Document Localizer is a free, open-source desktop application for translating and
localizing PDF and Markdown documents between 100+ locales (English US, UK, AU, CA;
Spanish ES, MX, AR; Portuguese PT, BR; French FR, CA; German DE; and many more) using
local AI models. It runs entirely on your machine via Ollama, LM Studio, or llama.cpp.
Your documents never leave your computer.
Key Features
- 100% offline document translation between 100+ locales
- Privacy-first: nothing leaves your device
- Works with any OpenAI-compatible local model (Llama 3, Mistral, Phi, Gemma, Qwen)
- PDF and Markdown input and output
- Side-by-side diff review with paragraph-level approve or reject
- Cross-platform: macOS, Windows, and Linux
Download
Download Document Localizer for macOS, Windows, or Linux
Source Code
View the project on GitHub