Open DNA files in your browser
The plasmid file SnapGene saves, and the one Addgene and colleagues send. Open it right here as its map and sequence, with nothing to install. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your sequence opens on its map, circular or linear, with its features, primers and the enzymes that cut it once.
- The map • Features as arrows in their colors, primers and unique cutters
- The sequence • Both strands, the features under them and each protein
- Find bases on either strand • IUPAC's codes, or a feature by name
- Export • The map as SVG or PNG, the sequence as GenBank or FASTA
About DNA
SnapGene is the app many molecular biology labs plan and draw their plasmids in, and its free SnapGene Viewer opens its files. Addgene offers the plasmids it sends as .dna files, and cloning plans, primers and notes travel in them from bench to bench.
A .dna is binary, packets that each hold a part: the sequence with whether it's circular, the features in XML with their colors and directions, the primers with where they bind, and notes such as the description and who made it.
Filepeek reads it in your browser and draws the map, circular or linear, every feature an arrow in the color SnapGene gave it, its primers, and the enzymes from a list of common ones that cut once. Sequence shows both strands with the features under them and each coding feature's protein, and Find looks for bases on either strand in IUPAC's codes. Export saves the map as SVG or PNG and the sequence as GenBank or FASTA.
SnapGene file
.dna
Format
- MIME type
- application/x-snapgene
- Made by
- GSL Biotech, now part of Dotmatics, for SnapGene
Inside the file
- Sequence
- DNA, circular or linear
- Features
- XML, with their colors
- Primers
- Where each one binds
- Written as
- Binary packets
Opens in every browser
Filepeek opens SnapGene files in Chrome, Edge, Firefox and Safari, on any device. On their own, browsers only download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open DNA
- WindowsSnapGene Viewer, free
- MacSnapGene Viewer, free
- iPhone and iPadNo app opens it
- AndroidNo app opens it
Questions
How do I open a .dna file without SnapGene?
Drop it on this page or choose Peek a DNA. Its map, sequence and features open in your browser, on a phone too, where SnapGene Viewer doesn't run.
Can I turn a SnapGene file into GenBank?
Yes. Choose Export, then Save as GenBank, with its features, their colors and its primers, for Benchling, ApE or any tool that takes GenBank.
Does it show the history of my construct?
No. SnapGene keeps a file's history and the traces aligned to it inside the file, and Filepeek shows its sequence, features, primers and notes.