About the URL Encoder & Decoder tool
The URL Encoder & Decoder converts unsafe or reserved characters in URLs into percent‑encoded representations and back. It is especially handy when working with query strings, redirect rules, APIs, or when embedding URLs inside other URLs.
This tool relies on standard JavaScript functions so you can preview exactly how your URLs will be encoded or decoded in real web applications and scripts.
Typical scenarios for URL encoding
- Encoding spaces, ampersands, and special characters in query parameters.
- Debugging improperly encoded URLs from third‑party systems.
- Preparing redirect rules, API calls, or webhooks that include dynamic URLs.
You can find more developer‑focused utilities such as JSON, SQL, and Markdown tools in the Developer Tools section on the home page.