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Diversity Indices Calculator  for species abundance data

Takes comma-separated species counts and calculates key biodiversity metrics including richness (S, Margalef), diversity (Shannon-Wiener, Brillouin, Simpson's), evenness (Pielou's J', Simpson's E1/D), and dominance (Berger-Parker) indices. Handles both sample and complete census data, showing appropriate indices for each data type.

Hardy-Weinberg Equilibrium Calculator  for a biallelic locus

Takes observed genotype frequencies and outputs the allele frequencies and expected number of common homozygotes, heterozygotes and rare homozygotes, plus indicates whether the population is significantly deviating from Hardy-Weinberg Equilibrium proportions by running a Chi-squared test and returning the corresponding p-value.

Population Genetics Simulator - PopG Online  for a biallelic locus

An online, no-download alternative to the classic population genetics program PopG. Simulates multiple subpopulations and enables you to observe the effect of natural selection, mutation, migration, and genetic drift on allele frequencies over a specified number of generations, outputting a downloadable graph and summary statistics.

Reverse Complement Tool  DNA sequence converter

Converts a DNA sequence (raw or FASTA) into its reverse, complement or reverse-complement.

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