3,000 credits
¥9.9
Up to approx. 750 translated pages
Buy credits
Version 1.07 · now on macOS
OmniDoc: document translation and a free AI office suite
Translate PDF, Word, PowerPoint and 11 more formats into 38 languages with tables, formulas and images kept in place. Plus four free editors for documents, spreadsheets, slides and images that work offline.
OmniDoc Translate
Translate whole documents, keep the layout
Upload a file, choose the languages and a model, and download the translated file, with the layout, tables, formulas and images where they were.
Upload a file to start translating
Drag & drop files here, or Browse files
Supports PDF, DOCX, PPTX, XLSX, CSV, EPUB, TXT, MD, HTML, SRT, ASS, JPG, PNG and UDOC
Common
Auto Detect
简体中文
English
日本語
한국어
Asia
繁體中文
粵語
ไทย
Tiếng Việt
Bahasa Melayu
Bahasa Indonesia
Filipino
ភាសាខ្មែរ
မြန်မာ
हिन्दी
বাংলা
தமிழ்
తెలుగు
मराठी
ગુજરાતી
اردو
བོད་སྐད
Монгол
Қазақша
ئۇيغۇرچە
Middle East
العربية
فارسی
עברית
Türkçe
Europe
Français
Deutsch
Español
Português
Italiano
Nederlands
Русский
Polski
Čeština
Українська
Common
简体中文
English
日本語
한국어
Asia
繁體中文
粵語
ไทย
Tiếng Việt
Bahasa Melayu
Bahasa Indonesia
Filipino
ភាសាខ្មែរ
မြန်မာ
हिन्दी
বাংলা
தமிழ்
తెలుగు
मराठी
ગુજરાતી
اردو
བོད་སྐད
Монгол
Қазақша
ئۇيغۇرچە
Middle East
العربية
فارسی
עברית
Türkçe
Europe
Français
Deutsch
Español
Português
Italiano
Nederlands
Русский
Polski
Čeština
Українська
Basic Models
XiRang XR-397B
Privacy Safe
DeepSeek
Qwen
ChatGPT
Gemini
Claude
- 14 file formatsPDF, Word, PowerPoint, Excel, CSV, EPUB, TXT, Markdown, HTML, SRT/ASS subtitles, JPG/PNG images and UDOC.
- 38 languagesTranslate between any of them: Chinese, English, Japanese, Korean, French, German, Spanish, Russian, Arabic and more.
- Bilingual or translation onlyKeep the original and the translation together to review paragraph by paragraph, or get the translation alone.
- GlossariesFix how specialist terms are translated and keep them consistent across the whole document.
- Scans tooText in scanned pages and images is read with OCR first, then translated.
- Your choice of modelPick XiRang XR-397B, DeepSeek, Qwen, ChatGPT, Gemini or Claude before you translate.
Supported models
XiRang XR-397B
DeepSeek
Qwen
ChatGPT
Gemini
Claude
Used by students and researchers at Tsinghua University, Peking University, MIT and other universities
Supported Formats
From research papers to contracts and product documentation — translate common document formats with full layout preservation.
14 Formats
Continuously Updating
Documents & Layout
Data & Spreadsheets
Code & Development
Media & Subtitles
PDF documentStandard and scanned
Excel (XLSX)Spreadsheets
MarkdownTechnical documents
SRT / ASSVideo subtitles
Word (DOCX)Professional documents
CSV dataTabular text
JPG / PNGImage OCR
EPUB / e-booksDigital publications
PowerPointPresentations
HTMLWeb pages
TXTPlain text
UDOCUniDoc documents
Translation Preview
Products
One account for every OmniDoc product
The editors run on your computer and your files stay there. Sign in only for translation, AI and web publishing.
Office editors · work offline
Works offlineUniDocDocumentsWrite and lay out documents, import and export DOCX, Markdown and HTML, and save as native UDOC.Open
Works offlineUniCellSpreadsheetsEnter data and formulas, then calculate, filter and organize. Works with XLSX and CSV.Open
Works offlineUniPPTPresentationsImport PPTX, edit text, shapes and equations, and present right in the browser.Open
Works offlineUniPicImagesCrop, adjust colors and annotate, and add text and shapes. PNG, JPG, WEBP and SVG.Open
AI and translation
Online serviceOmniDoc TranslateDocument translation14 formats including PDF, Word and PPT, 38 languages, original layout preserved.Open
Online serviceAI HumanizerMake AI text read humanEstimates the AI score the way CNKI and VIP checkers measure it, rewrites paragraph by paragraph so the text reads naturally, and writes the result back into your Word layout. 5 free checks a day.Open
Online serviceBrowser extensionWeb page translationTranslate the current page in Edge and Chrome and read it side by side with the original.Open
Mail, websites and developers
Online serviceUniMailMailSend and organize email, and open attachments in the workspace to keep editing.Open
Online serviceOmniwing StudioWebsites & contentBuild websites with AI, edit pages visually, and manage site and blog content.Open
DevelopersDeveloper APIAPI & AI toolsTranslate and process documents in bulk over a REST API. AI assistants can create, edit and publish documents through OmniDoc.Open
- Open and editOpen local files from the workspace, or choose “Open with OmniDoc” in your file manager.
