URL Encoder & Decoder

Percent-encode URLs for safe query strings — or decode them back.

Input

Output

Why encode URLs?

Spaces, ampersands and non-ASCII characters break query strings. Percent-encoding turns "hello world" into "hello%20world" so links work everywhere — APIs, redirects and share links.

Frequently Asked Questions

Encode full URL or just parameters?

Encode each parameter value separately; encoding a full URL would also encode :// and break it.

What's the difference from Base64?

URL encoding is for making text URL-safe; Base64 represents binary as text.

Is decoding safe?

Yes — decoding only transforms text, it never executes anything.