FB2 Converter
Free FB2 converter that runs entirely in your browser. No upload, no signup — convert to FB2 or from FB2 into 200+ supported formats in one click.
Drop any file here or click to browse
All file types supported
About FB2
FB2
FB2 (FictionBook) is an open XML-based e-book format widely used for fiction literature. FB2 describes document structure rather than appearance, making it lightweight and easy to convert into other formats like EPUB, MOBI, and PDF.
- Developer
- FictionBook Community
- Initial release
- 2004
- Compression
- Lossless
- Color depth
- up to 32-bit
- Transparency
- Yes
Best for
- Fiction e-books
- Open XML document structure
- Cross-platform e-readers
Pros
- +Open XML-based format
- +Lightweight and structured
- +Easy conversion to EPUB and MOBI
Cons
- −Less common on non-Russian e-readers
- −Limited rich layout support
How to convert with the FB2 converter
- 1
Choose the FB2 file you want to convert from your PC, Mac or mobile device, or simply drag and drop it onto the page.
- 2
When your file is uploaded, the output format is preset to FB2. You can add more files to batch-convert them together.
- 3
Click the gear icon and tweak codec, quality, resolution or other options if you need them, then apply to all files if you want.
- 4
Click the Convert button. When conversion completes, download the result to your computer or save it back to Google Drive / Dropbox.
Frequently Asked Questions
What is an FB2 file?▼
FB2 (FictionBook) is an open, XML-based e-book format popular for fiction. It stores structured text, chapters, and images in a lightweight file that reflows on any reader and converts easily to EPUB, MOBI, or PDF.
Why convert FB2 to EPUB or PDF?▼
EPUB works on virtually every e-reader and phone, while PDF keeps a fixed layout for printing. Converting makes your FictionBook library readable on Kindle, Apple Books, and any device without special apps.
Can I convert FB2 to MOBI or AZW3 for Kindle?▼
Yes. ChameLeo converts FB2 to MOBI and AZW3 so legacy Kindle devices can open the book natively — the text, chapters, and cover image are preserved.
Does converting FB2 lose formatting?▼
Core structure — headings, paragraphs, emphasis, and images — is preserved. Advanced styling may be simplified, since FB2 describes structure, not pixel-perfect layout.
Are my e-books uploaded when converting?▼
Never. ChameLeo converts locally in your browser — purchased and personal e-books stay on your device.
Supported Conversions
Specific converters
100% Free
No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.
No Signup Required
Start converting immediately without creating an account or sharing email address.
Private & Secure
Your files never leave your device. All processing is completed locally for maximum privacy.
Batch Conversion
Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.
Runs in Browser
Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.
200+ Formats
Supports a wide variety of formats including images, documents, audio, video, and more.
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