Open-source embedded software
741 open-source libraries, tools and applications tagged embedded, ranked by how closely embedded is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
741 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Batocera Linux Batocera Linux is an open-source retro-gaming Linux distribution that turns any computer or single-board computer into a dedicated game con… | 68 | 3265 | active |
| davidmonterocrespo24/velxio Velxio is an open-source browser-based emulator and circuit simulator for Arduino, ESP32, Raspberry Pi, STM32 and other embedded boards, ru… | 80 | 3260 | active |
| Johnny-Five Johnny-Five is a Firmata protocol-based JavaScript robotics and IoT programming framework for Node.js. It provides composable, consistent A… | 23 | 13409 | maintenance |
| CosmosOS/Cosmos Cosmos is an operating system construction kit that lets developers build bare-metal OS kernels using .NET languages like C#, VB.NET, and F… | 99 | 3217 | active |
| Ender3 V2/S1 Firmware Optimized Marlin-based firmware for Creality Ender 3 V2 and S1 3D printers, with precompiled binaries for STM32 RET6/RCT6 boards. It adds f… | 72 | 3184 | active |
| T-vK/ESP32-BLE-Keyboard An Arduino-compatible C++ library that turns an ESP32 into a Bluetooth LE (BLE) keyboard. It lets sketches send keystrokes, text, individua… | 23 | 3163 | active |
| Tilck Tilck is a tiny educational Linux-compatible kernel written in C and assembly, targeting i386 and riscv64 with UEFI boot support. It implem… | 75 | 3132 | active |
| openhwgroup/cva6 CVA6 is an open-source, 6-stage, single-issue, in-order RISC-V CPU core written in SystemVerilog, supporting the 64-bit RV64GC ISA with thr… | 73 | 3128 | active |
| qmk/qmk_toolbox A cross-platform desktop application that packages multiple firmware flashing tools for QMK keyboards into one GUI, supporting auto-detecti… | 81 | 3086 | active |
| u-root/u-root u-root is a Go-based userland that provides nearly 200 Unix commands rewritten in Go, compilable into a single busybox-style binary, plus t… | 75 | 3077 | active |
| ophub/amlogic-s9xxx-openwrt A build and firmware distribution project that runs OpenWrt on Amlogic, Rockchip, and Allwinner TV boxes and single-board computers. It pro… | 99 | 3049 | active |
| simplefoc/Arduino-FOC SimpleFOC is an Arduino/PlatformIO C++ library implementing Field Oriented Control (FOC) for BLDC and stepper motors. It supports many moto… | 71 | 3042 | active |
| Home Accessory Architect HAA (Home Accessory Architect) is firmware that adds native Apple HomeKit support and custom configurations to ESP32 and ESP8266 based devi… | 96 | 3005 | active |
| Espruino Espruino is an open-source JavaScript interpreter and firmware for microcontrollers, designed to run on devices with as little as 128kB Fla… | 77 | 2978 | active |
| google/mozc-devices Google's repository of circuit diagrams and C++ firmware source code for building DIY versions of Gboard novelty keyboards, formerly Google… | 76 | 2970 | active |
| dalathegreat/Battery-Emulator Battery-Emulator is firmware that lets second-life EV battery packs be reused as stationary home energy storage by translating communicatio… | 94 | 2959 | active |
| i-am-shodan/USBArmyKnife USB Army Knife is firmware for ESP32-based USB devices (like the T-Dongle-S3) that turns them into a close-access penetration testing tool.… | 73 | 2954 | active |
| earlephilhower/arduino-pico An Arduino core that ports the Arduino development environment to the Raspberry Pi Pico's RP2040 and RP2350 microcontrollers, built on the … | 99 | 2887 | active |
| awalol/DS5Dongle Firmware that turns a Raspberry Pi Pico 2 W into a wireless Bluetooth dongle for the DualSense (PS5) controller, making it appear as a wire… | 75 | 2875 | active |
