URL Encoder & Decoder

Convert query strings, special characters, and parameters into percent-encoded URI strings or decode encoded URLs back to readable text in real time.

Scope:

Raw URL / Query String Input80 chars

Encoded Result106 chars

https%3A%2F%2Fexample.com%2Fsearch%3Fquery%3Dhello%20world%26category%3Ddev%20tools%26tag%3Dfast%23section

Key Capabilities

Component mode (encodeURIComponent) for query parameter values

Full URL mode (encodeURI) preserving protocol and slashes

Instant live bidirectional conversion

Malformed URI sequence error detection

Zero server upload: Runs strictly in your browser

Beautify, validate, minify, and inspect JSON payloads entirely in your browser.

Encode plain text to Base64 or decode Base64 strings to UTF-8 text in real time.

Generate cryptographically secure RFC 4122 Version 4 UUIDs in bulk.