Documents
Translate a document
Word files, subtitles, spreadsheets and plain text — the formatting comes back the way you sent it. How it works →
Translating documents with the formatting kept
Drop a Word file, a presentation, a spreadsheet, an EPUB or a subtitle file and the translation comes back in the same format, with its headings, tables, lists, footnotes and styles where you left them. Nothing is flattened into plain text and rebuilt by hand afterwards.
That is the part most translation tools get wrong. Pasting a contract into a text box loses its numbering; exporting to plain text loses the table that carried the figures. Here the file structure is preserved and only the text inside it is replaced, which is why a translated document is usually ready to send rather than ready to re-format.
What happens to your file
The file is opened in your browser, its text extracted, translated sentence by sentence on this machine, and written back into a new copy. The original is untouched and neither copy is uploaded, so a long or sensitive document is no different from a short one.
Each sentence is checked for the failures that change meaning rather than style: a dropped negation, a changed number or amount, a missing name, a shifted date. Anything the checks could not settle is shown to you rather than hidden.
Why it runs on your device
The engine and the language pack download once and then run locally, for all 66 languages. Nothing you translate is sent anywhere — not the easy sentences and not the hard ones, because the server path was removed in August 2026 and there is nothing behind this page to send them to. You can check that by turning the network off and translating anyway. The privacy model says exactly what does and does not leave the machine.
Related tools
- Translate a PDF — including scanned ones
- Translate text — paste a passage instead
- Review and edit — sentence by sentence, before you deliver
Common questions
- Which file formats are supported?
- Word (.docx), PowerPoint (.pptx), Excel (.xlsx), EPUB, XLIFF, RTF, subtitles (.srt, .vtt), and plain formats: .txt, .md, .csv, .html. PDFs have their own page.
- Is the formatting really preserved?
- Yes. The document structure is kept and the text inside it is replaced, so headings, tables, lists, footnotes and styles survive. A translated file opens in the same program as the original.
- Is my document uploaded?
- No. It is read and translated in your browser or app, on your own machine. There is no server path for document content.
- How large a document can it handle?
- Large ones work; very large documents are faster in the desktop app, which is not limited by a browser tab. Free accounts have a page allowance, shown before a run starts.
- Can I keep the original alongside the translation?
- Yes. A bilingual output puts the two side by side, which is what reviewers usually want.