Developer Tools
URL Encoder / Decoder
Percent-encode and decode URL components.
Runs locally in your browser — your input is not uploaded.
Enter text to encode or a percent-encoded string to decode.
How to use
- Paste the text or encoded string.
- Click Encode or Decode.
- Copy the output for use in URLs or query parameters.
About this tool
Percent-encoding (URL encoding) replaces reserved and non-ASCII characters with %HH sequences so they can travel safely in URLs.
This tool uses encodeURIComponent / decodeURIComponent semantics, which is what you usually want for query parameter values.
Examples
Encode a query value
hello world!
hello%20world!
FAQ
Should I encode a full URL?
Usually you encode individual components (like a query value), not the entire URL including :// and /.
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