Developer Tools
Format, encode and decode data — the everyday utilities developers reach for.
JSON FormatterFormat, beautify and validate JSON with clear error messages.Base64 Encoder / DecoderEncode text to Base64 or decode Base64 back to text (UTF-8 safe).URL Encoder / DecoderPercent-encode text for URLs, or decode an encoded URL back.UUID GeneratorGenerate random version-4 UUIDs in bulk.Hash GeneratorCompute SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text.Unix Timestamp ConverterConvert between Unix timestamps and human dates, both ways.Color ConverterConvert colours between HEX, RGB and HSL with a live swatch.JWT DecoderDecode a JWT's header and payload, with expiry check.HTML Entity Encoder / DecoderEncode text to HTML entities or decode entities back to text.Number Base ConverterConvert numbers between binary, octal, decimal and hex.Query String ParserParse a URL or query string into decoded key/value pairs.