Web & Developer
What Is JSON? A Beginner's Guide With Examples
JSON is the format most apps and websites use to exchange data. It has only a handful of rules, and you can learn to read it in ten minutes.
Developer tools
Format, encode, decode and test the data formats behind the web.
JSON Formatter & ValidatorFormat, validate and minify JSON with clear error messages.Base64 Encoder & DecoderEncode text to Base64 or decode Base64 back to text.URL Encoder & DecoderPercent-encode text for URLs or decode it back.UUID GeneratorGenerate random v4 or time-ordered v7 UUIDs in bulk.Unix Timestamp ConverterConvert Unix time to a readable date and back.HTML Entity Encoder and DecoderEscape HTML characters to entities, or turn entities back into text.JWT DecoderDecode a JSON Web Token and read its header, claims and expiry.Regex TesterTest a regular expression against sample text and see every match.CSV to JSON ConverterConvert CSV to JSON or JSON to CSV, with files or pasted data.Binary, Hex and Decimal ConverterConvert numbers between binary, decimal, hexadecimal and octal.