Offline First GitHub Repositories (2026) · Open Source Tools

Local-first platform and TypeScript library

Offline, serverless, end-to-end-encrypted mesh messenger for Android — runs Wi-Fi Aware and Bluetooth LE simultaneously, with no servers required and no Google Play Services.

High-performance Rust TUI Pokedex & Evolution Analyzer. Fetches PokeAPI data asynchronously, parses complex branch trees, and renders pixel-art sprites.

Offline-first workout tracker for strength and cardio, with progress graphs, rest timers, and custom themes. Built with Flutter.

A lightweight, local-first Markdown note app for Android.

A modern SCORM JavaScript runtime library.

Type-safe tools, on-device inference, multi-agent workflows, memory, and guardrails, in one Swift-native runtime

Free, open-source chemical drawing for Mac, Windows and Linux. Opens and saves ChemDraw files (CDXML, CDX). Works offline.

TagSpaces is an offline, open source, document manager with tagging support

A soulful, production-grade PDF reader for Android featuring a "Warm Paper" aesthetic, gesture-driven interface, and a high-performance modular architecture. Built with Kotlin 2.0 and Jetpack Compose

A browser-based video editor powered by ffmpeg.wasm. No uploads, no servers -- all processing happens locally in your browser using WebAssembly.

Adaptive native Nextcloud client for mobile and desktop, with dynamic support for the wider Nextcloud app ecosystem.

A SDK/library for decentralized web and distributing computing projects

Offline, encrypted vault for seed phrases, private keys, passwords and API keys. macOS and Windows.

:ledger: An offline capable Notepad PWA

Google Keep-style notes for iOS, Android, and self-hosting. Offline-first, with optional sync.

Create high-fidelity Codex companions from 2+ photos with local open-weight neural editing and no OpenAI API key.

Ground mobile data collection app for Android

Long-term memory for any AI agent. One Rust binary, offline, 98.2% recall@5 on LongMemEval-S. Self-host free or use Uteke Cloud.

Doska is a clean, local-first kanban app with a Markdown editor and optional sync to a folder or server.