLS_PATH` environment variable specifies the location where the tools are to be downloaded and installed. If not set, the default location will be `$HOME/.espressif` on Linux and macOS, and `%USER_PROFILE%\.espressif` on Windows.

Inside the `IDF_TOOLS_PATH` directory, the tools installation scripts create the following directories and files:

- `dist` — where the archives of the tools are downloaded.

- `tools` — where the tools are extracted. The tools are extracted into subdirectories: `tools/TOOL_NAME/VERSION/`. This arrangement allows different versions of tools to be installed side by side.

- `idf-env.json` — user install options, such as targets and features, are stored in this file. Targets are selected chip targets for which tools are installed and kept up-to-date. Features determine the Python package set which should be installed. These options will be discussed later.

- `python_env` — not related to the tools; virtual Python environments are installed in the sub-directories. Note that the Python environment directory can be placed elsewhere by setting the `IDF_PYTHON_ENV_PATH` environment variable.

  - `idf_version.txt` — located within each specific Python environment sub-directory under `python_env`, this file records the ESP-IDF version corresponding to that environment. The version is stored in a format like `5.3` to represent ESP-IDF version `v5.3`.

- `espidf.constraints.*.txt` — one constraint file for each ESP-IDF release containing Python package version requirements.

## GitHub Assets Mirror

Most of the tools downloaded by the tools installer are GitHub Release Assets, which are files attached to a software release on GitHub.

If GitHub downloads are inaccessible or slow to access, a GitHub assets mirror can be configured.

To use Espressif's download server, set the environment variable `IDF_GITHUB_ASSETS` to `dl.espressif.com/github_assets`, or `dl.espressif.cn/github_assets` for faster download in China. When the install process is downloading a tool from `github.com`, the URL will be rewritten to use this server instead.

Any mirror server can be used provided the URL matches the `github.com` download URL format. For any GitHub asset URL that the install process downloads, it will replace `https://github.com` with `https://${IDF_GITHUB_ASSETS}`.

Note

The Espressif download server currently does not mirror everything from GitHub, but only files attached as Assets to some releases, as well as source archives for some releases.

## `idf_tools.py` Script

The tools/idf_tools.py script bundled with ESP-IDF performs several functions:

- `install`: Download the tool into the `${IDF_TOOLS_PATH}/dist` directory and extract it into `${IDF_TOOLS_PATH}/tools/TOOL_NAME/VERSION`.

  The `install` command accepts the list of tools to install in the `TOOL_NAME` or `TOOL_NAME@VERSION` format. If `all` is given, all the tools, including required and optional ones, are installed. If no argument or `required` is given, only the required tools are installed.

- `download`: Similar to `install` but doesn't extract the tools. An optional `--platform` argument may be used to download the tools for the specific platform.

- `export`: Lists the environment variables that need to be set to use the installed tools. For most of the tools, setting the `PATH` environment variable is sufficient, but some tools require extra environment variables.

  The environment variables can be listed in either `shell` or `key-value` formats, which can be set using the `--format` parameter:

  - `export` optional parameters:

    - `--unset`: Creates a statement that unsets specific global variables and restores the environment to its state before calling `export.{sh/fish}`.

    - `--add_paths_extras`: Adds extra ESP-IDF-related paths of `$PATH` to `${IDF_TOOLS_PATH}/esp-idf.json`, which is used to remove global variables when the active ESP-IDF environment is deactivated. For example, while processing the `export.{sh/fish}` script, if new paths are added to the global variable `$PATH`, this option saves these new paths to the `${IDF_TOOLS_PATH}/esp-idf.json` file.

  - `shell`: Produces output suitable for evaluation in the shell. For example, produce the following output on Linux and macOS:

        export PATH="/home/user/.espressif/tools/tool/v1.0.0/bin:$PATH"

    Produce the following output on Windows:

        set "PATH=C:\Users\user\.espressif\tools\v1.0.0\bin;%PATH%"

    Note

    Exporting environment variables in Powershell format is not supported at the moment. `key-value` format may be used instead.

    The output of this command may be used to update the environment variables if the shell supports it. For example

        eval $($IDF_PATH/tools/idf_tools.py export)

  - `key-value`: Produces output in the `VARIABLE=VALUE` format that is suitable for parsing by other scripts

        PATH=/home/user/.espressif/tools/tool/v1.0.0:$PATH

    Note that the script consuming this output has to perform expansion of `$VAR` or `%VAR%` patterns found in the output.

- `list`: Lists the known versions of the tools, and indicates which ones are installed.

  The following option is available to customize the output.

