Native App GitHub Repositories (2026) · Open Source Tools

Build smaller, faster, and more secure desktop and mobile applications with a web frontend.

Monitor all your Claude/Codex usage limits in real-time from your macOS menu bar - supports 5-hour, 7-day, extra usage, 7-day Opus and 7-day Sonnet quotas.

Lightning-fast native macOS Markdown viewer. Opens .md files instantly: live preview with your editor, GitHub alerts, LaTeX math, Mermaid diagrams, themes and fonts, reading mode, vector PDF export, per-window zoom. SwiftUI + AppKit, zero dependencies. Free on the Mac App Store and Homebrew.

Native Markdown reader for macOS. Keep it open while you write and it follows every save. Comment on a phrase and the note is saved into the .md file itself. Your coding agent can open a plan here and wait while you mark it up.

A small, fast code editor written in Go, with a native GPU-drawn UI (no webview, no Electron)

A fast, native, keyboard-driven database client for macOS. 20 databases, an AI assistant that shows its work, free and open source.

A native macOS kanban board for mattpocock/skills tickets. Live agent sessions with their steps and changed files, read-only, free and open source.