SeqBench is a free, browser-based bioinformatics toolkit designed for molecular biologists, bioinformaticians, and students working with DNA, RNA, and protein sequences.

Why I Built It

Most bioinformatics software is either:

• Expensive (SnapGene $200+/year)
• Bloated and slow to open
• Requires installation on every device

I wanted something lightweight, private, and instantly accessible for quick sequence checks in the lab.

Key Features

• 15+ integrated tools: reverse complement, translation, ORF finder, primer Tm, CRISPR gRNA designer, plasmid viewer, codon optimizer, restriction analysis, FASTA/FASTQ stats, pairwise alignment, and more
• Privacy-first: most calculations run locally in your browser — your sequences don't leave your device
• Zero friction: no registration, no installation, no paywalls
• Database integration: fetch sequences from GenBank, RefSeq, and UniProt using just accession numbers
• Educational resources: built-in guides and reference tables for students

Use Cases

• Quick sequence checks without opening heavy desktop software
• Teaching molecular biology and bioinformatics
• Primer design and validation
• CRISPR guide RNA screening
• Learning sequence analysis fundamentals

Try it out at seqbench.com

Would love feedback from the bioinformatics and developer communities!