Free genetics tools
Genetics made clear
Pedigree analysis, Punnett squares, blood type, Hardy-Weinberg, GC content, transcription — all free, no signup, no account.
Featured tools
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Pedigree analysis
Inheritance pattern finder
Draw a family tree and instantly see which inheritance patterns — autosomal dominant, X-linked recessive, mitochondrial, and more — are consistent with your data.
GeneticsPunnett square
Mono- and dihybrid crosses with genotype and phenotype ratios.
GeneticsBlood type calculator
Predict child blood type from parents, or reverse: find possible parent types.
GeneticsHardy-Weinberg
Allele frequencies, expected genotype counts, chi-square test.
DNA analysisGC content
Base composition and GC% from any DNA or RNA sequence.
DNA analysisTranscription & translation
DNA → mRNA → protein with codon-by-codon display.
TraitsEye color calculator
Predict baby eye color probabilities from both parents.
TraitsHeight predictor
Mid-parental height formula with ±10 cm range for boys and girls.