URL Encoder/Decoder
Encode and decode URL components
Enter text to encode
All processing happens locally in your browser. No data is sent to any server.
About URL Encoder/Decoder
Encode and decode URL components using percent-encoding, the standard mechanism for representing special characters in URLs. When building API requests, form submissions, query strings, or redirect URLs, special characters like spaces, ampersands, and equals signs must be percent-encoded to be transmitted correctly. This tool supports both full URI encoding (preserving URL structure) and component encoding (encoding all reserved characters). All encoding and decoding runs locally in your browser.
How to Use URL Encoder/Decoder
- Paste text containing special characters to encode it for use in URLs.
- Or paste a percent-encoded string to decode it back to readable text.
- Choose between full URI mode and component mode based on your needs.
- Copy the result using the copy button.
URL Encoder/Decoder FAQ
What is the difference between full URI and component mode?
Full URI mode preserves URL structure characters like /, ?, and #. Component mode encodes all reserved characters, which is what you need for individual query parameter values.
Can I decode percent-encoded strings?
Yes. Switch to decode mode and paste a percent-encoded string to convert it back to readable text.
When do I need URL encoding?
URL encoding is required when including special characters in query strings, form data, redirect URLs, API parameters, and any context where characters like &, =, spaces, or unicode must be safely embedded in a URL.
What is percent-encoding?
Percent-encoding represents a byte as a % followed by two hex digits. For example, a space becomes %20, and an ampersand becomes %26.
Is my data sent to a server?
No. All encoding and decoding runs locally in your browser using standard JavaScript APIs.