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Percent-encode URLs and query parameters or decode them back to readable text — instantly and privately.
URL Encode & Decode
Encode or decode URL components easily and securely.
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Why use our URL Encoder / Decoder?
Encode & Decode URLs
Convert special characters to percent-encoded format or decode them back to human-readable text instantly.
Query String Safe
Properly encodes characters like spaces, &, =, and # that would break URL query parameters.
Fully Private
All encoding and decoding happens locally in your browser — no data is sent anywhere.
Instant Results
No button clicks or form submissions — output updates in real time as you type.
What is URL Encoding?
How to Encode or Decode URLs
Frequently Asked Questions
What is URL encoding?
URL encoding (also called percent-encoding) converts characters that are not allowed in URLs into a '%XX' format where XX is the hexadecimal ASCII code. For example, a space becomes %20.
When do I need to URL encode a string?
Whenever you include special characters in a query parameter, form field, or API path. Characters like spaces, &, =, ?, #, and non-ASCII text must be encoded to form valid URLs.
What's the difference between encodeURI and encodeURIComponent?
encodeURI encodes an entire URL, leaving characters like / and ? intact. encodeURIComponent encodes a single component (like a query value), encoding those characters too. This tool uses full component encoding.
Should I encode the entire URL or just the parameters?
Only encode the individual parameter values, not the full URL. Encoding the entire URL would corrupt the slashes and protocol, making it invalid.