Developer Tools

Formatters, validators, encoders and generators that developers reach for every day. They run instantly in the browser with no sign-up, so you can check a JSON payload or generate a UUID without leaving your workflow. The first live tools are the daily essentials: the JSON Formatter beautifies and validates JSON with your choice of indent, and the UUID v4 Generator creates random version-4 identifiers in bulk for database keys and test data. Base64 encoding and decoding live in the Encoders category and work the same way — UTF-8 safe, entirely local, which matters when the text you are encoding is a token or a secret. Later batches add hash generators, regex testers, JWT decoders, SQL formatters, color pickers, cron expression explainers and dozens more utilities. Because everything runs client-side, your code, keys and test data never leave your machine, and the tools work offline once loaded. The tools are deliberately small and fast: no frameworks to load, no tracking, and results in milliseconds, so they fit into a workflow without breaking concentration.