BioEdit is a classic biological sequence alignment editor for Windows — long a lab staple for viewing, editing and aligning DNA and protein sequences and chromatograms. It is now legacy, unmaintained software, so below is what it does, how to use it, and the modern (including browser-based) alternatives most people are really looking for.
Is there a “BioEdit online”?
BioEdit itself is a downloadable Windows program — there is no official web version. If you searched for “BioEdit online”, what you usually want is to view, edit or align sequences in the browser. The tools below do exactly that, no install required:
- Clustal Omega (EBI) and MUSCLE / MAFFT (EBI) — multiple sequence alignment online.
- Jalview (JS) — in-browser alignment viewing and editing.
- NCBI MSA Viewer and LabTools reverse complement / translation for quick edits.
What BioEdit is used for
- Opening and editing FASTA and other sequence files, and viewing Sanger chromatograms (.ab1).
- Manual alignment editing — trimming, correcting base calls, adjusting gaps.
- Running plugins for translation, restriction analysis and basic statistics.
Modern desktop alternatives
- AliView — fast, lightweight alignment viewer/editor (Windows, Mac, Linux).
- Jalview — full-featured alignment workbench (desktop and JS).
- MEGA — alignment plus phylogenetics (see our MEGA page).
- UGENE — an integrated, actively maintained suite.
For most tasks that people once opened BioEdit for, a modern viewer like AliView or Jalview is faster and runs on any operating system.
Frequently asked questions
Is BioEdit still available?
It is legacy Windows software that is no longer actively maintained. Because download sources are inconsistent and unmaintained, we recommend a current alternative (AliView, Jalview, MEGA or UGENE) rather than linking an unofficial mirror.
Is there an online version of BioEdit?
No official web version exists. For in-browser work use Jalview (JS) or EBI’s Clustal Omega / MUSCLE for alignment.
What can I use to open .ab1 chromatograms?
Modern viewers such as UGENE, or dedicated trace viewers, open .ab1 files; many alignment tools also display trace data.
