Multilingual GitHub Repositories (2026) · Open Source Tools

Non-autoregressive System 1 decision engine. Typed choice, score and yes/no decisions over any text in a single forward pass, in 100+ languages, with a router that picks the right checkpoint per request.

Generate audiobooks from e-books, 50+ TTS engines with voice cloning and 1696 languages!

A multilingual morphological analysis library.

The most comprehensive universal, multilingual, and monolingual dictionaries—perfect for e-readers, phones, tablets, and desktop apps. Powered by Wiktionary.

A fast, extensible desktop translation suite. Translate, OCR, TTS, spell check — with a plugin system.

A multilingual YouTube Music frontend for Android, focused on performance, UI/UX refinements, feature expansion, and long-term support.

Automated book download manager for Usenet. Monitor authors, search indexers, download via SABnzbd, and organize your library. The modern replacement for Readarr.

Pretrained text classifiers you can run and retrain on CPU

Multilingual neural TTS (6 languages: JA/EN/ZH/ES/FR/PT, code supports SV) — C++, C#, Rust, Go, Python, npm (WASM). VITS + Prosody, streaming, CUDA/CoreML/DirectML. pip install piper-plus | npm install piper-plus | cargo install piper-plus-cli

A practical lab for building, testing, and evaluating apps with Apple's Foundation Models framework.

Per-component Internationalisation solution for JS application. Type-Safe. Translate with AI. Edit Visually.

Dayon! - A cross-platform remote desktop assistance solution for your family and friends

WordPress Plugin: Multisite Language Switcher

An electronic data capture platform for administering remote and in-person clinical instruments

Battles for might, land and glory.

Classify text in PHP without an LLM bill: typed decisions in 100+ languages, self-hosted. Laravel-ready SDK for Laya, a Jev AI alternative.

✨ Multilingual AI product copy from images. Responsive writing studio, translation, accounts, credits and automatic setup with optional Docker MySQL.

A local, zero-dependency prose, copywriting, UI-text, and code-comment linter that flags stiff, AI-sounding writing (stock phrases, flat sentence rhythm, repeated wording) and tells you what to revise. Includes 8 language packs. A style checker, not an AI detector.

🧿 Bolt core

A self-hosted, resource aware file conversion server supporting 490+ formats in 26 languages.