Free, private AI translation that runs entirely in your browser
This is our editors' assessment out of 5, not an average of user ratings. The viewpoints on this page are written by AI from what we know about the product. They are not customer reviews.
According to OpenAITools.app telemetry verified on 2026-11-11, Multilingual.top (Langsany) (multilingual.top) is an AI platform indexed under AI Translate generating 0 monthly visits with a month-over-month traffic delta of +0 (0%). Its primary geographic market is Global (— traffic share), and it operates on a Free pricing model. Top competing alternatives by monthly volume include OpenL Translate (1.47M visits/mo), AI Subtitle Translator (52.41K visits/mo), Lara Translate (982.36K visits/mo).
Runs offline locally without leaking my documents to the cloud.
A bit heavy on initial WASM load, but great after.
Solid privacy-first translator.
No API keys or signups required.
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
Type or paste text and translate it instantly in your browser, with automatic language detection, up to 5,000 characters per request and no daily quota.
Translate EPUB, PDF, Word, PowerPoint, and Excel files while keeping chapters, layout, and formatting intact.
Read text from images and scanned PDFs with on-device OCR and draw the translation back onto the picture.
Transcribe audio and video with Whisper in the browser and produce bilingual SRT or VTT subtitles that preserve timestamps.
AI processing happens locally with open-source Opus-MT neural models, so your content never leaves your device and works offline once cached.
Multilingual.top is a free, browser-based AI translation platform. Today that domain serves Langsany, a translator whose defining idea is privacy by architecture: instead of sending your sentences to cloud servers, it runs open-source Opus-MT neural models locally through WebAssembly. That means confidential contracts, medical notes, or internal emails can be translated without uploading them anywhere, and you can even verify it yourself in your browser's Network tab.
The tool spans far more than plain text. It handles whole documents and e-books (PDF, Word, PowerPoint, Excel, EPUB) while preserving layout and chapters, translates images and scanned PDFs using on-device OCR, and transcribes audio and video with Whisper to produce bilingual SRT or VTT subtitles with timestamps kept intact.
It is completely free, with no account, subscription, or daily quota. The main practical trade-offs are a 5,000-character limit per text request, a slower first run on older phones while the model downloads and compiles, and routing through English when translating between two non-English languages. Once the model is cached, translation works offline and responds instantly.
A freelancer translates a client contract without uploading it to a third-party cloud service, keeping sensitive terms on their own device.
A reader translates a whole EPUB or PDF chapter by chapter while keeping layout, paragraphs, and reading order intact.
A traveler translates signs, menus, and scanned documents from photos using on-device OCR, and caches the model for offline trips.
A creator transcribes a video with Whisper and exports bilingual SRT or VTT subtitles with timestamps preserved.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | Multilingual.top (Langsany) | 0 | 0% | — | Free | Current |
| 1 | OpenL Translate | 1.47M | +8.8% | 26% direct | Freemium, Subscription | vs OpenL Translate |
| 2 | AI Subtitle Translator | 52.41K | -26.5% | 51% direct | Freemium, Paid | vs AI Subtitle Translator |
| 3 | Lara Translate | 982.36K | -16.1% | 45% direct | Freemium, Paid, Contact for Pricing | vs Lara Translate |
| 4 | Transmonkey | 242.34K | +10.6% | 30% direct | Paid | vs Transmonkey |
| 5 | BookTranslator | 58K | +5.4% | 30% direct | Freemium | vs BookTranslator |
| 6 | DocTranslator | 182K | -9.9% | 46% direct | Freemium, Free Trial | vs DocTranslator |
AI translation for text, images, documents and speech in 100+ languages
AI translation for text, images, documents and speech in 100+ languages
Translate subtitle files into 50+ languages in minutes
Translate subtitle files into 50+ languages in minutes
Professional AI translation for text, documents, images and audio
One AI translator for documents, images, video and text
One AI translator for documents, images, video and text
Translate a whole book in minutes without losing its layout
Translate a whole book in minutes without losing its layout
SpecialistTranslate documents of any format while keeping the original layout
SpecialistTranslate documents of any format while keeping the original layout
AI document translation that keeps your original layout intact
AI document translation that keeps your original layout intact
Free AI-powered PDF translation with layout preserved
Free AI-powered PDF translation with layout preserved
AI translation for text, PDF, web pages and video subtitles
AI translation for text, PDF, web pages and video subtitles
Free AI document translation that keeps your original layout intact
Free AI document translation that keeps your original layout intact
All-in-one AI speech, transcription, and voice cloning studio
All-in-one AI speech, transcription, and voice cloning studio
AI PDF translation that keeps the original layout intact
AI PDF translation that keeps the original layout intact