  - `--outdated`: Lists only outdated versions of tools installed in `IDF_TOOLS_PATH`.

- `check`: For each tool, checks whether the tool is available in the system path and in `IDF_TOOLS_PATH`.

- `install-python-env`: Creates a Python virtual environment in the `${IDF_TOOLS_PATH}/python_env` directory or directly in the directory set by the `IDF_PYTHON_ENV_PATH` environment variable, and installs the required Python packages there. If the Python virtual environment already exists, packages inside are updated to their latest versions with respect to the `espidf.constraints.*.txt` file.

  - An optional `--features` argument allows one to specify a comma-separated list of features to be added or removed.

    1. A feature that begins with `-` will be removed, and features with `+` or without any sign will be added. Example syntax for removing feature `XY` is `--features=-XY`, and for adding feature `XY` is `--features=+XY` or `--features=XY`. If both removing and adding options are provided with the same feature, no operation is performed.

    2. For each feature, a requirements file must exist. For example, feature `XY` is a valid feature if `${IDF_PATH}/tools/requirements/requirements.XY.txt` is an existing file with a list of Python packages to be installed.

    3. There is one mandatory `core` feature ensuring the core functionality of ESP-IDF, e.g., build, flash, monitor, debug in console. There can be an arbitrary number of optional features.

    4. The selected list of features is stored in `idf-env.json`.

    5. The requirement files contain a list of the desired Python packages to be installed and the `espidf.constraints.*.txt` file downloaded from https://dl.espressif.com and stored in `${IDF_TOOLS_PATH}`, which contains the package version requirements for a given ESP-IDF version.

  Note

  Although it is not recommended, the download and use of constraint files can be disabled with the `--no-constraints` argument or setting the `IDF_PYTHON_CHECK_CONSTRAINTS` environment variable to `no`.

- `check-python-dependencies`: Checks if all required Python packages are installed. Packages from `${IDF_PATH}/tools/requirements/requirements.*.txt` files selected by the feature list of `idf-env.json` are checked with the package versions specified in the `espidf.constraints.*.txt` file.

  Note

  The constraint file is downloaded with the `install-python-env` command. Similar to the `install-python-env` command, the use of constraint files can be disabled with the `--no-constraints` argument or setting the `IDF_PYTHON_CHECK_CONSTRAINTS` environment variable to `no`.

- `uninstall`: Prints and removes tools that are currently not used by the active ESP-IDF version.

  - `--dry-run`: Prints installed unused tools.

  - `--remove-archives`: Additionally removes all older versions of previously downloaded installation packages.

## Install Scripts

Shell-specific user-facing installation scripts are provided in the root directory of ESP-IDF repository to facilitate tools installation. These are:

- `install.bat` for Windows Command Prompt

- `install.ps1` for Powershell

- `install.sh` for Bash

- `install.fish` for Fish

Apart from downloading and installing the tools in `IDF_TOOLS_PATH`, these scripts prepare a Python virtual environment, and install the required packages into that environment.

These scripts accept optionally a comma-separated list of chip targets and `--enable-*` arguments for enabling features. These arguments are passed to the `idf_tools.py` script which stores them in `idf-env.json`. Therefore, chip targets and features can be enabled incrementally.

To install tools for all chip targets, run the scripts without any optional arguments using `idf_tools.py install --targets=all`. Similarly, to install Python packages for core ESP-IDF functionality, run `idf_tools.py install-python-env --features=core`.

It is also possible to install tools for specific chip targets. For example, `install.sh esp32` installs tools only for ESP32. See Step 3. Set up the Tools for more examples.

`install.sh --enable-XY` enables feature `XY` (by running `idf_tools.py install-python-env --features=core,XY`).

## Export Scripts

Since the installed tools are not permanently added to the user or system `PATH` environment variable, an extra step is required to use them in the command line. The following scripts modify the environment variables in the current shell to make the correct versions of the tools available:

- `export.bat` for Windows Command Prompt

- `export.ps1` for Powershell

- `export.sh` for Bash

- `export.fish` for Fish

Note

To modify the shell environment in Bash, `export.sh` must be "sourced" by using the command `. ./export.sh`. Please ensure to include the leading dot and space.

`export.sh` may be used with various shells like Bash, Zsh, sh, dash, etc. When using Bash or Zsh, you can run it from any path (e.g., `. ./<<some_path>>/export.sh`) as it automatically detects `IDF_PATH`. For other shells, it must be run from the ESP-IDF directory (`. ./export.sh`) to locate `IDF_PATH` correctly.

