URL Encoder & Decoder

URL encoding (percent-encoding) converts special characters into a format that can be transmitted over the internet. For example, a space becomes %20.

Paste your URL or text, click Encode to convert special characters to percent-encoding, or click Decode to reverse the process.

Yes, 100% free with unlimited use. No registration required.

All processing runs in your browser. No data leaves your device.

encodeURI preserves URL structure characters (://?#), while encodeURIComponent encodes everything. Our tool supports both modes.