About URL Encoder & Decoder
Percent-encode text for safe use in URLs, or decode an encoded URL back to readable text. Converts spaces, symbols, and non-ASCII characters into the %XX form browsers expect.
How to Use
- Paste the text or encoded URL.
- Choose encode or decode.
- Read the result.
- Copy it into your link or code.
Why Use This Tool?
- Accurate — built on precise, well-tested mathematical formulas.
- Instant — all calculations happen client-side for zero latency.
- Private — no data is sent to any server; your information stays on your device.
- Free — no sign-up, no limits, no hidden costs.
Frequently Asked Questions
What is URL encoding?
URL (percent) encoding replaces characters that are unsafe or reserved in a URL with a % followed by their hex code — for example a space becomes %20 and & becomes %26.
When should I encode a URL?
Encode query-string values that may contain spaces, symbols, or non-English characters, so the URL stays valid and the value is transmitted correctly.
What is the difference between encodeURI and encodeURIComponent?
encodeURI keeps URL structure characters (like / and ?) intact for a full URL, while encodeURIComponent encodes them too — use it for individual query values.