### activate.py

The environment setup is handled by the underlying `tools/activate.py` Python script. This script performs all necessary preparations and checks, generating a temporary file that is subsequently sourced by the export script.

`activate.py` can also function as a standalone command. When run, it launches a new child shell with an ESP-IDF environment, which can be utilized and then exited with the `exit` command. Upon exiting the child shell, you will return to the parent shell from which the script was initially executed.

Additionally, the specific behavior of the `activate.py` script can be modified with various options, such as spawning a specific shell with ESP-IDF using the `--shell` option. For more information on available options, use the `activate.py --help` command.

Note

When using `activate.py` on Windows, it should be executed with `python activate.py`. This ensures the script runs in the current terminal window rather than launching a new one that closes immediately.

## Other Installation Methods

Depending on the environment, more user-friendly wrappers for `idf_tools.py` are provided:

- ESP-IDF Tools Installer can download and install the tools. Internally the installer uses `idf_tools.py`.

- ESP-IDF Eclipse Plugin includes a menu item to set up the tools. Internally the plugin calls `idf_tools.py`.

- VSCode ESP-IDF Extension includes an onboarding flow. This flow helps set up the tools. Although the extension does not rely on `idf_tools.py`, the same installation method is used.

## Custom Installation

Although the methods above are recommended for ESP-IDF users, they are not a must for building ESP-IDF applications. ESP-IDF build system expects that all the necessary tools are installed somewhere, and made available in the `PATH`.

When performing a custom installation, ensure that the `ESP_IDF_VERSION` environment variable is set to reflect the current ESP-IDF version, using a format like `5.3` to represent ESP-IDF version `v5.3`. This variable is required by some components for version-specific configurations and is typically set by the `idf_tools.py export` script in standard installations.

## Uninstall ESP-IDF

Uninstalling ESP-IDF requires removing both the tools and the environment variables that have been configured during the installation.

- Windows users using the Windows ESP-IDF Tools Installer can simply run the uninstall wizard to remove ESP-IDF.

- To remove an installation performed by running the supported install scripts, simply delete the tools installation directory including the downloaded and installed tools. Any environment variables set by the export scripts are not permanent and will not be present after opening a new environment.

- When dealing with a custom installation, in addition to deleting the tools as mentioned above, you may also need to manually revert any changes to environment variables or system paths that were made to accommodate the ESP-IDF tools (e.g., `IDF_PYTHON_ENV_PATH` or `IDF_TOOLS_PATH`). If you manually copied any tools, you would need to track and delete those files manually.

- If you installed any plugins like the ESP-IDF Eclipse Plugin or VSCode ESP-IDF Extension, you should follow the specific uninstallation instructions described in the documentation of those components.

Note

Uninstalling the ESP-IDF tools does not remove any project files or your code. Be mindful of what you are deleting to avoid losing any work. If you are unsure about a step, refer back to the installation instructions.

These instructions assume that the tools were installed following the procedures in this provided document. If you've used a custom installation method, you might need to adapt these instructions accordingly.

## List of ESP-IDF Tools

### xtensa-esp-elf-gdb

GDB for Xtensa

License: GPL-3.0-or-later

More info: https://github.com/espressif/binutils-gdb

Platform | Required | Download
--- | --- | ---
linux-amd64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-x86_64-linux-gnu.tar.gz SHA256: 16d05c9104ff84529ac3799abb04d5666c193131ab461f153040721728b48730
linux-arm64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-aarch64-linux-gnu.tar.gz SHA256: ecbd53ba28cf24301be8260249bfcfb60567f938f4402797617c8a0fc170dc7d
linux-armel | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-arm-linux-gnueabi.tar.gz SHA256: c0895e88797089fd6b16e1cb986c5c85a880e0e8dc03bde1016c7771bc10ddba
linux-armhf | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-arm-linux-gnueabihf.tar.gz SHA256: d939e273150f78c79e62c15564cb880f253b8f23670968905ea00687f9a7af2f
linux-i686 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-i586-linux-gnu.tar.gz SHA256: 64ffefb7625edae77a03a13fd9bd07db088dec9d145eb1124de66f11510f7558
macos | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-x86_64-apple-darwin24.5.tar.gz SHA256: 8341493abc87e6ae468f4eda16c768b2ddb20c98336e1c491a3801ad823680ae
macos-arm64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-aarch64-apple-darwin24.5.tar.gz SHA256: 251e3be9c9436d9ab7fee6c05519fd816a05e63bd47495e24ea4e354881a851c
win32 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-i686-w64-mingw32.zip SHA256: 8fc9fa6a934523b6ad6e787cf1664d48496bae456fd85ea7589e3684ce3bbbe5
win64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/xtensa-esp-elf-gdb-16.3_20250913-x86_64-w64-mingw32.zip SHA256: 99a2243b9a75bbac95a672cc3ab4b36013429ab5b4583e7a28339e3015a3fdfa

