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

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Free, open-source, peer-to-peer game save sync — Steam Cloud for every game you own. No accounts, no telemetry.

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Your tasks, your server. An open-source, local-first task manager you can host yourself. Everything you expect from a commercial task app, without the subscription or the lock-in.

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Free, open-source handwritten notes for iPad, built with PencilKit and SwiftUI. A Notability/GoodNotes alternative with no subscriptions, ads or tracking.

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Oxmgr is a modern, lightweight process manager written in Rust, a fast, deterministic alternative to PM2 for managing any executable across platforms.

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Encrypted passwords on printable QR cards. No network, stores nothing.

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A secure, lightweight, and 100% offline password manager.

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Feature-rich YouTube client, simple fast and secure.

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Free, open-source native Apple TV, iOS, and iPadOS app for Jellyfin, Plex, Emby, Silo, and local shares (SMB, NFS, WebDAV, SFTP, FTP).

Powerful note-taking without the hassle.

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The APP part of PreceptorOS: local-first companion — local memory, local inference, zero cloud. Doctrine, contracts and measurement tools.

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End-to-end encrypted notes, tasks, and journal.

Custom firmware for ESP82xx and ESP32 based hardware for home automation and measurement systems.

PuppyGit is a Git client: end-to-end encryption, sync across devices and Markdown support.

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Desktop app for local AI models, workflows, and experimentation.

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QuickImageViewer is an image viewer, available on Windows: hardware acceleration.

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Offline-first PWA that maps who is where, when, and in what condition, for CERT, ACS/ARES, SAR and wildland-fire teams reachable only by voice radio. No server, no account, no Internet once loaded.

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A powerful minimalistic HTTP client.

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Root-based Android app backup tool powered by restic.

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Manage SSH, RDP, and VNC connections.

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[RustyNES] Cycle-accurate Nintendo Entertainment System NES emulator built in pure Rust — 208+ mappers, WebAssembly-ready, GGPO netplay, TAS tools, and RetroAchievements integration for game preservation. "Precise.

SIGVERN RF (formerly OpenRF Platform) — Open-source ESP32-S3 RF gateway with dual CC1101 radios, 433/868 MHz support, protocol decoding, bidirectional RAW learning, MQTT and Home Assistant integration.

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Local-first command center for software projects: tasks, Git, terminals, and coding agents (Claude Code, Codex, Gemini CLI…) in one desktop workspace.

A clean screen capture and recording app.

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Private, offline-first expense tracking directly from bank SMS alerts.

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Free open-source IPTV player with community channels and opt-in analytics.

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Watch live TV and record your favorite shows.

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Turn a private Telegram channel into your personal cloud drive. Android, Windows, Linux and macOS, auto backup, optional E2E encryption, built-in file manager and player.

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Own your Telegram history. Automated, incremental backups with a local web viewer that feels just like the real app. Docker-ready and supports public chat sharing.

TronCut is a screen capture program, available on Windows: read-aloud.

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Self-hosted music streaming platform with Kubernetes, GitOps, CI/CD and OpenSubsonic support.

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Dual-pane file manager: archives, SFTP, SMB, WebDAV, S3, restic, Jellyfin.

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An open-source reimplementation of Ultima Underworld: The Stygian Abyss (1992) in Unity, faithful to the original's rules. Fully playable. Needs the GOG or Steam version; no game data included.

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Full app and data backup and restore as root - KernelSU/APatch/Magisk WebUI. Open successor to Swift Backup, Neo-Backup and Android-DataBackup.

MacOS menu-bar app for fine-grained VPN routing: bypass the VPN for chosen domains/services, force others through it, or (Custom mode) route each domain/subnet out a specific egress — direct, a specific VPN, an…

Eufy, Roborock & Dreame vacuums in Home Assistant — room-by-room cleaning, live map, learning ETAs, saved zones and a custom card.

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Know your network. Discover, scan & diagnose.

Offline-first fiction writing environment. Import a novel, let a local model read it into a story bible, then ask "What if...?": branch the book, rewrite the chapters the change reaches, and check every later scene for…

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Free, open-source, surround bit-perfect music player for Mac. Switches your DAC to every track's native format, plays DSD, Dolby Atmos, TrueHD and DTS, renders surround as Spatial Audio on AirPods, and catches fake…

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Offline music player for Android that shows how each track reaches your headphones.

VR video player for the Steam Frame and Linux SteamVR: smooth 8K HEVC playback, eye-tracked foveated rendering at 120 Hz, passthrough videos, stereo focus for 3D video, and Stash integration.