Compare software

SeqKit vs Seqtk: catalog facts
SeqKit	Seqtk
Best for: Researchers and bioinformatics users working with FASTA or FASTQ files	Best for: Researchers processing FASTA or FASTQ sequencing data
Free Free and open source under the MIT license.	Free Free and open source under the MIT license.
Windows, macOS, Linux, Command line	Command line
Offers many commands for sequence-file operations Reads FASTA and FASTQ plus several compressed formats All 3 strengths for SeqKit Offers many commands for sequence-file operations Reads FASTA and FASTQ plus several compressed formats Supports standard input and output for shell pipelines	Works with FASTA and FASTQ, including gzip-compressed files Includes conversion, trimming, extraction and sampling commands All 3 strengths for Seqtk Works with FASTA and FASTQ, including gzip-compressed files Includes conversion, trimming, extraction and sampling commands Has only zlib as a library dependency
Focused on FASTA and FASTQ sequence data	Requires building from source.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for SeqKit bioinf.shenwei.me/seqkit Catalog checked October 8, 2026	Official website Full listing and sources Sources for Seqtk github.com/lh3/seqtk Catalog checked October 8, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.