JSON Formatter
Make your JSON clean, readable, and easy to debug.
Developer Tools
URL Encoder / Decoder
Encode URLs and inspect query parameters.
URL Encoder / Decoder
Powered by UtilBrixHow to use this tool
- Choose whole-URI encoding, component encoding, decoding, or query parsing.
- Paste the URL, individual parameter value, or query string that matches that mode.
- Run the conversion and inspect reserved characters before copying the result.
Formula & method
URI encoding preserves structural characters such as slashes and colons. URI component encoding also escapes those characters, making it suitable for parameter values. Query parsing lists each key-value pair, preserving duplicate parameter keys.
A practical example
The component hello world becomes hello%20world. Query name=Aman&page=2 produces two key-value pairs.
When this tool is useful
Prepare query parameter values, decode escaped URLs, or inspect repeated parameters in a request. Choosing the operation based on whether you have a whole URL or a single value avoids accidentally changing URL structure.
Common mistakes and limitations
- Encoding a complete URL as a component escapes separators such as slashes and colons.
- Encoding an already encoded value can turn percent signs into %25 and create unwanted double encoding.
Frequently asked questions
Which mode should I use for a parameter containing an ampersand?
Encode URI Component protects the ampersand as part of the value so it does not become a separator between parameters.
Why does a plus sign sometimes become a space?
Query-string parsing follows form-style query conventions, where plus commonly represents a space. Direct URI-component decoding follows a different operation; select the mode that matches your source.