URL Encoder Decoder Tool
Encode or decode URLs and URI components. Free, fast, and runs 100% in your browser.
URLs cannot contain spaces, special characters, or non-ASCII text without encoding. This tool converts special characters to their percent-encoded equivalents and decodes encoded URLs back to readable form. Essential for building API query strings, debugging redirect URLs, and handling internationalized domain names.
encodeURIComponent — Encodes special chars including :, /, ?, &, =, #
Feature Overview
| Feature | Details |
|---|---|
| Encode | ✓ |
| Decode | ✓ |
| Full URL support | ✓ |
| Unicode support | ✓ |
| Privacy | 100% client-side |
Frequently Asked Questions
What characters need URL encoding?
Spaces, ampersands (&), equals (=), question marks (?), hash (#), and non-ASCII characters like accented letters and emoji.
What is the difference between encodeURI and encodeURIComponent?
encodeURI preserves URL structure characters (://?#) while encodeURIComponent encodes everything — use the latter for query parameter values.
Can I decode a full URL with query parameters?
Yes. Paste the entire URL and the decoder will convert all percent-encoded sequences back to readable characters.