Media
Convert AVI video files to MP4 format
avi-to-mp4Media
Audio spectrum analyzer with 3D isometric visualization
audio-spectrum-analyzer-3dMedia
Play audio files with real-time frequency visualization
audio-visualizer-playerMath & Numbers
Calculate exact, cumulative, and upper-tail binomial probabilities for independent Bernoulli trials
binomial-distribution-calculatorMath & Numbers
Calculate posterior probability P(A given B) using prior, likelihood, and false-positive rate
bayes-theorem-calculatorMath & Numbers
Compare arithmetic, geometric, and harmonic averages for a numeric dataset in one place
average-calculatorDesign
Batch generate Code 128, EAN-13, UPC-A, ITF-14, QR Code, and Data Matrix outputs from CSV or multiline text
barcode-batch-generatorAstronomy
Calculate blue hour times - the magical time before sunrise and after sunset with deep blue skies
blue-hourHealth
Calculate baseball batting statistics including batting average and on-base percentage
baseball-statsHealth
Calculate bowling score with frame-by-frame breakdown
bowling-scoreValidation
Validate Amazon Resource Names (ARNs) format for AWS cloud resources
aws-arn-validatorFinance
Calculate bond current yield and yield to maturity (YTM)
bond-yield-calculator