EPUB Viewer — Read EPUB eBooks Online, Free
Open an .epub eBook and read it chapter by chapter directly in your browser — no e-reader app, no account, no upload.
1. Choose or drop a file
2. View instantly
3. Download when done
What this viewer does
- Chapter-by-chapter navigation from the book's table of contents
- Adjustable reading font size
- Book metadata: title, author, cover
- Keyboard next/previous chapter navigation
- Reading position kept only in this browser tab — nothing saved remotely
How it's rendered
Custom renderer (JSZip + sandboxed iframe). Unzips the EPUB package locally and renders each chapter's XHTML in a sandboxed frame for safety.
Nothing about this file is ever sent to a server — open your browser's DevTools Network tab while using this viewer and you'll see no request carrying your file's contents.
100% Private
Files never leave your device. There is no server that ever receives your file's contents.
No Uploads
Every format is decoded and rendered locally via WebAssembly or JavaScript. Open your browser's Network tab and confirm nothing is sent.
No Storage
Nothing is written to a server or database. Memory clears the moment you close or reload the tab.
GDPR-friendly by design
There's no file data collection to comply with in the first place — no account, no tracking of file contents, no analytics on what you view.
EPUB viewer — FAQ
Is my eBook uploaded anywhere?
No — the EPUB (a ZIP of XHTML files) is unzipped and rendered entirely in your browser.
Are DRM-protected EPUBs supported?
No, DRM-protected books can't be opened by any browser-based tool; only DRM-free EPUB files work.
Can I bookmark my place?
Your chapter position is kept only for the current tab/session — reload and start from the table of contents again.
Is content sandboxed for safety?
Yes, each chapter renders inside a sandboxed iframe so embedded scripts or styles in the EPUB can't affect the rest of the site.
Does it work offline?
Yes, once loaded once, install the site as a PWA to keep reading offline.