### riscv32-esp-elf-gdb

GDB for RISC-V

License: GPL-3.0-or-later

More info: https://github.com/espressif/binutils-gdb

Platform | Required | Download
--- | --- | ---
linux-amd64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-x86_64-linux-gnu.tar.gz SHA256: 4e3cf8b7d11c7a2d1b50f40b1c50c0671dfe7eb13782c27c8a8cfdc8548bcdd4
linux-arm64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-aarch64-linux-gnu.tar.gz SHA256: 8f1f4f24fa534c76ed9d71efffbf728cc30169e911742d7bd67dd0fdcf5f3ae3
linux-armel | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-arm-linux-gnueabi.tar.gz SHA256: ac4fc85e3daf190b21598ec468933dc2659033580715560f45827da25e15b285
linux-armhf | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-arm-linux-gnueabihf.tar.gz SHA256: 628d0375f80f63834f68be1b2c4d71690d32ac71b4a9a32f514829a9eb90439f
linux-i686 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-i586-linux-gnu.tar.gz SHA256: 905dcd78558d7d559a95dc1eacc4572ea908be4ae6b1c937ea63a98df4482ca9
macos | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-x86_64-apple-darwin24.5.tar.gz SHA256: 2d5e5efead0b189e13cfe2670ca9d6d5965378ef3632d0b163a14f2f0536c274
macos-arm64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-aarch64-apple-darwin24.5.tar.gz SHA256: 92771492084746fd22521c7c5b52bf1ed6dd86ef3cafe60e771bbdb4f0943f5a
win32 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-i686-w64-mingw32.zip SHA256: c6a36c469d3b76e2b442be207814f7c3f71f21faf6faab4dd33fdedd56d89c01
win64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp-gdb-v16.3_20250913/riscv32-esp-elf-gdb-16.3_20250913-x86_64-w64-mingw32.zip SHA256: 32e79cb43b40f3b256193139b1fefd2782e3eaf82ee317b757ec8ba18b35159d

### xtensa-esp-elf

Toolchain for 32-bit Xtensa based on GCC

License: GPL-3.0-with-GCC-exception

More info: https://github.com/espressif/crosstool-NG

Platform | Required | Download
--- | --- | ---
linux-amd64 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-x86_64-linux-gnu.tar.xz SHA256: 178377e249346c232323cb94f052cdd0b83fcd581db2e2297e629e034243edcf
linux-arm64 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-aarch64-linux-gnu.tar.xz SHA256: 2b79b7b8bf353e42dd1c0aa1d7f06dc681b2c7696d3d82e8cce73c78d0fc517c
linux-armel | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-arm-linux-gnueabi.tar.xz SHA256: f800994451531037b465887588b442e85155a1a55e276cf99f04752d33e3d4f3
linux-armhf | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-arm-linux-gnueabihf.tar.xz SHA256: 55b71f4dfcbfbe6edd3ee890a213ade28e09cd05d52d1b702f64985352753d72
linux-i686 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-i586-linux-gnu.tar.xz SHA256: 074b958b53008ff26e721762381109c50cdd5924de49d83f0d6aea118c786e4d
macos | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-x86_64-apple-darwin.tar.xz SHA256: d5c1f617d7a82d95c9b91aa16293788436695068a9a8b7ac85324038c9476dc6
macos-arm64 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-aarch64-apple-darwin.tar.xz SHA256: 6e3f75d248e6226be5806192bd0619c9e2b43cfeee3211f47035a04b08612d0a
win32 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-i686-w64-mingw32.zip SHA256: 3113e6f6982fc6ed0ce9e2c571e09250b63f074dab11e22066fdc454a1f7161d
win64 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/xtensa-esp-elf-15.2.0_20250929-x86_64-w64-mingw32.zip SHA256: e352f10b641b537384df6c20a128316f27895f90d0b417f7313e58d1418e0768

