Convert FictionBook to Markdown.
Drop an .fb2 e-book and turn its sections into a nested Markdown outline. It runs entirely in your browser, so your file never leaves your device.
Drag & drop your files
or
Optimize for AI & RAG
Extra cleanup for LLM ingestion: strip HTML, fix smart quotes, tidy Unicode and spacing.
Add YAML front matter
Prepend a metadata block (title, source, date, word & token counts) for knowledge bases and RAG.
Add table of contents
Build a linked index from the headings. Handy for long documents.
Export RAG chunks (.json)
Split the result into retrieval-ready chunks. Download per file from the result panel.
Most converters quietly upload your documents to a server. This one physically can't.
Sections in,
an outline out.
FictionBook stores a book as nested XML sections, tidy but bound to a reader. Converting maps that nesting onto heading levels and keeps the prose as ordered paragraphs.
<section>
<title>Part One</title>
<section>
<title>The Arrival</title>
<subtitle>An autumn evening</subtitle>
<p>The train was late again.</p>
# Part One
## The Arrival
**An autumn evening**
The train was late again.
Everything you
actually need.
FictionBook XML in, a nested Markdown outline out, with no server and no account anywhere.
It never leaves your browser
Your .fb2 is parsed on your own device. Not a line of the book is uploaded to any server, ever.
# Heading
- point one
3 chunks
AI & RAG ready
Optional cleanup, YAML front matter, a table of contents and RAG chunk export.
Works offline
Once the page has loaded you can switch off your connection and it keeps converting.
# Part
## Chapter
### Scene
Nested headings
Each nested section becomes a deeper heading, so a book keeps its parts, chapters and scenes as an outline.
Unicode safe
Accents, symbols and non-Latin scripts come through intact as UTF-8.
Free, and unlimited
No sign-up, no quotas, no watermarks. Convert a single short story or a whole shelf of novels; it all runs the same way, on your own device.
The outline,
not the trim.
Clear about what the converter pulls from the markup. It reads the section structure and the prose, not the trimmings. These match the notes the Formats list keeps for FictionBook.
Kept
4- Section headings
- Subtitles
- Paragraphs
- Unicode / UTF-8
Dropped
4- Images
- Footnotes
- Inline emphasis
- Metadata
FictionBook questions,
answered.
Everything worth knowing before you convert an .fb2 book.
Other converters.
Have books in other formats too? These convert the same way: privately, in your browser.
Citation File to Markdown
.cff
Software citation metadata.
FASTA to Markdown
.fasta · .fa
Biological sequence data.
FASTQ to Markdown
.fastq · .fq
Sequencing reads with quality.
GenBank to Markdown
.gb · .gbk
Annotated DNA sequences.
PDB to Markdown
.pdb
Protein 3D structures.
Newick to Markdown
.nwk · .tree
Phylogenetic trees.
GFF / GTF / BED to Markdown
.gff · .gtf · .bed
Genome feature annotations.
SAM to Markdown
.sam
Sequence alignment data.