Free ePub File Renamer
Rename ePub files by metadata instantly. Bulk rename eBooks with Author - Series - Title naming. Free, private, and 100% browser-based - no upload required.
Drop EPUB files here or click to browse
You can upload multiple files at once
How to Rename ePub Files
Renaming ePub files by hand is tedious. Our free ePub renamer reads the metadata already embedded inside each book and generates clean, consistent filenames in seconds. Here's how it works:
- Upload your ePub files. Drop files into the upload area or click to browse. Bulk upload dozens of books at once.
- Review extracted metadata. The tool reads title, author, series, publisher, ISBN, and language from each ePub's OPF manifest.
- Choose a naming pattern. Use tokens like
{author},{title},{series}, and{seriesIndex}to build your perfect filename format. - Download renamed files. Grab individual files or a ZIP archive. Everything stays in your browser.
Bulk ePub Renaming
If you have a library of hundreds of eBooks with messy filenames like book1_final_v2.epub, bulk renaming is essential.
This tool handles unlimited files in one batch, applying the same naming pattern across your entire collection.
Unlike desktop apps such as Calibre, there is no installation, no library database to manage, and no learning curve. Just open the page, drop your files, and download the results.
ePub Metadata Renamer
ePub files store rich metadata in the OPF (Open Packaging Format) file. Our renamer extracts:
- Title - the book's name
- Author / Creator - primary author or editor
- Series & Series Index - for organizing multi-book sagas
- Publisher - useful for academic or professional libraries
- Language - great for multilingual collections
- ISBN / Identifier - for cataloging and lookup
- Publication Date - sort by year of release
You can mix and match any of these fields into a custom filename pattern that suits your collection.
Rename eBooks by Title or Author
The most common use case is sorting eBooks by author or title. With this tool, you can create filenames like:
Isaac Asimov - Foundation - 01.epubProject Hail Mary - Andy Weir.epubJ.K. Rowling - Harry Potter - 3 - The Prisoner of Azkaban.epub
Because the tool processes everything client-side, you can experiment with different patterns instantly without waiting for a server response.
Frequently Asked Questions
Is this ePub renamer free?
Yes, the Librost ePub File Renamer is completely free to use. There are no hidden fees, no signup required, and no usage limits.
Does this ePub renamer work offline?
The tool runs entirely in your browser using client-side processing. Once the page is loaded, you can rename files without an internet connection. Your ePub files are never uploaded to any server.
Can I rename multiple ePub files at once?
Yes. You can upload and bulk rename as many ePub files as you want in a single session. The tool extracts metadata from each file and applies your chosen naming pattern to all of them automatically.
What metadata does the ePub renamer extract?
The tool reads standard ePub metadata including title, author (creator), series, series index, publisher, language, ISBN (identifier), and publication date. You can use any of these fields in your custom filename pattern.
Is it safe to upload my ePub files?
Absolutely safe. All processing happens locally in your browser. Your files are never sent to or stored on any server. We cannot see the contents of your ePub files.