| sqfmi/Watchy Watchy is a fully open-source E-Ink smartwatch built on ESP32, accompanied by an Arduino library for developing custom watch faces and firm… | 36 | 2840 | active |
| PJON PJON is an experimental, multi-master, software-defined network protocol stack for microcontrollers and general-purpose systems, supporting… | 43 | 2832 | active |
| LibreELEC/LibreELEC.tv LibreELEC is a lightweight 'Just enough OS' Linux distribution purpose-built for running Kodi on popular mediacentre hardware. This reposit… | 73 | 2831 | active |
| ARMmbed/DAPLink Arm Mbed DAPLink is open-source interface firmware that runs on a secondary MCU attached to the SWD/JTAG port of an Arm Cortex application … | 63 | 2816 | active |
| espressif/esp32-camera Espressif's official camera driver library for ESP32-series SoCs (ESP32, ESP32-S2, ESP32-S3), supporting a wide range of image sensors like… | 93 | 2813 | active |
| coreboot/coreboot coreboot is an open-source firmware project that replaces proprietary BIOS/UEFI on computers, performing hardware initialization and then h… | 67 | 2807 | active |
| BitMaker-hub/NerdMiner_v2 NerdSoloMiner v2 is open-source firmware that turns ESP32-based boards (like the LILYGO T-Display S3) into a small Bitcoin solo CPU miner i… | 68 | 2804 | active |
| atar-axis/xpadneo An advanced Linux kernel driver for the Xbox One wireless controller (Bluetooth), built as a DKMS module in C. It fixes quirks of the stock… | 88 | 2785 | active |
| Koenkk/Z-Stack-firmware A repository providing compilation instructions and precompiled hex firmware files for Texas Instruments Z-Stack Zigbee firmware, targeting… | 66 | 2770 | active |
| pongoOS PongoOS is a pre-boot execution environment for Apple boards, built on top of the checkra1n jailbreak tool. It provides an interactive shel… | 32 | 2759 | active |
| goodtft/LCD-show A collection of shell scripts and drivers that install and configure TFT LCD display and touchscreen support for various screen sizes (2.4"… | 74 | 2737 | active |
| Zer0-bit/gaggiuino Gaggiuino is an open-source firmware and hardware mod that upgrades a Gaggia Classic espresso machine with microcontroller-based control (S… | 98 | 2674 | active |
| Mongoose OS Mongoose OS is an open-source IoT firmware development framework and operating system for low-power microcontrollers such as ESP32, ESP8266… | 66 | 2666 | stable |
| rust-embedded/embedded-hal embedded-hal is a Rust Hardware Abstraction Layer providing core traits for embedded systems, enabling platform-agnostic device drivers. It… | 57 | 2655 | stable |
| Modos-Labs/Glider Glider is an open-source low-latency E-ink monitor project, containing hardware designs and documentation, paired with the open-source Cast… | 70 | 2651 | active |
| nisargjhaveri/WirelessAndroidAutoDongle A DIY wireless Android Auto adapter built with Buildroot that runs on Raspberry Pi boards, letting cars with only wired Android Auto use wi… | 32 | 2646 | active |
| sanni/cartreader An open-source Arduino Mega shield and firmware for dumping video game cartridge ROMs and save files to an SD card without a PC. It support… | 10 | 2645 | active |
| anthropics/claude-desktop-buddy A reference implementation and example firmware for the Bluetooth (BLE) maker API in Claude Cowork and Claude Code Desktop, including an ES… | 46 | 2625 | active |
| darklife/darkriscv DarkRISCV is an open-source RISC-V CPU softcore implemented from scratch in Verilog, supporting RV32E/RV32I and running on a wide range of … | 74 | 2622 | active |
| RadioLib RadioLib is a universal C++ wireless communication library for embedded devices, providing a unified API to drive many radio modules (SX127… | 95 | 2614 | active |
