URL Encoder/Decoder
Encode or decode URLs for use in web applications and APIs.
URL Encoding Reference
URL encoding replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits.
| Character | URL Encoded | Description |
|---|---|---|
| Space | %20 | Space character |
| / | %2F | Forward slash |
| ? | %3F | Question mark |
| # | %23 | Hash/pound |
| & | %26 | Ampersand |
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About the URL Encoder/Decoder
The URL Encoder/Decoder converts text to and from percent-encoding, the format that lets spaces and special characters travel safely inside a web address. Encode a value for a URL, or decode an encoded URL back to readable text.
URLs can only contain certain characters, so spaces, ampersands, and symbols must be percent-encoded to work in links and query strings. Encoding and decoding correctly prevents broken links and reveals what an encoded URL actually contains.
Everything runs in your browser, so your data never leaves your device. There’s no upload or account; paste a value and convert it instantly.
How to use the URL Encoder/Decoder
- Paste the text or URL into the input area.
- Choose whether to encode or decode.
- Run the conversion.
- Review the result.
- Copy the encoded or decoded value for use.
Common use cases
- Encoding a query-string value so special characters don’t break the URL.
- Decoding an encoded URL to read its real contents.
- Preparing text for safe inclusion in a link.
- Debugging why a URL with special characters isn’t working.
Frequently asked questions
What is percent-encoding?
It replaces unsafe characters with a percent sign followed by their hex code (for example a space becomes %20), so they can be safely included in a URL.
When do I need to encode a URL?
Whenever a value placed into a URL contains spaces, symbols, or non-ASCII characters, encoding ensures the link works correctly across systems.
Is this the same as Base64?
No. URL encoding is specific to making text URL-safe, while Base64 is a different encoding for general binary-to-text. Use the Base64 tool for that.
Is my data uploaded anywhere?
No. Encoding and decoding happen in your browser, so your data never leaves your device.
Why does my decoded text look wrong?
If the input wasn’t actually percent-encoded, decoding can produce unexpected results. Confirm the source is encoded before decoding it.