Private · free · no sign-up
Open any document,
right in your browser.
Word, Excel, PowerPoint, eBooks, PDFs, spreadsheets, code and more. Your files never leave your device.
Drop a file to open it
Word, Excel, PowerPoint, EPUB, PDF, Markdown, CSV, JSON, ZIP and more
Opens on your device. Nothing is uploaded.
14 kinds of files, 90+ extensions
Never uploaded
Your file is opened by code running in this page. It never travels to a server — not ours, not anyone’s.
Works offline
After your first visit DocuFun keeps working with no connection. Try it in airplane mode.
No sign-up
No account, no email, no cookies, no tracking. Open a file and read it. That’s it.
From the makers of DocuFun
Need to edit, sign or merge PDFs?
PdfNext has free PDF tools that work the same way: right in your browser, with nothing uploaded. Try PdfNext.
- Merge, split and rotate PDFs
- Compress PDFs for email
- Protect or unlock with a password
- Turn images into a PDF
Questions
Is DocuFun really free?
Yes. The website is free with no limits on how many files you open.
How can it open files without uploading them?
Modern browsers can read a file you choose directly. DocuFun’s viewer is written in JavaScript that runs on your device, so it unpacks and draws the document locally. You can check: open your browser’s network panel and you will see no upload.
Which formats are supported?
Word (DOCX), Excel (XLSX), PowerPoint (PPTX), OpenDocument (ODT, ODS), RTF, EPUB eBooks, PDF, Markdown, CSV and TSV, JSON, XML, plain text and 40+ code types, ZIP archives and common images.
Can I save a document as PDF?
Yes. Open it, press Print, and choose “Save as PDF”. Only the document is printed, not the page around it.
Does it work on my phone?
Yes — on any modern phone, tablet or computer, in the browser you already use.