SEQ FASTA
Not possible

Convert SEQ to FASTA

Can you convert SEQ to FASTA?
QUICK ANSWER
Is it possible to convert SEQ to FASTA?
No - not a direct conversion.

db_conversions_from lists seq→fasta - this only makes sense for bioinformatics .seq (plain-text DNA), not the PS1 SEQ binary audio format. A PS1 SEQ binary cannot be converted to FASTA. (For DNA .seq text → FASTA: trivially add a '>' header line.)

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Also to FASTA: AB1 · GB

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Converting SEQ to FASTA

A .SEQ file and a .FASTA file hold different kinds of data, so there is no direct way to turn one into the other. The programs listed below can open .SEQ files and may be able to export the content to a format closer to .FASTA.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert SEQ

MultiFASTA Builder
Convertrix

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