JSON formatter & validator
Format, beautify, validate, and minify JSON online. Pinpoint syntax errors by line and column, sort keys, and copy or download the result.
Encode or decode URLs and query strings with percent-encoding, and break any URL into its parts and parameters.
Percent-encode text for use in URLs and query strings, or decode encoded URLs back to readable text. The URL parser breaks any address into protocol, host, path, query parameters, and fragment.
-_.!~*'(); use for query values: / ? # & = so the URL still works+ (application/x-www-form-urlencoded)URL encode / decode is a free online tool on ReallyUseful.Tools. No account is required.
URL encode / decode is designed to run in your browser where supported, so files can stay on your device instead of being uploaded to a server.
Format, beautify, validate, and minify JSON online. Pinpoint syntax errors by line and column, sort keys, and copy or download the result.
Pick a color and convert between HEX, RGB, HSL, HSV, and CMYK. See tints, shades, and contrast ratios against black and white.
Encode text to Base64 or decode Base64 back to text with full UTF-8 support and an optional URL-safe alphabet.
Convert Unix epoch timestamps to human-readable dates and back. Supports seconds and milliseconds, local time, UTC, and ISO 8601.
Generate MD5, SHA-1, SHA-256, SHA-512, SHA3, and CRC32 hashes for text or files. Verify checksums and create HMACs locally.