How to Use the URL Encode & Decode Tool
URLs can only contain certain ASCII characters. Special characters like spaces, ampersands, and Unicode characters must be percent-encoded. The ToolPrime URL Encoder/Decoder handles both directions instantly, supporting encodeURIComponent and encodeURI modes.
1 Open the URL Tool
Navigate to the URL Encode & Decode tool page.
2 Choose encode or decode
Select the Encode tab to percent-encode text, or the Decode tab to decode a URL string.
3 Enter your text
Paste or type the text or URL-encoded string into the input area.
4 Copy the result
The converted output appears instantly. Click copy to grab it.
Common Use Cases
- Encoding query parameters for API requests
- Decoding URLs from analytics or log files
- Preparing text for use in mailto: links
- Debugging encoded characters in URLs
Pro Tips
Use encodeURIComponent for query parameter values.
Use encodeURI for full URLs (preserves colons, slashes, and other structural characters).
Spaces are encoded as %20 in URLs, not as plus signs (that is form encoding).
Try it yourself
Open URL Encode & Decode