Test regular expressions with live match highlighting and group capture.

Decode JWT header and payload, verify expiry, inspect claims.

Compare two blocks of text side-by-side with per-line highlighting.

Format numbers as Indonesian Rupiah and convert to terbilang.

Convert Unix timestamps to human-readable dates across timezones.

Encode or decode URLs and parse query strings into a table.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes via Web Crypto.

Convert text between camelCase, PascalCase, snake_case, and kebab-case.