URL Decode Online

What is URL decoding?

It reverses percent-encoding, converting %20 back to space, %3D back to "=", etc.

When to decode?

• Extract readable parameters from browser address bar.
• Parse query strings or form data on the server side.
• Restore JSON/WebHook payloads that were encoded for transport.

JavaScript quick ref

decodeURIComponent("hello%20world") // "hello world"

Common pitfalls

• Do NOT decode the entire URL—only the query/value parts.
• Malformed sequences like %ZZ will throw; wrap in try/catch.

Privacy note

All operations happen in your browser—no data is sent to our servers.