### esp-clang

Toolchain for all Espressif chips based on clang

License: Apache-2.0

More info: https://github.com/espressif/llvm-project

Platform | Required | Download
--- | --- | ---
linux-amd64 | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/clang-esp-20.1.1_20250829-x86_64-linux-gnu.tar.xz SHA256: 88910c21350c06a521f243304d1a3adbdb78447123b3f8e27493aab75e3cc07f
linux-arm64 | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/clang-esp-20.1.1_20250829-aarch64-linux-gnu.tar.xz SHA256: 41f536fdee22527011d89e416b301648afd9f738d03e1c62f2b27e36ec395c4c
linux-armhf | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/clang-esp-20.1.1_20250829-arm-linux-gnueabihf.tar.xz SHA256: 7b695e88e21ba8a503d504f940dd34a7e4d3e98605c856b6836eec9117a5be94
macos | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/clang-esp-20.1.1_20250829-x86_64-apple-darwin.tar.xz SHA256: 7dca85cd594185d8f9cf76f7e0c3420ee07057c1538b0016d8342677463f9ade
macos-arm64 | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/clang-esp-20.1.1_20250829-aarch64-apple-darwin.tar.xz SHA256: 85ff833a326593df376010a2aa18d6aa444f239c1dfed604e13502d00c19db30
win64 | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/clang-esp-20.1.1_20250829-x86_64-w64-mingw32.tar.xz SHA256: f40d7fa0efa399d129b675585355a7ef42a3492188d743e8e089b6038fcc0da1

### esp-clang-libs

Standalone Clang shared libraries distribution

License: Apache-2.0

More info: https://github.com/espressif/llvm-project

Platform | Required | Download
--- | --- | ---
linux-amd64 | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/libs-clang-esp-20.1.1_20250829-x86_64-linux-gnu.tar.xz SHA256: 0128e2a86b262e3edfce026034ede07e2f45732b10c6cb8ac522c8f4c72befd8
linux-arm64 | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/libs-clang-esp-20.1.1_20250829-aarch64-linux-gnu.tar.xz SHA256: cca598861f999bfd408491f4288c2f381b448f9ddbdac2fb4144747329878405
linux-armhf | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/libs-clang-esp-20.1.1_20250829-arm-linux-gnueabihf.tar.xz SHA256: 26251ee323f616199fcef7a8ea5ee95a2cda2c1e781196ec002c49aeb99de1db
macos | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/libs-clang-esp-20.1.1_20250829-x86_64-apple-darwin.tar.xz SHA256: 1c8ad98599a58c64396476ae9f66e33f408a2b2ed8ee6f8b2f0a92a5bd6bad84
macos-arm64 | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/libs-clang-esp-20.1.1_20250829-aarch64-apple-darwin.tar.xz SHA256: 9582374ed7664aa46c5fc8cedde74b81ec85db9013e7ce85d01e172e92f0ac1f
win64 | optional | https://github.com/espressif/llvm-project/releases/download/esp-20.1.1_20250829/libs-clang-esp-20.1.1_20250829-x86_64-w64-mingw32.tar.xz SHA256: f4346641a38e6a9adad79c429be506b3df26540c50f39ab49dba9ad2c797a805

### riscv32-esp-elf

Toolchain for 32-bit RISC-V based on GCC

License: GPL-3.0-with-GCC-exception

More info: https://github.com/espressif/crosstool-NG

Platform | Required | Download
--- | --- | ---
linux-amd64 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-x86_64-linux-gnu.tar.xz SHA256: 516abd1c8e9646d8b846f180d7c06d95494822df93aa967e097c6591f6e4d4d6
linux-arm64 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-aarch64-linux-gnu.tar.xz SHA256: d38feff577a343a9b0bab2d546e2b0c8ff7e3e6785dec941e8ea567b5c7a23b1
linux-armel | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-arm-linux-gnueabi.tar.xz SHA256: c5baa48f1c9d08b8252342285fb89686ab8ccfcf069a3efc7842b2c59e7a7975
linux-armhf | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-arm-linux-gnueabihf.tar.xz SHA256: df0ffe886d6934b375b0002759f0e6c4bf76d66ea89e12255ab6c0740ef60806
linux-i686 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-i586-linux-gnu.tar.xz SHA256: d424944b7277c16936928737e6c644b0f5cdb4c29e45f421e0bef0020ce8ce23
macos | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-x86_64-apple-darwin.tar.xz SHA256: b16b934b2d7c1c5a27e512c74db795a1913ea141bcea295529d065c9612fe046
macos-arm64 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-aarch64-apple-darwin.tar.xz SHA256: df2a485c0a3133c7a023be9a57853c0861ca318bbcbf86f26e422ad86bdbbe5e
win32 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-i686-w64-mingw32.zip SHA256: bc34d1110070cc5c6a232597d2585255f8132a2c35fd8485a9764c78dc5d80d3
win64 | required | https://github.com/espressif/crosstool-NG/releases/download/esp-15.2.0_20250929/riscv32-esp-elf-15.2.0_20250929-x86_64-w64-mingw32.zip SHA256: b30e667cbcddbe08415a049489380b0a484e5ed243d0f1f4dbb6891b5e5e2252

