Try the DNA Sequence Analyzer
Paste any raw DNA sequence — from GenBank, Ensembl, NCBI, a FASTA file, or your own lab data — and run six bioinformatics analyses in one place: sequence statistics, an open reading frame
- Free to use
- No signup
- Nothing to install
- Works in any modern browser
Paste a short coding sequence starting with ATG. The Stats tab shows GC content and length; the ORF tab finds the open reading frame across all 6 frames; the Protein tab translates it codon-by-codon into the corresponding amino acid chain.Open the DNA Sequence Analyzer
Illustration. Open the tool for the real thing.
What is the DNA Sequence Analyzer?
Paste any raw DNA sequence — from GenBank, Ensembl, NCBI, a FASTA file, or your own lab data — and run six bioinformatics analyses in one place: sequence statistics, an open reading frame (ORF) finder, protein translation, mutation detection between two sequences, restriction enzyme site scanning, and primer design.
The tool automatically strips whitespace, numbers and FASTA header lines from your input, so you can paste a sequence straight from a database export without cleaning it up first, then switch between analysis tabs to explore each result.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Length, GC/AT content, nucleotide counts, molecular weight and reverse complement in one click.
Scans all six reading frames for ATG-to-stop-codon open reading frames with protein length estimates.
Translates DNA to amino acids using the standard genetic code, codon by codon.
Finds cut sites for 30+ common enzymes and designs primers with Tm, GC% and GC-clamp analysis.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
Biology & bioinformatics students
Explore GC content, ORFs and translation hands-on while learning molecular biology concepts.
Try it freeResearchers
Quickly check restriction sites or design primers for a sequence without opening dedicated lab software.
Try it freeLab technicians
Verify sequence statistics or scan for restriction enzyme cut sites before planning a cloning step.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This study tool | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
Questions people ask
Is this DNA analyzer free?
Yes, completely free with no signup required.
What sequences can I analyze?
Any DNA sequence in IUPAC format — the tool strips whitespace, numbers and FASTA headers automatically, so exports from GenBank, Ensembl or NCBI work directly.
What is an open reading frame (ORF)?
A DNA sequence starting with a start codon (ATG) and ending with a stop codon, without any intervening stop codons — a primary candidate for a protein-coding gene.
How many restriction enzymes does it check?
30+ common enzymes used in molecular cloning, including EcoRI, BamHI, HindIII and NotI.
Can it compare two sequences for mutations?
Yes, the Mutation tab compares two sequences and flags substitutions, insertions and deletions with position annotations.
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Try the DNA Sequence Analyzer now
Paste any raw DNA sequence — from GenBank, Ensembl, NCBI, a FASTA file, or your own lab. Free to use.
Try it free