JSON Formatter
Beautify, minify, and validate JSON with useful errors.
Open toolDeveloper tools
Format, decode, validate, and generate common developer data.
JSON ↔ YAML
Convert between JSON and YAML in either direction.
Open toolBase64 Encoder / Decoder
Encode or decode Base64 with correct UTF-8 support.
Open toolJWT Decoder
Inspect JWT header, payload, and common time claims.
Open toolUUID Generator
Generate secure UUID v4 or time-ordered UUID v7 values.
Open toolUnix Timestamp Converter
Convert timestamps and dates in seconds or milliseconds.
Open toolRegex Tester
Test JavaScript regular expressions and inspect every match.
Open toolCron Expression Parser
Explain five-field Unix cron and preview future runs.
Open toolSQL Formatter
Format SQL for PostgreSQL, SQL Server, MySQL, and SQLite.
Open toolXML Formatter / Validator
Format XML and report syntax errors with line details.
Open toolHTML Formatter / Minifier
Make HTML readable or create conservative compact markup.
Open toolCSS Formatter / Minifier
Format CSS consistently or optimize it for delivery.
Open tool