URL Encoder / Decoder

Encode or decode a UTF-8 URL component for query values and path segments.

Convert in your browser · No sign-up

Processes one component, not an entire URL. Plus signs remain literal plus signs when decoding; invalid percent escapes are rejected.

Up to 100,000 UTF-16 units per input · 0 / 100,000

How to use

  1. Paste your text or load the example.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

a b&c → a%20b%26c

Details and limitations

Encode or decode a UTF-8 URL component for query values and path segments.

Processes one component, not an entire URL. Plus signs remain literal plus signs when decoding; invalid percent escapes are rejected.

Text stays in your browser; it is not sent to a conversion server.

Format references

Tool page updated: