Developer

URL Encode / Decode

Safely encode URLs and query string components, or decode percent-encoded text back to readable form. Handles full URLs and individual components.

Examples

Input · Component encode

a b&c=1

Output

a%20b%26c%3D1

How it works

The tool has two scopes because the two jobs need different rules. Component escapes everything that is not a letter, a digit or one of - _ . ! ~ * ' ( ), which is right for a single query value. Full URL leaves the characters that give a URL its structure, such as : / ? # & and =, untouched.

The same input, encoded both ways
Scope	a b&c=1 becomes
Component	a%20b%26c%3D1
Full URL	a%20b&c=1

A space is always written as %20, never as +, and decoding leaves a + as it is. If decoding fails, the input has a % that is not followed by two valid hex digits.

How to use URL Encode / Decode

Enter text

Paste the URL or text you want to convert.

Pick a mode

Component mode encodes everything; full-URL mode preserves structure.

Copy

Copy the encoded or decoded output.

Why use this tool

Component and full-URL modes

Round-trips safely

Instant conversion

Private

Frequently asked questions

What is the difference between the two modes?

Component mode (encodeURIComponent) encodes reserved characters like & and =. Full-URL mode (encodeURI) keeps them so the URL stays valid.

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