### esp32ulp-elf

Toolchain for ESP32 ULP coprocessor

License: GPL-3.0-or-later

More info: https://github.com/espressif/binutils-gdb

Platform | Required | Download
--- | --- | ---
linux-amd64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-linux-amd64.tar.gz SHA256: d13a808365b78465fa6591636dfbbb9604d9d15a397c3d9cd22626d54828ac2c
linux-arm64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-linux-arm64.tar.gz SHA256: ecce0788ce1000e5c669c5adaf2fd5bf7f9bf96dcdbd3555d1d9ce4dcb311038
linux-armel | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-linux-armel.tar.gz SHA256: 7228b01277f7908d72eb659470f82e143c4c66b444538a464290d88ece16130e
linux-armhf | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-linux-armhf.tar.gz SHA256: 951b089c66561bc2190a8d57c316dfaef985a778728a7c30e1edcd29fe180016
linux-i686 | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-linux-i686.tar.gz SHA256: df323d40962313168f6feeb2d9471c6010ff23a7896f40244e62991517d9745b
macos | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-macos.tar.gz SHA256: b2aeba8eaafdf156e9e30be928dde1f133b00eaf33802d96827ec544ac7c864c
macos-arm64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-macos-arm64.tar.gz SHA256: e3a4dfea043e2bce8cd00b3a0b260a59249fa61ca5931bf02f18a3d43c18deb4
win32 | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-win32.zip SHA256: d33b64f49df27dcfa4a24d3af1a5ead77b020f85f33448994c31b98f88e66bb4
win64 | required | https://github.com/espressif/binutils-gdb/releases/download/esp32ulp-elf-2.38_20240113/esp32ulp-elf-2.38_20240113-win64.zip SHA256: 3a7627008ac92d1580542b95c696449e56aaa1d0881dc3ef5fd5c60afc77a49d

### cmake

CMake build system

On Linux and macOS, it is recommended to install CMake using the OS-specific package manager (like apt, yum, brew, etc.). However, for convenience it is possible to install CMake using idf_tools.py along with the other tools.

License: BSD-3-Clause

More info: https://github.com/Kitware/CMake

Platform | Required | Download
--- | --- | ---
linux-amd64 | optional | https://github.com/Kitware/CMake/releases/download/v4.0.3/cmake-4.0.3-linux-x86_64.tar.gz SHA256: 585ae9e013107bc8e7c7c9ce872cbdcbdff569e675b07ef57aacfb88c886faac
linux-arm64 | optional | https://github.com/Kitware/CMake/releases/download/v4.0.3/cmake-4.0.3-linux-aarch64.tar.gz SHA256: 391da1544ef50ac31300841caaf11db4de3976cdc4468643272e44b3f4644713
linux-armel | optional | https://dl.espressif.com/dl/cmake/cmake-4.0.3-Linux-armv7l.tar.gz SHA256: ee80bd9c5a310928eb89c9d28c6867a497c9b146e271ede8383e31426b930e15
linux-armhf | optional | https://dl.espressif.com/dl/cmake/cmake-4.0.3-Linux-armv7l.tar.gz SHA256: ee80bd9c5a310928eb89c9d28c6867a497c9b146e271ede8383e31426b930e15
macos | optional | https://github.com/Kitware/CMake/releases/download/v4.0.3/cmake-4.0.3-macos-universal.tar.gz SHA256: 4e85de4daf1c3e82d7dc6b8ba5683972944b466343aeb9c327a742437bb3ce9a
macos-arm64 | optional | https://github.com/Kitware/CMake/releases/download/v4.0.3/cmake-4.0.3-macos-universal.tar.gz SHA256: 4e85de4daf1c3e82d7dc6b8ba5683972944b466343aeb9c327a742437bb3ce9a
win32 | required | https://github.com/Kitware/CMake/releases/download/v4.0.3/cmake-4.0.3-windows-x86_64.zip SHA256: b59a31dfbfa376a4aaea9ff560ff2b29f78ee5f9fb15447fc71ae7bf9fea9379
win64 | required | https://github.com/Kitware/CMake/releases/download/v4.0.3/cmake-4.0.3-windows-x86_64.zip SHA256: b59a31dfbfa376a4aaea9ff560ff2b29f78ee5f9fb15447fc71ae7bf9fea9379

