Developer Tools
Formatters, encoders, decoders and generators for everyday development work.
15 tools in this category
JSON Formatter
Format, beautify and validate JSON with 2 or 4 space indentation.
JSON Validator
Check whether a JSON document is valid and see exactly where it breaks.
JSON Minifier
Strip whitespace from JSON and see how many bytes you saved.
JWT Decoder
Decode the header and payload of a JSON Web Token and inspect its claims.
UUID Generator
Generate cryptographically random v4 UUIDs in bulk.
Regex Tester
Test regular expressions live with highlighted matches and capture groups.
Cron Expression Generator
Build and explain cron schedules in plain English.
Base64 Encoder & Decoder
Convert text to Base64 and back, with full Unicode support.
URL Encoder & Decoder
Percent-encode and decode URLs, query strings and components.
HTML Entity Encoder
Escape and unescape HTML entities to display markup safely.
Unix Timestamp Converter
Convert Unix timestamps to human dates and back, in UTC and local time.
Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes from text or files.
SQL Formatter
Format SQL queries with consistent keyword casing and indentation.
XML Formatter
Pretty-print and validate XML documents with proper indentation.
YAML to JSON Converter
Convert YAML to JSON and back, with syntax checking.