Parsers & Testers
Parse URLs, JWTs, user agents and query strings; test regex and JSONPath.
Available tools
URL ParserSplit a URL into protocol, host, port, path, query parameters and fragment, with percent-encoding decoded.JWT DecoderDecode a JSON Web Token to read its header and payload, with exp, iat and nbf shown as dates. The signature is not verified.User Agent ParserIdentify the browser, rendering engine, operating system and device type from a User-Agent string.Query String to JSON ConverterConvert a URL query string to JSON. Repeated keys become arrays and bracket keys like user[name] become nested objects.Regex TesterTest JavaScript regular expressions live with highlighted matches, a capture group table and a replace preview.JSONPath TesterEvaluate JSONPath expressions such as $..price or $.items[?(@.qty > 1)] against JSON and see the matched values or paths.HTTP Header ParserParse raw HTTP request or response headers into JSON. Repeated headers such as Set-Cookie become arrays.Cookie ParserParse a Cookie request header or Set-Cookie response headers into JSON, including Expires, Max-Age, SameSite and flags.