URL Encoder / Decoder
Encode and decode URL components safely.
About this tool
When transmitting data in URLs (query parameters, path segments, fragments), special characters must be percent-encoded. This tool applies standard RFC 3986 URL encoding so your parameters are safe and compliant — all done locally.
How to use the URL Encoder / Decoder
- Paste the string you want to encode or decode
- Click Encode to apply encodeURIComponent
- Click Decode to reverse the encoding
- Copy the encoded/decoded result for use in URLs
Features
- RFC 3986 compliant encoding
- Handle reserved and Unicode characters
- One-click copy to clipboard
- Instant results
- No server round-trip
Frequently asked questions
Is this URL encoder free?
Yes. Encode and decode URL components online for free without registration.
What characters need URL encoding?
Reserved characters like spaces, ampersands, slashes, and non-ASCII characters must be percent-encoded for safe use in URLs.
Does it use encodeURIComponent?
Yes. The tool applies standard RFC 3986 percent-encoding to ensure your data is URL-safe.
Is my data sent to a server?
No. All encoding and decoding runs locally in your browser.