| google-coral/coralnpu Coral NPU is an open-source neural processing unit (NPU) hardware IP core from Google Research, built on the 32-bit RISC-V ISA with matrix,… | 72 | 2604 | active |
| FluidNC FluidNC is CNC motion control firmware for the ESP32, the successor to Grbl_ESP32, supporting multiple machine and tool types with a config… | 94 | 2593 | active |
| edk2-porting/edk2-msm An EDK2-based UEFI firmware port for Qualcomm Snapdragon mobile platforms, enabling phones to boot a UEFI environment. It serves as a boot … | 51 | 2593 | active |
| OpenStickCommunity/GP2040-CE GP2040-CE is a multi-platform gamepad firmware for the Raspberry Pi Pico and other RP2040-based microcontroller boards, offering extremely … | 71 | 2566 | active |
| NicoHood/HID An Arduino library that adds enhanced USB HID functionality to standard Arduino boards, enabling them to act as keyboards, mice, gamepads, … | 23 | 2566 | stable |
| xCuri0/ReBarUEFI A UEFI DXE driver (built with edk2) that enables Resizable BAR on motherboards that lack official support, injected into the firmware's DXE… | 44 | 2540 | active |
| No-Chicken/OV-Watch OV-Watch is an open-source smart watch project built on an STM32F411 microcontroller running FreeRTOS with an LVGL-based user interface. It… | 55 | 2504 | active |
| nerves-project/nerves Nerves is a framework and set of tools for building and deploying small, self-contained firmware images for embedded Linux devices using El… | 93 | 2496 | stable |
| corundum/corundum Corundum is an open-source FPGA-based network interface card (NIC) and platform for in-network compute, written in Verilog/SystemVerilog. I… | 32 | 2489 | active |
| nRF24/RF24 An optimized C++ driver library for the nRF24L01(+) 2.4GHz wireless transceiver, acting as an OSI Layer 2 radio driver. It supports Arduino… | 85 | 2470 | active |
| Circuit-Digest/ESP-Drone ESP-Drone is a DIY drone firmware and hardware project built on the ESP32 and MPU6050 IMU, providing Wi-Fi-based stabilization and phone co… | 58 | 2464 | active |
| EdgeTX EdgeTX is an open-source firmware for RC radio transmitters, forked from OpenTX with a touch-enabled UI, Lua scripting support, and broad h… | 96 | 2452 | active |
| rbaron/b-parasite An open source DIY soil moisture sensor with ambient temperature, humidity, and light sensing, built on nRF52840/nRF52833 hardware and powe… | 79 | 2444 | active |
| dotnet/iot Official .NET libraries (System.Device.Gpio and Iot.Device.Bindings) for building IoT applications that interact with GPIO pins, serial por… | 80 | 2414 | active |
| MHeironimus/ArduinoJoystickLibrary An Arduino library that lets an Arduino Leonardo, Micro, or other ATmega32u4-based board appear as one or more USB HID joysticks or gamepad… | 23 | 2409 | stable |
| RTIC RTIC is a hardware-accelerated concurrency framework for building real-time systems on ARM Cortex-M and most RISC-V microcontrollers in Rus… | 75 | 2408 | active |
| AstraThreshold/oled-ui-astra A C++ UI framework for building smooth, animated menu interfaces on small OLED displays in embedded projects. It is designed to be easy to … | 31 | 2402 | active |
| OpenGloves LucidGloves is an open-source DIY VR haptic glove project providing Arduino/ESP32 firmware and 3D-printable hardware files for finger track… | 41 | 2396 | active |
| torvalds/GuitarPedal A digital guitar pedal project by Linus Torvalds built around an RP2354A microcontroller and a TI audio codec, with seventeen software-defi… | 62 | 2394 | active |
| 0x1abin/MultiButton A compact C library implementing a state-machine-driven multi-button driver for embedded systems, supporting seven event types with built-i… | 61 | 2381 | stable |
| PYNQ PYNQ is an open-source Python framework from AMD/Xilinx for designing embedded systems on Zynq and other adaptive computing platforms (FPGA… | 93 | 2364 | active |
