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

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An open-source, cross OS, community-driven launcher. A lightweight alternative to Spotlight and Raycast. Made with ❤️ from Viet Nam 🇻🇳.

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Free, open-source screenshot and screen recording app for macOS: capture, annotate, add backgrounds, and record MP4 or GIF. A native CleanShot X alternative.

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Lightweight Knowledge Base and Feed Reader.

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One private place for everything on your mind. Capture it, write it, plan it. Notes, tasks, inbox and journal, end-to-end encrypted.

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Free, open source Mac menu bar app: command palette, clipboard history (⌘⇧V), window manager, screenshots, system monitor, meeting recordings with AI minutes and a searchable screen memory, all with on-device AI.

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Free, open-source visual Git client for macOS, Windows and Linux. Wraps your own git binary - no reimplementation, no account, no licence server.

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A self-hosted meal planner for households: recipes, a weekly plan, shopping lists, a pantry and store connections, with an optional AI assistant on your own key.

🔐 Local-first, decentralized desktop messenger with end-to-end encrypted chat and file sharing. Works offline on your LAN and across reachable networks, with optional peer-operated relays.

mewu_ai is a screen capture program, available on Windows: text recognition (OCR).

Fast, GPU-accelerated image viewer for Windows 11. Supports HEIC, AVIF, RAW, AI-generated image metadata, and more.

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Bare-metal Neo Geo emulator for Raspberry Pi 3 and 4: no OS, boots straight into the game, low input lag. MVS and AES.

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NeoGeo (Neo Geo) emulator for Nintendo 3DS: converts MAME romsets to installable CIAs, full speed on Old 3DS.

Lightweight, self-hosted network diagnostic toolkit in an 8.5MB Go container. Globalping distributed probes, native DNS/RDAP, and zero disk dependencies.

Zero-Knowledge E2EE Post-Quantum Messenger. Anonymous architecture, no PII, powered by Signal Protocol SPQR & WebAssembly.

A macOS window switcher — an alternative to the system Cmd+Tab.

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Consent-first email on your existing IMAP mailboxes. Optional AI assistet screener with local or Cloud models. Full local Clients for MacOS, Windows, Linux + Arch and Omarchy integrationst.

Screen recordings that look great: a screen recorder and editor for Omarchy with a synthetic cursor, auto zooms, and a camera bubble.

A self-hosted, AWS-compatible cloud for your own hardware. Point the AWS CLI, SDKs, CloudFormation and Terraform at it to run Lambda, S3, RDS & SQL Server, DynamoDB, EC2-style VMs, IAM, Step Functions and 25+ AWS…

An open-source clone of Paint.NET (paint.net) for Linux — a C++/Qt6 image editor with layers, effects and adjustments. Contributions welcome.

Nextcloud app: Paperless-ngx OCR full-text search in Nextcloud's unified search, with no extra index; results open in the Nextcloud viewer.

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A quiet brain for your loud apps — a local-first second brain; nothing leaves your machine.

Local Linux application and project launcher with a GTK palette, web workspace and terminals.

Proton-Autogen is a lightweight Linux utility that automatically launches Windows .exe files using Proton or Wine, with automatic fallback and file manager integration (Nautilus & Nemo).

A notch tool for the Mac: tray, clipboard history, live activities and quick tools that grow out of the notch. Native, built in Go.

Open-source Reflect rewrite: A local-first AI agent-friendly Markdown note-taking app.

Self-hosted AI assistant with voice satellites, 100+ tool integrations, RAG knowledge base, and full offline capability. Built with FastAPI + React + Ollama.

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Robrix: a powerful multi-platform Matrix chat client written in Rust, using the Makepad UI toolkit and Robius platform abstractions.

Cross-platform, lightweight clipboard manager written in Rust and GPUI.

Row-Bot - Personal AI Sovereignty. A local-first AI assistant with integrated tools, a personal knowledge graph, voice, vision, shell, browser automation, scheduled tasks, health tracking, and messaging channels.

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A fast DOS and Windows 9x Emulator with VR support, comprehensive sound (SB16, GUS, MT32 etc), graphics (Hercules/CGA/EGA/VGA/SVGA/S3/Voodoo etc.) and networking support, written in Rust.

Rust Hover Preview is a Windows 11 tray app inspired by QTTabBar and QuickLook. Hover over a file in File Explorer for an instant preview, or press Space to open a pinned preview window.

A high-performance, minimal, borderless, and feature-rich image and video viewer for Windows. Inspired by Google Picasa.

Self-hosted DAST (dynamic application security testing) in one Docker image — OWASP ZAP, nuclei, katana, httpx and dalfox behind a Nuxt UI: authenticated SPA crawling, OpenAPI-driven active scans, per-engine reports…

🥄 scoop 🪣 bucket for 🎮 console emulators and 🕹 arcade games.

Make any Bluetooth speaker smart. DIY multi-room audio with Music Assistant, Home Assistant AI automations & Sendspin protocol. Docker, HA addon, Raspberry Pi, Proxmox LXC. Free & open-source.

A cross-platform, keyboard-driven minimal launcher like Alfred/Raycast.

Sidemark is a lightweight PDF annotator for Linux with a live Markdown notes panel. Open a PDF draw directly on it, and write structured notes beside it.

A markdown editor — and the bridge to your LLM. Local-first, MIT, ~15 MB. Bundled MCP server lets Claude Code / Codex / Cursor drive your vault directly. 14 AI providers BYOK.

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strata is a file manager, available on Linux.

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Self-hosted study organizer — calendar, exam/study planner, focus timer, notes, and progress dashboard. Built with Blazor WASM + ASP.NET Core (.NET 10); passkey login, 26 languages, optional Home Assistant integration.