GitHub gems: open-source software from small creators1,155 projects

DMD MARQUEE with gifs playlist/widgets ( meteo, cal..) and UDP Interface between Recalbox and an ESP32-driven or an RPI +128x32 DMD displaying game marquees,hi-score,game info.Support VPINBALL (*.vpx ) render.

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An app for musicians to track their repertoire and media.

Secure Encrypt with AES-256 | Free, open-source AES-256 file & folder encryption for Windows. Self-decrypting files – recipient needs no app. Plus a browser version.

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Network security scanner. Nmap-powered port scanning, CMS detection with live CVE lookup (CIRCL), security headers scoring and SSL/TLS analysis. GTK4 desktop GUI. Part of the ShieldEye toolkit.

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Shuttle Music: a music player for Android and iOS. Plays local files and streams from Jellyfin, Emby, Plex and Navidrome/Subsonic, with Chromecast, Android Auto, EQ and replay gain.

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Free, open-source auto music player for Sky: Children of the Light on Windows — plays JSON, skysheet, and TXT sheets hands-free.

Lightweight cross-platform desktop organizer for software shortcuts with tab-based categorization. Built with Python and PySide6.

Touchscreen Sonos controller for ESP32-P4 — album art, synced lyrics, multi-room, weather and a StandBy clock. Flash it from your browser.

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SphereView is an image viewer, available on Linux.

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TMPlayer is a free, open source, unofficial Telegram media player that plays the videos in your own Telegram chats on Android TV, Fire TV, Android phones, Windows, macOS and Linux, while they are still downloading.

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Lock your screen instantly with a double tap.

Alternative firmware for ESP8266 with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at.

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Tauon is a music player, available on Windows, macOS and Linux: playlists and lyrics display.

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The next-generation Markdown editor and knowledge tool, made for writing with AI. Free and open source for macOS, Windows, Linux, iPhone and iPad.

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An open-source image viewer for Windows with powerful features and ease of use.

TigerPlayer is a high-fidelity, performance-oriented Android music player built for enthusiasts who demand more than just a media playback interface.

Toxen is a highly customizable music player, built for people who wants to manage their music and get more than just an auditory experience from their music collection!

Telegram Group Calls Streaming bot with some useful features, written in Python with Pyrogram and Py-Tgcalls. Supporting platforms like Youtube, Spotify, Resso, AppleMusic, Soundcloud and M3u8 Links.

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VidCom is a video conversion program, available on Linux.

Open-source desktop app to trim, caption, GIF, and download videos from multiple platforms using yt-dlp and FFmpeg.

A multi-functional platform integrating file storage, editing, communication, entertainment and system management.

A dynamic island for Windows — coding cockpit for Claude Code & Antigravity, local-first media, calendar, phone link, focus guard, and offline voice commands. No telemetry, no accounts.

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YMusicV4 is a music player, available on Android.

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Ymir is a console and retro computer emulator, available on Windows, macOS and Linux.

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Yoin Android music client.

YuanPlayer is a simple, customisable media player for HTML5 video and audio.

Free, open-source Emby and Jellyfin client for Windows, Linux and Android TV / Google TV. mpv-powered HDR player, Seerr requests, Live TV with IPTV and EPG guide, TMDB metadata, trailers and a remote-friendly 10-foot UI.

A lightweight document editor combining the simplicity of markdown notes with the power of dynamic spreadsheets.

Configure Raspberry Pi OS (RPi) using Ansible.

Fully offline environmental-intelligence platform for biodiversity monitoring, marine protected area support, and longitudinal pattern discovery.

Backfort is a secure Linux backup and disaster recovery tool for files and Docker Compose. Create encrypted, compressed, verifiable backups with age, GPG, Minisign, rclone, S3-compatible storage, retention policies,…

Home Assistant component to control BeoPlay including TVs, Speakers and others.

Your portable AI memory — preferences, decisions, and corrections that follow you across models, tools, and devices. Zero-dependency, local-first, 85% PrefEval accuracy.

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Local-first AI filmmaking workbench on ComfyUI: consistent characters across every still and clip, plan a Day or a Story, talking clips with kept voices, and a real editor to cut, subtitle and finish the film.

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ClientFence: Secure, open-source billing for hosting & service providers. 100% free. Self-hosted. Your infrastructure, your rules.

A lightweight, context-aware clipboard manager for Windows that feels native to the OS.

Connect ideas and places in a knowledge graph. Designed for both private use and real-time collaboration through networked databases.

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Self-hosted runtime for AI coding agents. Real Linux containers, your hardware, your keys, your data.

Minimal Wayland image viewer with manga mode.

DashCraft: BI dashboards and data models; an open-source, clean-room Power BI file explorer and report renderer, written from scratch in Rust.