Bioinformatics Hub

Bioinformatics at the tip of your fingers

A free hub of molecular biology tools for DNA, RNA and protein analysis — clean, translate, align, calculate and search, all in your browser.

+128k

128,103+Registered biological researchers

Adsquare home temp

Hosted Tools

AdLC pinter mobile

DNA/RNA

19 tools

Cleaner

Clean your sequences from unwanted text marks and spaces, useful after retrieving sequences from online databases.

Translator

Translate your DNA sequences from 1 to 6 phases with formatted outputs and multiple genetic codes.

NetPlasmid

Draw colored plasmid maps in a few minutes straight from your browser.

ORF Viewer

Find ORF regions on your DNA sequence with graphical output on the 6 phases (direct and reverse).

Batch Codon Usage

Find codon usage and %GC from one or more sequences in batch.

Cutter

Quickly get the list of all enzyme restriction sites on your sequence.

Complementor

Get the complementary (reversed or not) of your DNA sequence.

EnzFinder

Search for commercial data about any enzyme: availability, cut sequence, references.

OligoCalc

Calculate your primer parameters: length, %GC, melting temperature (Tm), molecular weight.

Primer Designer

Design PCR primers around your template, or around a target region, and get ranked pairs with their Tm, GC and product size. Inspired by Primer3, with simplicity in mind.

Primeranneal

Search and visualize where your primers will hybridize on your DNA template, direct and reversed at once.

Virtual Gel

Simulate an agarose gel: digest your sequence with restriction enzymes and read the band pattern.

Dot Plot

Compare two sequences, or a sequence with itself, and reveal repeats and inverted repeats as diagonals.

Align

Align two or more DNA or protein sequences from FASTA: pairwise (global or local) or progressive multiple alignment with ClustalW-style options.

Reverse Translate

Back-translate a protein into a DNA coding sequence using the preferred codons of your host.

Sequence Stats

Base composition, GC content, GC skew, melting temperature and molecular weight of a sequence.

Repeat Finder

Find tandem repeats, microsatellites and CpG islands in your DNA sequence.

Bench Calculators

Length to mass, amount conversions, OD260 readings and dilution planning at the bench.

RNA Secondary Structure

Fold an RNA sequence into its minimum free energy secondary structure and draw it as a stem-and-loop diagram or a circular map.

JustBio — Bioinformatics at the tip of your fingers

© 2026 JustBio Hub. A bioinformatics toolkit.