Free URL Encoder & Decoder Online | Microapp
Encode and decode URLs and query string parameters instantly. Converts special characters to percent-encoding and back — essential for web development and API testing.
Easily encode or decode your URLs and query string parameters with our free online tool. Whether you need to prepare a URL for safe transmission over the internet or decode a complex query string back into readable text, this tool handles it instantly and securely in your browser.
What is URL encoding and why is it needed?
URLs can only contain a limited set of ASCII characters. Special characters like spaces, ampersands, and non-ASCII letters must be percent-encoded — replaced with a % followed by the two-digit hexadecimal UTF-8 byte value. For example, a space becomes %20 and an ampersand becomes %26.
| Character | Encoded |
|---|---|
| Space | %20 |
| ! | %21 |
| # | %23 |
| & | %26 |
| = | %3D |
| / | %2F |
| ? | %3F |
| @ | %40 |
| [ | %5B |
| ] | %5D |
How to use this tool
- 1Select whether you want to 'Encode' or 'Decode' your text.
- 2Paste your URL or text into the input box.
- 3Click the 'Process' button to generate the result.
- 4Copy the output to your clipboard for use in your project.
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