Awesome hamradio repositories.
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A collection of the best free and open source hamradio projects!


Operating Systems


  • APRS Track Direct APRS Track Direct is a collection of tools that can be used to run an APRS website.


  • HBLink3 Open Source HomeBrew Repeater Protocol Client/Master, can be used to create links between hotspots and repeaters.


  • MD380Tools and TyMD380Tools have reverse engineered the MD380 and MD-2017/MDUV380 series radios respectively and have tools to build and work with replacement firmwares. MD380tools has most of what you need to understand the TYT .rdt codeplug format.
  • OpenGD77 Firmware for DMR transceivers using the NXP MK22 MCU, AT1846S RF chip and HR-C6000 DMR chipset. Including the Radioddiy GD-77, Baofeng DM-1801 and Baofeng RD-5R.
  • G90Tools Tools and guides for working with the Xiegu G90 HF radio firmware
  • OpenRTX OpenRTX is a free and open source firmware for digital amateur radio devices, top-down designed with modularity, flexibility and performance in mind.
  • K3ng CW Keyer is an open source Arduino based CW Keyer.


  • multimon-ng decodes many paging, AFSK modes, and similar, including POCSAG, FLEX, EAS.
  • Codec2 is a FOSS ultra-low bitrate voice codec that's competitive from 3200 bits/s down to 450 bits/s.
    • FreeDV, an HF digital voice mode based upon Codec2.
    • PyCodec2 is an easy Python wrapper for Codec2.
    • FreeDATA is a free and open-source TNC with a GUI for codec2.


  • UniPager Universal POCSAG transmitter controller written in Rust.


  • GNU Radio a software development toolkit that provides signal processing blocks to implement software radios.
  • gqrx is an open source software defined radio (SDR) receiver implemented using GNU Radio and the Qt GUI toolkit.
  • linhpsdr linux hpsdr software.
  • pihpsdr Raspberry Pi 3 standalone code for HPSDR
  • quisk SDR software to control different radios like the Hermes-Lite or HiQSDR
  • CubicSDR a Cross-Platform Software-Defined Radio Application.
  • insprectrum is a tool for analyzing captured signals, primarily from software-defined radio receivers.
  • ShinySDR is the software component of a software-defined radio receiver like the HackRF or RTL-SDR.
  • SDRangel SDR and signal analyzer frontend to various hardware.
  • PyMultimonAPRS can take an RTLSDR or audio input and Igate APRS traffic.
  • OpenWebRX Open source, multi-user SDR receiver software with a web interface, forked and improved from HA7ILM's excellent initial project.
  • Qradiolink Multimode SDR transceiver for GNU radio
  • SDRPlusPlus SDR++ is a cross-platform and open source SDR software with the aim of being bloat free and simple to use.


  • Cloudlog Cloudlog is a self-hosted PHP application that allows you to log your amateur radio contacts anywhere. All you need is a web browser and active internet connection.
  • CQRLOG an advanced ham radio logger based on MySQL database.
  • KLog Linux, macOS and Windows multiplatform Hamradio logger.
  • PyQSO is a contact logging tool for amateur radio operators.
  • Xlog a minimal logging program for Amateur Radio Operators.
  • GridTracker is a warehouse of amateur radio information presented in an easy to use interface, from live traffic decodes, logbooks, spot reports, weather, current solar conditions and more. (Used with WSJT-X)/
  • Not1MM an alternative to N1MM contest logger using Python and QT.
  • Node Red Contesting Dashboard A basic multi screen contesting dashboard written in Node Red.
  • TLF is a logging program for radiosport, or ham radio contests. It supports CQWW, CQ-WPX, ARRL-DX, ARRL-FD, PACC, and EU SPRINT contests as well as many more, and also has general QSO and DXpedition modes.


  • WSJT five programs designed for amateur radio communication
    • WSJT: Modes optimized for meteor scanner, ionospheric scatter, and EME at VHF/UHF/Microwaves.
    • WSJT-X: Modes JT65, JT9. Primarily for use at HF.
    • MAP65: For EME an VHF and higher frequencies. Implements a panoramic, polarization-matching receiver for JT65.
    • WSPR: Probe potential propagation paths using low-power transmissions.
    • WSPR-X: Experimental version of WSPR, including the slow mode WSPR-15.
  • fldigi is a modem program for most of the digital modes used by radio amateurs today.
  • W0CHP-PiStar-Dash is a highly modified and customized fork of Pi-Star for DMR, YSF, M17, NXDN, DSTAR and others.


  • Hamlib libraries for amateur radio equipment control applications.
  • pyhamtools is a set of functions and classes for Amateur Radio purposes.
  • CSDR csdr is a command line tool to carry out DSP tasks for Software Defined Radio.

Radio programming

  • CHIRP a free, open-source tool for programming your amateur radio.
  • editcp a codeplug editor for the Tytera MD380 and MD390 as well as the Alinco DJ-MD40 radios.

Satellite operation

  • Gpredict a real-time satellite tracking and orbit prediction application.
  • gr-satellites GNU Radio decoders for several Amateur satellites.


  • AFU Group Trainer a tool that eases the collaborative learning for the (German) HAM exam by allowing each student to answer the questions during a learning session instead of just one person answering. (Currently only in german)

  • MorseRunner-CE is an effective practice tool for improving their CW copying and pileup handling skills.


  • NEC2++ Numerical Electromagnetic Code in C++.


  • MMDVM Multi-Mode Digital Voice Modem
  • HPSDR a hardware and software project intended as a "next generation" Software Defined Radio (SDR) for use by Radio Amateurs.
  • SM1000 FreeDV adapter FreeDV in hardware. Purchasable on tindie
  • Hermes Lite2 a low-cost software defined amateur radio HF transceiver based on a broadband modem chip and the Hermes SDR project.
  • Mobilinkd TNCs have open firmware, unsure if hardware is open. Homepage
  • QCX-SSB This is a simple and experimental modification that transforms your QCX into a (class-E driven) SSB transceiver.
  • uBITx An understandable general coverage HF SSB/CW transceiver kit.
  • M17-Project/OpenHT-hw Hardware part of the OpenHT - an open-source, SDR handheld transceiver.
  • bmo/tuning-knob-pcboard Open Source Tuning knob that works with PowerSDR and SmartSDR and Remote Ham Radio (RHR). Uses STM32 hardware.
  • AIOC USB-C All-in-One board used for Audio, PTT, and Programming HTs.
  • OpenCWKeyerMK2 Open-Source Version of the K1EL Winkeyer using K3NG firmware.