### openocd-esp32

OpenOCD for ESP32

License: GPL-2.0-only

More info: https://github.com/espressif/openocd-esp32

Platform | Required | Download
--- | --- | ---
linux-amd64 | required | https://github.com/espressif/openocd-esp32/releases/download/v0.12.0-esp32-20250707/openocd-esp32-linux-amd64-0.12.0-esp32-20250707.tar.gz SHA256: 766293bd7a08900d3536f87a0a7ade960f07266f16e4147f95ca5ce4e15d4c5d
linux-arm64 | required | https://github.com/espressif/openocd-esp32/releases/download/v0.12.0-esp32-20250707/openocd-esp32-linux-arm64-0.12.0-esp32-20250707.tar.gz SHA256: 34b6883c372444b49950893b2fc0101aefd10d404a88ef72c97e80199f8544d3
linux-armel | required | https://github.com/espressif/openocd-esp32/releases/download/v0.12.0-esp32-20250707/openocd-esp32-linux-armel-0.12.0-esp32-20250707.tar.gz SHA256: fd48492cf3ee16577c661fdccc14c349d34a9ab93aac5039ddf72332d4f4b70b
linux-armhf | required | https://github.com/espressif/openocd-esp32/releases/download/v0.12.0-esp32-20250707/openocd-esp32-linux-armhf-0.12.0-esp32-20250707.tar.gz SHA256: a468cc108578a1f4553ac0502c814d47791ef79f5997a31e941908fa5119de9c
macos | required | https://github.com/espressif/openocd-esp32/releases/download/v0.12.0-esp32-20250707/openocd-esp32-macos-0.12.0-esp32-20250707.tar.gz SHA256: 6267be53892a76d535938a1b044b685adc7d292f090447e8a3e3d0f0996474d1
macos-arm64 | required | https://github.com/espressif/openocd-esp32/releases/download/v0.12.0-esp32-20250707/openocd-esp32-macos-arm64-0.12.0-esp32-20250707.tar.gz SHA256: 150e938ac48a6ee031ddbc8b31043bc7f2073ab2ee4896b658918d35899673c3
win32 | required | https://github.com/espressif/openocd-esp32/releases/download/v0.12.0-esp32-20250707/openocd-esp32-win32-0.12.0-esp32-20250707.zip SHA256: 666274b04af7f36b430b6d063006051c37b8635b5175735ad5af07a1fbc6f486
win64 | required | https://github.com/espressif/openocd-esp32/releases/download/v0.12.0-esp32-20250707/openocd-esp32-win64-0.12.0-esp32-20250707.zip SHA256: 5186ba3f7ee29fb6ab68a4ed7bb417211bad76ecdcdf9280a9187ebfd549a3c1

### ninja

Ninja build system

On Linux and macOS, it is recommended to install ninja using the OS-specific package manager (like apt, yum, brew, etc.). However, for convenience it is possible to install ninja using idf_tools.py along with the other tools.

License: Apache-2.0

More info: https://github.com/ninja-build/ninja

Platform | Required | Download
--- | --- | ---
linux-amd64 | optional | https://github.com/ninja-build/ninja/releases/download/v1.12.1/ninja-linux.zip SHA256: 6f98805688d19672bd699fbbfa2c2cf0fc054ac3df1f0e6a47664d963d530255
macos | optional | https://github.com/ninja-build/ninja/releases/download/v1.12.1/ninja-mac.zip SHA256: 89a287444b5b3e98f88a945afa50ce937b8ffd1dcc59c555ad9b1baf855298c9
macos-arm64 | optional | https://github.com/ninja-build/ninja/releases/download/v1.12.1/ninja-mac.zip SHA256: 89a287444b5b3e98f88a945afa50ce937b8ffd1dcc59c555ad9b1baf855298c9
win64 | required | https://github.com/ninja-build/ninja/releases/download/v1.12.1/ninja-win.zip SHA256: f550fec705b6d6ff58f2db3c374c2277a37691678d6aba463adcbb129108467a

### idf-exe

IDF wrapper tool for Windows

License: Apache-2.0

More info: https://github.com/espressif/idf_py_exe_tool

Platform | Required | Download
--- | --- | ---
win32 | required | https://github.com/espressif/idf_py_exe_tool/releases/download/v1.0.3/idf-exe-v1.0.3.zip SHA256: 7c81ef534c562354a5402ab6b90a6eb1cc8473a9f4a7b7a7f93ebbd23b4a2755
win64 | required | https://github.com/espressif/idf_py_exe_tool/releases/download/v1.0.3/idf-exe-v1.0.3.zip SHA256: 7c81ef534c562354a5402ab6b90a6eb1cc8473a9f4a7b7a7f93ebbd23b4a2755

### ccache

Ccache (compiler cache)

