EPUB Editor
Change the cover, title, author, series and tags of an EPUB, shrink its images, or merge several books.
Free, no uploads, no sign-up. Runs 100% in your browser.
How EPUB Editor works
The EPUB package is edited in place with JSZip, so chapters, fonts and styles stay untouched. Merging reads each book and writes a new EPUB with a combined table of contents.
Input: EPUB, MOBI, AZW3, FB2. Output: EPUB.
How to use EPUB Editor
- Open EPUB Editor and add your file or input.
- Pick the options you need. Everything runs on your device.
- Press the main button and download the result.
Tips
- Nothing is uploaded. Your files stay in this browser tab.
EPUB Editor FAQ
- Are my files uploaded?
- No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
- Is it free? Are there limits or watermarks?
- Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
- Does it work offline?
- Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.
Related tools
- E-book Converter: Convert EPUB, MOBI, AZW3, FB2, CBZ, DOCX, PDF, TXT and more to EPUB, PDF, Word, HTML, TXT, Markdown or FB2.
- E-book Reader: Read EPUB, MOBI, AZW3, FB2 and CBZ comics in your browser with themes, search and a table of contents.
- Comic Converter: Convert CBZ, CBR, CB7 and PDF comics to PDF, CBZ, CB7 or images, and shrink big comics.