URL Encode/Decode
Input URL or String
Drop file to load
Processed locally in browser
What is it?
The URL Encoder and Decoder is a utility that safely encodes reserved characters in a string into percent-encoded format (like %20 for a space), or decodes them back to readable text.
When should you use it?
Use this tool when constructing complex HTTP GET request URLs, debugging query parameters, or formatting strings to be passed safely through a web form. It is essential when your data contains characters like &, =, or ? which have special meanings in URLs.
How does it work?
It leverages the browser’s native encodeURIComponent and decodeURIComponent JavaScript functions. All string manipulation happens instantly in your computer’s memory.
Example Input (Encode)
https://example.com/search?q=hello world & test
Example Output (Encode)
https%3A%2F%2Fexample.com%2Fsearch%3Fq%3Dhello%20world%20%26%20test
How to Use This Tool
- Paste your URL or text string into the input panel.
- Toggle between Encode and Decode modes to instantly transform the string.
- Copy the safely encoded or decoded URI for use in your applications.
Why use this offline tool?
URLs often contain sensitive query parameters, session tokens, or internal routing structures. This tool ensures your endpoints and parameters are processed locally and are never stored in server logs.
Frequently Asked Questions
What does URL encoding do?▼
URL encoding (also known as percent-encoding) converts special characters in a string into a format that can be safely transmitted over the internet. For example, a space becomes `%20`.
Is this secure?▼
Yes, the encoding and decoding processes run entirely within your web browser using JavaScript's native functions. Your data is not sent anywhere.