FB2 to EPUB Converter
Convert FictionBook (FB2) ebooks to EPUB for Apple Books, Google Play Books, Kobo and most readers.
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About Converting FB2 to EPUB
FB2 is an XML-based e-book format popular in Eastern Europe. It stores the whole book in a single structured XML file, which makes it easy to convert. When you need to move away from FB2, the usual reason is simple: limited reader support outside certain regions.
Converting your FB2 e-book to EPUB solves that. EPUB is the open, reflowable e-book standard used by most readers except Kindle. Text adapts to any screen size, and the format supports images, styling and navigation. In practice you gain reflowable text for any screen and open standard. PrivConvert runs the whole FB2-to-EPUB conversion in server memory and deletes your file the instant the EPUB is ready — nothing is stored, logged or reused.
When this conversion helps
- You need reflowable text for any screen
- You need open standard
- You need supported by most e-readers and apps
- Sharing a FB2 e-book with someone whose software expects EPUB
Tips for best results
- Files up to 250 MB are supported, and you can batch-convert several FB2 files at once; each is processed privately and deleted immediately.
How to Convert FB2 to EPUB Online
Turning a FB2 file into EPUB is straightforward here — upload, convert, download. What you gain with EPUB: reflowable text for any screen.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.
Once uploaded, the conversion from FB2 to EPUB starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
Why convert FB2 to EPUB with PrivConvert?
PrivConvert turns your FB2 into EPUB without ever storing, logging or sharing it. Here is what that looks like in practice:
Every conversion runs in its own locked-down process with no network access, so files can never leak or interfere with one another.
Your files are handled entirely by automated code. No staff, partner or AI model ever reads, stores or trains on your data.
Files are processed in volatile memory (RAM) and purged the instant your download is ready — nothing is ever written to disk, cached or backed up.
Every upload and download is protected with TLS 1.3, so your e-book cannot be intercepted on the way to the server or back to you.
FB2 vs EPUB - Format Comparison
| Feature | FB2 | EPUB |
|---|---|---|
| File extension | .fb2 | .epub |
| Full name | FictionBook | Electronic Publication |
| Encoding | Text | Binary |
| Editable | Yes | No |
| Open standard | Yes | Yes |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 20 files simultaneously | |
Trusted by thousands of users
Professionals reach for PrivConvert when the e-book they are converting is sensitive and cannot be left sitting on someone else’s server.