About DocuFun

Someone sends you a file. You just want to read it. You shouldn’t need an office suite, an account, or to upload a private document to a stranger’s server.

DocuFun opens it — instantly, on your own device. It reads Word, Excel, PowerPoint, OpenDocument, RTF, EPUB, PDF, Markdown, CSV, JSON, XML, text, code and ZIP files, and everything happens inside your browser.

Made by NextOne Labs

DocuFun is built by NextOne Labs LLC, a small studio making clean, useful apps. Our sister product PdfNext focuses on PDF tools.

How it’s built

Every viewer on this site is hand-written: no third-party code, fonts or trackers. That keeps it fast, private and fully under our care.