URL Encoder / Decoder
Encode or decode URL components. Safely handle special characters in URLs.
Tool guide
About URL Encoder & Decoder
URL encoding converts unsafe or reserved characters into percent-encoded sequences so values can be safely placed in query strings, paths, or form submissions. Decoding reverses those sequences for inspection.
Use this tool when debugging copied URLs, API query parameters, redirects, and callback URLs. Encode only the component you need, not necessarily the entire URL.
Common use cases
- Encode query parameter values before testing an API.
- Decode redirect URLs and callback parameters.
- Inspect tracking parameters in a copied URL.
- Troubleshoot spaces, ampersands, and non-ASCII characters in URLs.
Practical tips
- Encode query parameter values with component encoding.
- Do not double-encode an already encoded URL unless the receiving service expects it.
- Spaces may appear as %20 or + depending on the context.
Related tools
Frequently asked questions
What is URL encoding?
URL encoding replaces characters with percent-encoded byte sequences so they can be safely used in URLs.
Should I encode the whole URL or only part of it?
Usually encode only a component such as a query parameter value. Encoding the whole URL can encode separators like : and /.
Why do I see %20 in URLs?
%20 is the encoded representation of a space character in many URL contexts.
Is URL Encoder & Decoder free to use?
Yes. URL Encoder & Decoder is free to use in your browser with no signup required.
Is my data uploaded when I use URL Encoder & Decoder?
Most FreeTools utilities process data locally in your browser. Tools that call third-party services, such as IP lookup and advertising, are disclosed in the privacy policy.
What can I use URL Encoder & Decoder for?
Free online URL encoder and decoder. Encode special characters for safe URLs or decode encoded URLs back to readable text.