All tools
Every TrueFormatter tool, grouped by category. Free, no signup, and everything runs in your browser.
JSON Tools
Format, validate, compare, query and convert JSON.
- JSON FormatterRepair, validate, and beautify broken JSON (missing quotes, trailing commas).
- JSON ValidatorNewCheck JSON syntax and see the exact line and column of every error.
- JSON BeautifierPretty-print and indent JSON for easy reading and debugging.
- JSON CompareFind the difference between two JSON objects visually and quickly.
- JSONPath TesterEvaluate JSONPath expressions with filters and recursive queries.
- JSON Schema GeneratorGenerate a JSON Schema from any sample JSON document.
- JSON to CSV ConverterFlatten nested JSON arrays into CSV for spreadsheets.
- YAML to JSON ConverterConvert YAML to JSON or JSON to YAML instantly.
Encoding & Security
Tokens, hashes and encodings you meet when debugging APIs.
- JWT DecoderDecode and inspect JSON Web Tokens (JWT) Header and Payload.
- JWT GeneratorNewCreate and sign HS256/HS384/HS512 JSON Web Tokens for testing.
- Hash GeneratorNewGenerate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes.
- Base64 Encoder & DecoderEncode text to Base64 and decode Base64 to text for API debugging.
- URL Encoder & DecoderCleanly encode special characters in URLs and decode query strings.
Code Formatters & Minifiers
Make SQL readable, or make CSS and JavaScript smaller.
Generators & Testers
Patterns, schedules, IDs and timestamps.
- Regex TesterNewTest JavaScript regular expressions with live match highlighting and groups.
- Cron Expression GeneratorNewBuild cron schedules, read them in plain English and preview next runs.
- UUID GeneratorGenerate unique V4 UUIDs for database keys or testing.
- Epoch Time ConverterConvert UNIX timestamps to human-readable dates and back instantly.