Plasmid Map & Sequence Viewer
Render a circular or linear map with restriction sites.
This plasmid map viewer renders a DNA or plasmid sequence as an interactive circular DNA map, a linear sequence viewer, or both, with the base index and complement strand. Toggle any of 15 common restriction enzymes to overlay their cut sites and read the restriction map, then export the figure as SVG, PNG or PDF. It is a plasmid viewer online that never logs or stores your sequence.
0 bp
▸Display: circular + linear · 3 enzymes · index · complement
Cut sites are drawn on the map. The schematic view does not show them.
Design, edit, and verify complete constructsSeqStudio combines sequence editing and annotation, plasmid maps, primer/cloning/CRISPR design, Sanger verification, and GenBank/SnapGene files in one workspace.
How to use the Plasmid Viewer tool
- 1Paste a DNA or plasmid sequence into the "DNA sequence" box, or click "Load example (GFP)", and name it under "Construct name".
- 2Pick "Circular + linear", "Circular only" or "Linear only" from the View dropdown, and use the "Show index" and "Show complement" checkboxes to control what the map labels.
- 3Click the enzyme chips under "Restriction enzymes" to overlay cut sites: EcoRI, BamHI and HindIII start selected, and 15 common enzymes are available.
- 4With a circular view showing, save the map from the Figure button as SVG, PNG or PDF (untick "Watermark" in that menu to drop the seqbench.com credit), or press Share to copy a link that reopens the same view.
Frequently asked questions
Can it show restriction sites?
Yes. Toggle any of the 15 enzyme chips under "Restriction enzymes" (EcoRI, BamHI and HindIII start selected) and their sites are marked on the circular and linear map as you click. This page marks positions only: for predicted fragment sizes on a simulated agarose gel use the Virtual Gel tool, and for a scan across the full curated enzyme set on an editable construct open SeqStudio.