Generate visual 2x2 and 4x4 Punnett squares with genotypic frequencies and phenotypic ratios.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Choose Monohybrid (1 gene trait) or Dihybrid (2 gene traits).
Enter alleles for Parent 1 and Parent 2 (e.g. Aa or AaBb).
Review the rendered Punnett square grid, genotypic probabilities, and phenotype breakdown.
When crossing two heterozygous parents (AaBb x AaBb), the classic Mendelian phenotypic ratio is 9:3:3:1.
Yes, you can enter any combination such as AA, Aa, aa, AABB, AAbb, or aabb.
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