Convert GenBank to Markdown.
Drop a .gb or .gbk record and read its key fields as clean Markdown. 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.
A flat file built
for sequence tools.
A GenBank record packs its identity, definition and organism into fixed header columns. Converting lifts those fields out as a readable Markdown summary you can scan or paste anywhere.
LOCUS NC_001 5384 bp DNA
DEFINITION Example phage genome.
ACCESSION NC_001
ORGANISM Escherichia virus
FEATURES Location/Qualifiers
ORIGIN
# GenBank record
- **LOCUS:** NC_001 5384 bp DNA
- **Definition:** Example phage genome.
- **Accession:** NC_001
- **Organism:** Escherichia virus
Everything you
actually need.
A GenBank record in, a tidy field summary out, with no server and no account anywhere.
It never leaves your browser
The .gb is read and parsed on your own device. Nothing 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.
- LOCUS: NC_001
- Organism: E. virus
Header fields, surfaced
LOCUS, definition, accession and organism are pulled into a labelled list.
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 one file or a thousand; it all runs the same way, on your own device.
The header,
not the genome.
Honest about what comes through, and what doesn't. These are the same notes the Formats list shows for GenBank, so the page never drifts from what the converter really does.
Kept
4- LOCUS
- DEFINITION
- ACCESSION
- ORGANISM
Dropped
3- The feature table
- References
- The full sequence
LOCUS NC_001
DEFINITION Example genome.
ACCESSION NC_001
ORGANISM Escherichia virus
FEATURES Location/Qualifiers
gene 1..1206
CDS 1..1206
REFERENCE 1 (bases 1 to 5384)
AUTHORS Doe,J.
ORIGIN
1 atgagtgaac gctctagcac
21 cggataaccc tctataaccg
GenBank questions,
answered.
Everything worth knowing before you drop in a record.
Other converters.
Working with more than sequence records? These convert the same way: privately, in your browser.
Markdown to Markdown
.md · .markdown · .mdx
Markdown & MDX source.
HTML to Markdown
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Web page markup.
Plain text to Markdown
.txt
Unformatted text files.
LaTeX to Markdown
.tex · .latex
LaTeX typesetting source.
reStructuredText to Markdown
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Python documentation markup.
AsciiDoc to Markdown
.adoc · .asciidoc
AsciiDoc technical writing.
Org-mode to Markdown
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Emacs Org-mode documents.
Textile to Markdown
.textile
Textile lightweight markup.