Flipper Zero firmware source code https://flipperzero.one
  • C 98.6%
  • Python 1.2%
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d3npa 9148d50ca3
Fix USB/BLE HID limits to support international keyboards and add ja-JP keyboard layout for BadUSB (#4361)
* fix HID limits to support international keyboards

* add ja-JP keyboard

* increase limits on BLE HID device profile

---------

Co-authored-by: Štefan Croitoru <66339601+turbospok@users.noreply.github.com>
2026-08-04 16:35:34 +03:00
.github Storage: add retry on file copy to Flipper (#4402) 2026-07-02 16:16:19 +03:00
.vscode vscode add fbt format and clear cmds (#4302) 2026-06-30 09:27:37 +03:00
applications Fix USB/BLE HID limits to support international keyboards and add ja-JP keyboard layout for BadUSB (#4361) 2026-08-04 16:35:34 +03:00
applications_user [FL-2627] Flipper applications: SDK, build and debug system (#1387) 2022-09-15 02:21:03 +09:00
assets GUI Bug Fix: Number Input Save Icon (#4273) 2025-09-23 14:02:45 +01:00
documentation Fix User Documentation link in index.dox (#4410) 2026-07-08 13:48:01 +03:00
furi Improve some documentation in the view_dispatcher and view_port (#4318) 2026-06-30 21:01:31 +03:00
lib Fix USB/BLE HID limits to support international keyboards and add ja-JP keyboard layout for BadUSB (#4361) 2026-08-04 16:35:34 +03:00
scripts Storage: add retry on file copy to Flipper (#4402) 2026-07-02 16:16:19 +03:00
site_scons Fix DWARF dead code elimination and linking (#4144) 2025-03-31 22:32:58 +04:00
targets Fix USB/BLE HID limits to support international keyboards and add ja-JP keyboard layout for BadUSB (#4361) 2026-08-04 16:35:34 +03:00
.clang-format [FL-3867] Code formatting update (#3765) 2024-07-15 13:38:49 +09:00
.clangd Clangd: Add clangd parameters in IDE agnostic config file (#4319) 2026-06-30 22:03:00 +03:00
.editorconfig Remove unused entries from .editorconfig (#3811) 2024-07-28 00:57:39 +03:00
.gitattributes [FL-2554] Embedded arm-none-eabi toolchain (#1351) 2022-07-15 01:24:26 +09:00
.gitignore vcp, cli: Handle Tx/Rx events before Connect/Disconnect + extra fixes (#4181) 2025-04-11 14:53:10 +04:00
.gitmodules Storage: remove LFS (#3577) 2024-08-04 10:54:02 +01:00
.pvsconfig [FL-3846] Event Loop Timers (#3721) 2024-07-02 13:09:50 +01:00
.pvsoptions Storage: remove LFS (#3577) 2024-08-04 10:54:02 +01:00
.sublime-project toolchain: v39 (#3793) 2024-07-30 11:30:25 +09:00
CODE_OF_CONDUCT.md Code of Conduct (#739) 2021-10-02 20:32:18 +03:00
CODING_STYLE.md fix: make dialog_file_browser_set_basic_options initialize all fields (#2756) 2023-06-27 18:46:04 +09:00
CONTRIBUTING.md Docs: Fix links and other stuff (#4396) 2026-06-29 19:53:56 +03:00
fbt Toolchain fixes (#3451) 2024-02-26 16:16:19 +04:00
fbt.cmd Toolchain fixes (#3451) 2024-02-26 16:16:19 +04:00
fbt_options.py Infrared Universal remote DBs unit test & move infrared_signal / infrared_brute_force into lib (#4284) 2025-11-06 20:23:59 +04:00
firmware.scons FBT: Don't lint JS packages (#4030) 2024-12-23 09:52:37 +09:00
LICENSE Add LICENSE (#644) 2021-08-13 21:19:42 +03:00
ReadMe.md docs: adjusted formatting in README Flipper Zero Firmware section (#4308) 2026-06-30 09:34:16 +03:00
SConstruct [FL-3954, FL-3955] New CLI architecture (#4111) 2025-04-02 22:10:10 +04:00
tsconfig.json [FL-3918] Full-fledged JS SDK + npm packages (#3963) 2024-10-31 11:42:57 +09:00

A pixel art of a Dophin with text: Flipper Zero Official Repo

Flipper Zero Firmware

Contributing

Our main goal is to build a healthy and sustainable community around Flipper, so we're open to any new ideas and contributions. We also have some rules and taboos here, so please read this page and our Code of Conduct carefully.

I need help

The best place to search for answers is our User Documentation. If you can't find the answer there, check our Discord Server. If you want to contribute to the firmware development or modify it for your own needs, you can also check our Developer Documentation.

I want to report an issue

If you've found an issue and want to report it, please check our Issues page. Make sure the description contains information about the firmware version you're using, your platform, and a clear explanation of the steps to reproduce the issue.

I want to propose a new feature

If you have a feature request or want to vote on an existing one, please use Discussions and follow our Discussion Guidelines.

I want to contribute code

Before opening a PR, please confirm that your changes must be contained in the firmware. Many ideas can easily be implemented as external applications and published in the Flipper Application Catalog. If you are unsure, reach out to us on the Discord Server or the Issues page, and we'll help you find the right place for your code.

Also, please read our Contribution Guide and our Coding Style, and make sure your code is compatible with our Project License.

Finally, open a Pull Request and make sure that CI/CD statuses are all green.

Development

Flipper Zero Firmware is written in C, with some bits and pieces written in C++ and armv7m assembly languages. An intermediate level of C knowledge is recommended for comfortable programming. C, C++, and armv7m assembly languages are supported for Flipper applications.

Requirements

Supported development platforms:

  • Windows 10+ with PowerShell and Git (x86_64)
  • macOS 12+ with Command Line tools (x86_64, arm64)
  • Ubuntu 20.04+ with build-essential and Git (x86_64)

Supported in-circuit debuggers (optional but highly recommended):

Flipper Build System will take care of all the other dependencies.

Cloning source code

Make sure you have enough space and clone the source code:

git clone --recursive https://github.com/flipperdevices/flipperzero-firmware.git

Building

Build firmware using Flipper Build Tool:

./fbt

Flashing firmware using an in-circuit debugger

Connect your in-circuit debugger to your Flipper and flash firmware using Flipper Build Tool:

./fbt flash

Flashing firmware using USB

Make sure your Flipper is on, and your firmware is functioning. Connect your Flipper with a USB cable and flash firmware using Flipper Build Tool:

./fbt flash_usb

Documentation

Project structure

  • applications - Applications and services used in firmware
  • applications_users - Place for your additional applications and services
  • assets - Assets used by applications and services
  • documentation - Documentation generation system configs and input files
  • furi - Furi Core: OS-level primitives and helpers
  • lib - Our and 3rd party libraries, drivers, tools and etc...
  • site_scons - Build system configuration and modules
  • scripts - Supplementary scripts and various python libraries
  • targets - Firmware targets: platform specific code

Also, see ReadMe.md files inside those directories for further details.

Links

SAST Tools

  • PVS-Studio - static analyzer for C, C++, C#, and Java code.