What is URL encoding?

URL encoding (percent-encoding) replaces unsafe ASCII characters with a '%' followed by two hex digits. For example, a space becomes %20 and '&' becomes %26. This ensures special characters are transmitted correctly in URLs.

What's the difference between encodeURI and encodeURIComponent?

encodeURI encodes a full URI, preserving characters like :, /, ?, # that have special meaning in URLs. encodeURIComponent encodes everything except letters, digits, and - _ . ~, making it ideal for encoding query parameter values.

Is this tool private?

Yes. All encoding and decoding happens in your browser. Nothing is sent to any server.

URL Encoder & Decoder

Encode or decode URLs and query parameters. Supports encodeURI and encodeURIComponent.

No signup. 100% private. Processed in your browser.

Input

Common Encodings

Space%20

&%26

=%3D

?%3F

/%2F

#%23

+%2B

@%40

How to use this tool

1

Paste a URL or encoded string

2

Choose Encode (Component or URI) or Decode

3

Copy the result

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