How to open FASTA files

Did your computer fail to open a FASTA file? We explain what FASTA files are and recommend software that we know can open or convert your FASTA files.

What is a FASTA file?

The FASTA file extension indicates to your device which app can open the file. However, different programs may use the FASTA file type for different types of data.

While we do not yet describe the FASTA file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.

We are continually working on adding more file type descriptions to the site, so if you have information about FASTA files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!

Various FASTA openers

These apps are known to open certain types of FASTA files. Since many different programs may use FASTA files for different purposes, you may need to try a few of the apps to open your specific FASTA file.

BioEditBioEditUser submitted
Molecular Evolutionary Genetics AnalysisMolecular Evolutionary Genetics AnalysisUser submitted
SnapGene ViewerSnapGene ViewerUser submitted
DnaSPDnaSPUser submitted
SnapGeneSnapGeneUser submitted
Serial ClonerSerial ClonerUser submitted
SequencherSequencherUser submitted
GENETYX Version ApplicationGENETYX Version ApplicationUser submitted
Unipro UGENEUnipro UGENEUser submitted
ChromasPro ApplicationChromasPro ApplicationUser submitted
ChromasProChromasProUser submitted
DNA Baser AssemblerDNA Baser AssemblerUser submitted
GENtleGENtleUser submitted
SpinSpinUser submitted

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

We have not verified any programs that we know for certain can work with FASTA-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with FASTA-files. If you know one, please use the Suggest link below and tell us about it!