URL Encoder Decoder
Escape query strings, redirect values, and API parameters without sending the text to a server.
Input
Paste URL text to encode or decode
Output
Encoded or decoded URL output
Enter URL text, then choose Encode URL or Decode URL.
When to URL encode
Use URL encoding when spaces, ampersands, equals signs, or non-ASCII characters need to travel safely inside a URL parameter.
Validation behavior
Decode mode reports malformed percent escapes instead of returning partial or misleading output.
What this URL Encoder does
Use this URL encoder and decoder to percent-encode or decode URL components. It is useful for query parameters, callback URLs, OAuth redirects, and copied links from logs.
When developers use it
- Encode spaces, ampersands, equals signs, and non-ASCII text for URL parameters.
- Decode percent-escaped URLs while debugging API calls or redirects.
- Prepare shareable strings without sending them to a remote service.
Privacy, input, and output
URL encoding and decoding run locally in the browser.
Paste text or an encoded URL component, then choose encode or decode. The output shows the transformed URL text ready to copy.
Validation rules and limitations
- Invalid percent-escape sequences may be rejected by the decoder.
- The tool transforms text; it does not validate whether a remote URL exists.