Developer Tools

Free online developer tools for formatting, validating, converting and encoding data.

JSON, Base64, URL encoding, formatters, generators, and converters — all in your browser. Nothing is uploaded for these tools.

• JSON FormatterPretty-print and minify JSON in your browser. Nothing is uploaded.
• JSON ValidatorValidate JSON with line and column errors in your browser. Nothing is uploaded.
• JSON ViewerView and inspect JSON structure in your browser. Nothing is uploaded.
• JSON MinifierMinify JSON in your browser. Nothing is uploaded.
• JSON to CSVConvert JSON arrays to CSV in your browser. Nothing is uploaded.
• CSV to JSONConvert CSV to JSON in your browser. Nothing is uploaded.
• Base64 EncoderEncode text to Base64 in your browser. Nothing is uploaded.
• Base64 DecoderDecode Base64 text in your browser. Nothing is uploaded.
• URL EncoderURL-encode text in your browser. Nothing is uploaded.
• URL DecoderURL-decode text in your browser. Nothing is uploaded.
• HTML FormatterBeautify HTML in your browser. Nothing is uploaded.
• CSS FormatterBeautify CSS in your browser. Nothing is uploaded.
• JavaScript FormatterBeautify JavaScript in your browser. Nothing is uploaded.
• UUID GeneratorGenerate UUID v4 values in your browser. Nothing is uploaded.
• Random String GeneratorGenerate random strings with Web Crypto in your browser.
• Password GeneratorGenerate strong passwords with Web Crypto in your browser. Nothing is stored.
• Unix Timestamp ConverterConvert Unix timestamps and dates in your browser. Nothing is uploaded.
• Color ConverterConvert HEX, RGB, and HSL colors in your browser. Nothing is uploaded.
• Hash GeneratorCompute SHA-256 and SHA-1 hashes in your browser. Nothing is uploaded.
• JWT DecoderDecode JWT header and payload in your browser. Signature is not verified.