GenBank Map Viewer — Visualise GenBank Files Online
Paste a GenBank record and see an annotated circular or linear map with a feature table.
🔒 Local processing — pasted sequences are not uploaded
Open a GenBank record and see it as a map instead of a wall of text. Paste a GenBank flat file and SeqBench parses the LOCUS, DEFINITION, FEATURES table and ORIGIN sequence, then renders an annotated circular and linear map with color-coded features. A sortable feature table lists every gene, CDS, promoter and misc_feature with its location, strand and length, and you can copy the extracted sequence or export the map as a publication-ready SVG or PNG — a quick, no-signup GenBank viewer for reviewing constructs and annotations.
Paste a GenBank record to render the annotated map.
How to use the GenBank Viewer tool
- 1Paste a GenBank record (or load the example); the LOCUS, features and ORIGIN sequence are parsed automatically.
- 2Explore the annotated circular or linear map — features are color-coded by type.
- 3Browse the feature table, copy the sequence, or export the map as SVG/PNG.
Frequently asked questions
- What does the GenBank viewer parse?
- The LOCUS line (for length and topology), the DEFINITION, the FEATURES table — including locations like 123..456, complement(...) and join(...), with /label, /gene and /product qualifiers — and the ORIGIN sequence. Features become annotations on the map and rows in the feature table.
- Can I see a circular plasmid map?
- Yes. Switch the view to circular (or circular + linear) to see the record as a ring with features placed around it. Records marked 'circular' on the LOCUS line are noted below the map.
- Can I export the map or copy the sequence?
- Yes. Export the annotated map as a vector SVG or a high-resolution PNG for figures and slides, and copy the full extracted sequence with one click.
- Is my GenBank file uploaded?
- No. Parsing and rendering happen locally in your browser, so your record is never uploaded to SeqBench.