Developer & data
Format, validate, convert and inspect structured data.
Available tools
JSON Formatter
Format and indent JSON in your browser with adjustable spacing.
JSON Validator
Check JSON validity locally and see a clear parse error when it fails.
JSON to CSV Converter
Convert a JSON array of objects into CSV in your browser.
CSV to JSON Converter
Convert CSV into a JSON array of objects in your browser.
Base64 Encoder
Encode text to Base64 locally, including Unicode text.
Base64 Decoder
Decode Base64 back to readable text locally.
URL Encoder
Percent-encode text for safe use in a URL locally.
URL Decoder
Decode percent-encoded URL text locally.
UUID Generator
Generate one or more version 4 UUIDs locally.
Hash Generator
Generate a SHA-1/256/384/512 hash of text locally.
Unix Timestamp Converter
Convert between a Unix timestamp and a readable date locally.
Word & Character Counter
Count words, characters, lines and bytes locally.
Text Diff
Compare two blocks of text line by line locally.
Regex Tester
Test a regular expression against sample text locally.
CSV Delimiter Converter
Convert CSV to a different delimiter locally.
YAML to JSON Converter
Convert YAML to formatted JSON locally.
JSON to YAML Converter
Convert JSON to YAML locally.