Translation that stays with you.
LangsAny exists because of one conviction: you shouldn't have to hand your words to a server to get them translated. So we moved the translator itself — open-source AI models, running in your browser, on your device.
Every mainstream translation site computes in the cloud: your text is uploaded, processed in a data center, and returned. That design forces three compromises — your content leaves your control, every request costs the provider money (so you get limits), and no connection means no translation.
LangsAny inverts it. A compact neural translation model is downloaded to your browser once, cached, and runs locally from then on. Private, free, unlimited, and offline-capable are not four features we added — they are four consequences of a single architectural decision about where the computation lives.
Translation runs in your browser. Your text never reaches a server — not because we promise, but because no upload path exists.
Your device does the computing, so we have no per-request costs. No character caps, no quotas, no account, and no advertising.
Models are cached on your device. Once prepared, translation works with no internet connection at all.
Where we are today
The translator supports 26 languages fully on-device (with Chrome's built-in translation AI extending coverage further), streams results sentence by sentence, detects the source language locally, and keeps working offline once a language pair is cached. In addition to text translation, we provide a dedicated on-device PDF Translator featuring bilingual side-by-side comparison and direct overlay rendering. Everything is completely free and private, with zero advertising on the site, no user accounts, and zero data uploaded.
Where we're going
The same local-first architecture extends far beyond text. In rough order:
PDF translation
LivePDFs are parsed in the browser and read three ways: translation only, side by side with the original, or drawn over the rendered page — entirely on your device.
Word, PowerPoint, Excel and EPUB
LiveOffice files and e-books are unpacked in the browser, translated paragraph by paragraph, and rebuilt with their formatting intact.
Images, screenshots and scanned PDFs
LiveText in photos, pasted screenshots and scanned PDF pages is read with on-device OCR and translated — no image is transmitted to the cloud.
Speech to subtitles, and text to speech
LiveRecordings and videos are transcribed with Whisper running in your browser and turned into bilingual subtitles; translations can be read aloud or saved as audio.
200 languages with NLLB-200
In progressA single on-device fallback model (Meta AI’s "No Language Left Behind") covering 200 languages — from Swahili to Tamil to Icelandic.
Installable app (PWA)
PlannedThe site already works offline after one visit. Next: add-to-home-screen install and an explicit "download for offline" language pack manager.
One promise holds for every item above: it ships on-device or it doesn't ship. We will never quietly route your documents, images, or audio through a cloud API.