JSON Formatter & Validator
Make a compact JSON payload readable and identify invalid syntax.
Open toolThe workbench
Useful tools. No setup.
Choose a task, paste a small sample and get a result locally. Each tool includes examples, validation and the limitations you need to interpret its output.
10 tools
Regex Tester
Inspect JavaScript matches, capture groups and start indices before using a pattern in code.
Open toolColor Palette & Contrast
Create a five-color starting palette and test a specific text/background contrast pair.
Open toolBase64 Encoder & Decoder
Convert Unicode text to standard Base64 or Base64url and inspect UTF-8 text encoded in either format.
Open toolSHA Hash Generator
Generate a SHA-256, SHA-384 or SHA-512 fingerprint of entered UTF-8 text.
Open toolURL Encoder & Decoder
Escape an individual query value or inspect a whole URI using the appropriate boundary.
Open toolUUID v4 Generator
Create one to 100 random UUID v4 identifiers for development records and synthetic fixtures.
Open toolUnix Timestamp Converter
Convert explicit Unix seconds, milliseconds or offset-bearing ISO text into UTC and numeric representations.
Open toolCSV to JSON Converter
Turn a header-based CSV, semicolon-separated or tab-separated table into JSON objects without losing cell spelling.
Open toolText Line Diff
Compare two small configurations or text fixtures and see additions, removals and unchanged lines.
Open tool