Health Toolkit

Formulas, rhythms, balancing, and significance tests

Interactive demos of classic ciphers and how blockchain blocks, hashing and consensus work.

Turn text into ASCII character art

Base64, URL, case, radix and Morse codecs

Color picker, palettes, gradients and contrast checker

Countdowns, time zones, timestamps and date calculations

Compare, stitch, watermark, Base64, plus GIF making and a pixel-art editor.