| openocd-org/openocd OpenOCD (Open On-Chip Debugger) is a command-line tool providing on-chip programming and debugging for embedded systems via JTAG/SWD adapte… | 84 | 2332 | active |
| rsta2/circle Circle is a C++ bare metal programming environment for the Raspberry Pi, providing ready-tested classes and add-on libraries to control har… | 75 | 2311 | active |
| ckcr4lyf/EvilAppleJuice-ESP32 An ESP32 firmware written in C++ that spams Apple Continuity BLE advertisements to flood nearby iPhones with pop-up notifications. It is ba… | 64 | 2305 | active |
| openshwprojects/OpenBK7231T_App OpenBeken is open-source firmware serving as a Tasmota/ESPHome replacement for Tuya-based and other IoT modules across many chipsets (BK723… | 92 | 2298 | active |
| NEORV32 RISC-V Processor NEORV32 is a customizable 32-bit RISC-V soft-core CPU and microcontroller-like SoC written in platform-independent VHDL. It bundles the CPU… | 97 | 2283 | active |
| bigtreetech/BIGTREETECH-SKR-mini-E3 Repository for the BIGTREETECH SKR Mini E3, an ultra-quiet 32-bit control board for 3D printers, containing firmware binaries, hardware doc… | 42 | 2275 | active |
| ARM-software/arm-trusted-firmware Trusted Firmware-A (TF-A) is a reference implementation of secure world software (EL3 firmware, trusted boot, and a small trusted runtime) … | 76 | 2262 | active |
| HermannBjorgvin/Clawdmeter Clawdmeter is ESP32 firmware for a small desk dashboard that displays Claude Code usage with animated pixel-art indicators on AMOLED/LCD to… | 82 | 2260 | active |
| AtomVM AtomVM is a lightweight implementation of the BEAM virtual machine that runs Erlang, Elixir, and Gleam bytecode on microcontrollers and oth… | 67 | 2248 | active |
| themactep/thingino-firmware Thingino is an open-source firmware for IP cameras built on Ingenic SoCs, replacing locked-down vendor software with a transparent, communi… | 99 | 2239 | active |
| OpenIPC OpenIPC is an open-source, Buildroot-based alternative firmware for IP cameras, supporting SoCs from HiSilicon, SigmaStar, Ingenic, Novatek… | 85 | 2233 | active |
| GlasgowEmbedded/glasgow Glasgow Interface Explorer is an open-source software stack (Python-based) for the Glasgow open hardware tool, an FPGA-based USB interface … | 77 | 2226 | active |
| bmorcelli/Launcher A GRUB-like application launcher firmware for ESP32-based boards such as M5Stack, LilyGO, CYD, and Marauder devices. It lets users install,… | 91 | 2220 | active |
| MatthewKuKanich/FindMyFlipper A FlipperZero application that turns the device into a BLE tracker beacon emulating Apple AirTags, Samsung SmartTags, or Tile trackers. It … | 19 | 2209 | active |
| HomeSpan/HomeSpan HomeSpan is an Arduino library for building custom Apple HomeKit accessories on ESP32 microcontrollers, implementing the HAP-R2 protocol di… | 84 | 2188 | active |
| opentx/opentx OpenTX is open-source custom firmware for RC radio transmitters, written in C++. It replaces stock transmitter firmware to provide advanced… | 62 | 2188 | active |
| cnlohr/mini-rv32ima A tiny, single-file, header-only RISC-V RV32IMA emulator written in ~400 lines of dependency-free C, capable of booting Linux (RV32-NOMMU).… | 55 | 2185 | active |
| ThingPulse/esp8266-oled-ssd1306 An Arduino/ESP8266/ESP32/mbed-os driver library for SSD1306 and SH1106 based OLED displays in 128x64, 128x32, 64x48, and 64x32 resolutions,… | 63 | 2178 | stable |
| penk/penkesu Penkesu Computer is an open-source hardware project providing complete designs, 3D-printable case files, and a bill of materials for buildi… | 32 | 2173 | stable |
| adafruit/DHT-sensor-library An Arduino library for reading DHT series low-cost temperature and humidity sensors (DHT11, DHT22, AM2302). It provides a simple C++ API on… | 60 | 2169 | stable |