License: GPL-3.0-or-later

More info: https://github.com/ccache/ccache

Platform | Required | Download
--- | --- | ---
win64 | required | https://github.com/ccache/ccache/releases/download/v4.11.2/ccache-4.11.2-windows-x86_64.zip SHA256: 1f39f3ad5aae3fe915e99ad1302633bc8f6718e58fa7c0de2b0ba7e080f0f08c

### dfu-util

dfu-util (Device Firmware Upgrade Utilities)

License: GPL-2.0-only

More info: http://dfu-util.sourceforge.net/

Platform | Required | Download
--- | --- | ---
win64 | required | https://dl.espressif.com/dl/dfu-util-0.11-win64.zip SHA256: 652eb94cb1c074c6dbead9e47adb628922aeb198a4d440a346ab32e7a0e9bf64

### esp-rom-elfs

ESP ROM ELFs

License: Apache-2.0

More info: https://github.com/espressif/esp-rom-elfs

Platform | Required | Download
--- | --- | ---
any | required | https://github.com/espressif/esp-rom-elfs/releases/download/20241011/esp-rom-elfs-20241011.tar.gz SHA256: 921f000164a421c7628fbfee55b173384aafaa51883adc65cd27bf9b0af9e9a9

### qemu-xtensa

QEMU for Xtensa

Some ESP-specific instructions for running QEMU for Xtensa chips are here: https://github.com/espressif/esp-toolchain-docs/blob/main/qemu/esp32/README.md

License: GPL-2.0-only

More info: https://github.com/espressif/qemu

Platform | Required | Download
--- | --- | ---
linux-amd64 | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-xtensa-softmmu-esp_develop_9.2.2_20250817-x86_64-linux-gnu.tar.xz SHA256: 588bfaccd0f929650655d10a580f020c6ba9c131712d8fa519280081b8d126eb
linux-arm64 | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-xtensa-softmmu-esp_develop_9.2.2_20250817-aarch64-linux-gnu.tar.xz SHA256: 317f6e0fd1dba0886d8110709823d909593ef29438822a14f81ebe19d72ce7cd
macos | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-xtensa-softmmu-esp_develop_9.2.2_20250817-x86_64-apple-darwin.tar.xz SHA256: 00b9dbc2124cf7633cb86f264fbc524226ad4001bce68bbdba43c9bdc4eb026e
macos-arm64 | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-xtensa-softmmu-esp_develop_9.2.2_20250817-aarch64-apple-darwin.tar.xz SHA256: aa92e337461d482f5d9f31cd8efc0bd67b3de8fcfcfb567289cb43a59c184651
win64 | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-xtensa-softmmu-esp_develop_9.2.2_20250817-x86_64-w64-mingw32.tar.xz SHA256: ef550b912726997f3c1ff4a4fb13c1569e2b692efdc5c9f9c3c926a8f7c540fa

### qemu-riscv32

QEMU for RISC-V

Some ESP-specific instructions for running QEMU for RISC-V chips are here: https://github.com/espressif/esp-toolchain-docs/blob/main/qemu/esp32c3/README.md

License: GPL-2.0-only

More info: https://github.com/espressif/qemu

Platform | Required | Download
--- | --- | ---
linux-amd64 | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-riscv32-softmmu-esp_develop_9.2.2_20250817-x86_64-linux-gnu.tar.xz SHA256: 373b37a68bae3ef441ead24a7bfc950fcbfc274cbdd2b628fc6915f179eb1d8e
linux-arm64 | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-riscv32-softmmu-esp_develop_9.2.2_20250817-aarch64-linux-gnu.tar.xz SHA256: f907a54313058f8a9681d2f48257d518950ff98bcd5a319194b4bee7c10cf223
macos | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-riscv32-softmmu-esp_develop_9.2.2_20250817-x86_64-apple-darwin.tar.xz SHA256: 820028ee7cd2dd8fe8cd8ca5519ab6e792d15fea9367c4525cf63c0f707c0b1f
macos-arm64 | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-riscv32-softmmu-esp_develop_9.2.2_20250817-aarch64-apple-darwin.tar.xz SHA256: 234690b6fa7c1d5dfe3dbb2bdd0c2810755e7c98999a9f21c389a6046b7eb76d
win64 | optional | https://github.com/espressif/qemu/releases/download/esp-develop-9.2.2-20250817/qemu-riscv32-softmmu-esp_develop_9.2.2_20250817-x86_64-w64-mingw32.tar.xz SHA256: 9474015f24d27acb7516955ec932e5307226bd9d6652cdc870793ed36010ab73

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