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>log in to commentA free local-first Markdown workspace with live preview, GFM, 190+ code languages, KaTeX math, Mermaid diagrams, and MD/HTML/PDF/PNG export. No sign-up required, and documents are never uploaded to a server database. Try it free: https://markdownviewer.org/
Free in-browser AI translator that runs locally, offering offline, private translation of text, documents, images and audio.
- for
- Developers and users needing secure, offline translation without data uploads
- pricing
- free
Key features
- Offline translation — Download a compact model once and translate text without an internet connection.
- Zero data upload — All processing happens locally in the browser, so your text never leaves the device.
- Document & media support — Translate PDFs, Office files, subtitles, images and audio/video with on-device OCR and Whisper.
- Multi-language support — Supports 26+ languages and can route non-English pairs through English using local models.
- No account or limits — Unlimited translations up to 5,000 characters per batch with no sign-up or quotas.
- Open-source models — Uses Helsinki-NLP Opus-MT models executed via WebAssembly (Transformers.js).
Use cases
- Translate confidential contracts on a laptop without internet
- Localize product documentation PDFs while preserving layout
- Create bilingual subtitles for videos directly in the browser
Multilingual.top FAQ
Is the translator really free?+
Yes, it is completely free with no usage limits, accounts, or subscriptions.
Can I translate files like PDFs or Word documents?+
Yes, you can drop PDFs, Word, PowerPoint, Excel, EPUB and other supported files and receive the translated version in the same format.
How is my data kept private?+
All translation runs in your browser using WebAssembly, so no text is sent to any server; you can verify this in the DevTools network tab.
What are the size limits for files?+
Up to 30 MB for PDFs, 40 MB for Office files, 12 MB for images, and 200 MB for audio or video, limited by your device’s memory.
Does it work on mobile devices?+
Yes, modern mobile browsers can run the translator offline after the model is cached.
What technology powers the translations?+
Open-source Opus-MT neural machine translation models executed via Transformers.js, with Whisper for on-device speech transcription.
Summarized by DevHunt from multilingual.top · Sep 28, 2026. Details may change; check the official site.