| christianhaitian/arkos ArkOS is a Linux-based custom operating system for retro gaming handhelds built on Rockchip and similar SoCs, such as the RG351 series, RGB… | 10 | 2151 | active |
| esp-rs/esp-hal esp-hal is a bare-metal (no_std) hardware abstraction layer written in Rust for Espressif ESP32-family microcontrollers, covering ESP32, C,… | 94 | 2150 | active |
| bluekitchen/btstack BTstack is BlueKitchen's dual-mode Bluetooth stack (Classic + Low Energy) implemented in C with an ultra-small, highly configurable memory … | 76 | 2144 | active |
| Ibex RISC-V Core Ibex is a production-quality, open-source 32-bit RISC-V CPU core written in SystemVerilog, originally developed as 'Zero-riscy' in the PULP… | 77 | 2126 | active |
| pocketpy/pocketpy pocketpy is a portable Python 3.x interpreter written in C11 with no dependencies beyond the C standard library, designed as a Lua alternat… | 92 | 2125 | active |
| sunnypilot/sunnypilot sunnypilot is an open-source driver assistance system forked from comma.ai's openpilot, providing adaptive cruise control, automated lane c… | 95 | 2121 | active |
| mcu-tools/mcuboot MCUboot is a secure bootloader for 32-bit microcontrollers that defines common infrastructure for bootloaders and flash layout, enabling se… | 77 | 2120 | stable |
| davidphilipbarr/Sweep Sweep is an open-source compact split ergonomic keyboard design inspired by the Ferris, using a daughterboard such as a ProMicro, Elite-C, … | 45 | 2119 | active |
| adafruit/Adafruit_SSD1306 An Arduino library for driving monochrome OLED displays based on the SSD1306 controller chip, supporting 128x64 and 128x32 panels over I2C … | 73 | 2108 | stable |
| joeycastillo/Sensor-Watch Sensor Watch is an open-source replacement main board for the classic Casio F-91W wristwatch, built around a Microchip SAM L22 ARM Cortex-M… | 77 | 2098 | active |
| Wasm3 Wasm3 is a fast WebAssembly interpreter and universal WASM runtime written in C, usable as a CLI tool or embedded library with bindings for… | 97 | 8037 | maintenance |
| usbarmory/tamago TamaGo is a framework that enables compilation and execution of Go applications directly on bare metal processors, without any underlying o… | 96 | 2060 | active |
| libretro/Lakka-LibreELEC Lakka is a lightweight open-source Linux distribution built on LibreELEC that turns small computers like the Raspberry Pi into a dedicated … | 72 | 2056 | active |
| TOTEM TOTEM is an open-source 38-key column-staggered Choc split keyboard design, including KiCad PCB files, Gerbers, a 3D-printable case, and bu… | 37 | 2055 | stable |
| cherry-embedded/CherryUSB CherryUSB is a portable, high-performance USB host and device stack written in C for embedded systems with various USB IPs. It provides cla… | 86 | 2051 | active |
| mongoose-os-apps/shelly-homekit Open-source Apple HomeKit firmware for Shelly smart home devices, written in C++ on Mongoose OS. It exposes Shelly relays, sensors, and shu… | 92 | 2047 | active |
| analogdevicesinc/hdl Analog Devices' HDL (Verilog/VHDL) libraries and FPGA reference design projects for their evaluation boards, built with AMD Xilinx Vivado o… | 87 | 2022 | active |
| pConst/basic_verilog A collection of reusable, synthesizable Verilog/SystemVerilog modules for FPGA projects, including UART, SPI, FIFO, PWM, debounce, synchron… | 61 | 2021 | active |
| CANopenNode CANopenNode is a free and open-source CANopen protocol stack written in ANSI C, implementing the standardized CiA301 (EN 50325-4) higher-la… | 60 | 2020 | stable |
| TailsmanDesign/PocketMage_PDA PocketMage is an open-source E-Ink PDA built on an ESP32-S3, running a custom C++ operating system (PocketMageOS) developed with PlatformIO… | 81 | 2019 | active |