Tools
Free EPUB & PDF tools
Client-side · No upload · No account
Small, single-purpose tools for the questions that come up before a book is worth importing. Each one reads the file with JavaScript in your browser tab: nothing is uploaded, nothing is stored, and they keep working with the network off.
EPUB & PDF DRM CheckerWill this book open? DRM, text layer, form fields, fixed layout — read from the file itself.EPUB Metadata EditorFix a wrong title, author or cover and download the corrected file. No upload.EPUB ValidatorThe book won't open. Find out whether it's the archive, the package document or a missing chapter.EPUB Reading TimeWord count, page equivalent and how many hours the book takes at three paces.Kindle DRM CheckerIs this AZW, AZW3 or MOBI locked to Amazon? One flag in the header decides.Kindle Highlights to AnkiMy Clippings.txt → a flashcard deck or Markdown quotes. Duplicates merged, notes attached.PDF Text Layer CheckerCan this PDF be highlighted and searched, or is it a stack of scans?GemList BuilderBuild a shareable catalog of free books for the in-app library browser.