- Saved on your computerDocuments, spreadsheets, slides and images stay on your device. No forced upload and no sign-in for local editing.
- Publish and sharePublish HTML, Markdown, PDF, Word or UDOC as a public web address, send it with UniMail, or translate it with OmniDoc.
Download OmniDoc for desktop
Installers for Windows 10/11, macOS 12 or later and Ubuntu 22.04, with SHA-256 checksums. On Windows you can also install from the Microsoft Store.
Screenshots and video
See what OmniDoc looks like in use
These screenshots come from the UniDoc and UniCell web editors, the same editors built into the desktop app. The translation shot is a bilingual Word file made by OmniDoc and opened in UniDoc.
OmniDoc Desktop 1.07: a free office suite every AI can use
OmniDoc Desktop in 56 seconds: open and edit Word, Excel, PowerPoint, PDF and Markdown for free, publish documents as web pages, and let AI assistants create and edit files through OmniDoc.
OmniDoc on YouTubeTranslate documents, keep the layout
Upload papers, contracts and product manuals with complex layouts and translate them as they are
Multi-Engine Translation
Choose an engine before you translate: XiRang XR-397B, DeepSeek, Qwen, ChatGPT, Gemini, Claude.
Multi-Format Support
PDF, Word, PPT, Excel, CSV, images, ebooks, Markdown, HTML, subtitles — 14 formats supported, upload and translate.
Smart OCR
Recognizes text in scanned documents and images. Supports extracting and translating text embedded in PDF images.
API and MCP
Scripts translate in batches through the REST API; AI assistants such as Claude and Cursor create, edit, translate and publish documents through MCP.
Glossary Support
Upload a glossary to define how specific terms should be translated. Applied automatically to ensure consistent terminology.
Bilingual View
View original and translated text side by side for quick proofreading.
OmniDoc desktop: free and works offline
One app for Word, Excel, PowerPoint, PDF and Markdown files.
Every Office file, rendered as HTML
Word, Excel, PowerPoint, PDF and Markdown open, edit and present in a web engine. Export lossless HTML and publish it as a link in one click.
Free to use
Downloading, installing, local editing and format conversion are free and need no account. Only cloud services such as translation use credits, based on actual usage.
Faster
Native engines run on your computer: about 9 ms from keystroke to layout, 11 s to export a large Word file, about 1 s from PDF to HTML.
Interactive documents
Put charts, animations, flowcharts and formulas right in the document. Published as a web page they stay interactive, and AI can create them in one go.
Buy credits
One-time purchase. No expiry. Top up anytime.
10,000 credits
¥29.9
Up to approx. 2,500 translated pages
Buy credits25,000 credits
¥69
+8% bonus credits
Up to approx. 6,250 translated pages
Buy credits50,000 credits
¥129
+16% bonus credits
Up to approx. 12,500 translated pages
Buy credits125,000 credits
¥299
+25% bonus credits
Up to approx. 31,250 translated pages
Buy credits450,000 credits
¥999
+35% bonus credits
Up to approx. 112,500 translated pages
Buy creditsPurchase & usage details
- Buy again anytime
- Buy the same pack again anytime. Credits are added to your balance.
- No expiry
- These credits never expire and require no renewal. Existing orders keep their original terms.
- Translation estimate
- Page counts are estimates. Credits are charged for actual task usage.
- How credits are charged
- Before a task starts we only check that your balance meets the minimum. When it finishes, the actual usage is charged; any shortfall is recorded as a balance owed, and credits you add later settle it first.
From the Blog
Hands-on notes on PDF, OCR and document translation
Frequently Asked Questions
OmniDoc supports 14 formats: PDF, Word (.docx), PowerPoint (.pptx), Excel (.xlsx), CSV, images (JPG/PNG), ebooks (EPUB), plain text (TXT), Markdown (.md), HTML/HTM, subtitle files (SRT/ASS) and UDOC (.udoc).
Yes. The translation follows the original page: headings, paragraphs, tables, images and formulas stay where they were, and font size and line spacing adjust to the length of the translated text. Scanned pages are read with OCR first.
Free accounts receive free credits every day. When you need more, buy a one-time credit pack at any time — there is no subscription or automatic renewal, and purchased credits never expire.
Create an API key in your account and upload files through the REST API; batch jobs are supported. AI assistants can call OmniDoc directly through MCP. See the API documentation.
OmniDoc supports 38 languages including Chinese, English, Japanese, Korean, French, German, Spanish, Arabic, and more.
We take privacy seriously. Your files stay in your library until you delete them, and are used only to provide the service to you.
Windows 10/11 (x64), macOS 12 or later (Intel; Apple silicon Macs run it through Rosetta 2) and Ubuntu 22.04 (x64). On other systems, use the web app.
Yes. The document, spreadsheet, presentation and image editors in the desktop app run on your computer: opening, editing and saving need no internet connection and no sign-in. Translation, AI and web publishing need a connection.