URL Encoder & Decoder Online
Use this free online URL Encoder & Decoder tool to encode or decode URLs and query strings using percent-encoding. All processing is done locally in your browser.
How it works & FAQ
Why this is secure?
URL encoding and decoding run in your browser's JavaScript environment. No data is transmitted to any server.
Step-by-Step Guide
- 1Paste your URL or text string into the input field.
- 2Click 'Encode' to percent-encode special characters, or 'Decode' to reverse the encoding.
- 3Copy the encoded or decoded result.
Frequently Asked Questions (FAQ)
What is URL encoding?
URL encoding (percent-encoding) converts special characters into a %XX format so they can be safely transmitted in URLs. For example, spaces become %20.
When do I need to URL-encode something?
When passing user input in query strings, embedding URLs inside other URLs, or constructing API request parameters programmatically.
What's the difference between encodeURI and encodeURIComponent?
encodeURI encodes a full URL, preserving characters like /, ?, &, and =. encodeURIComponent encodes a single component (like a query value), converting those characters too.
Encoding and decoding run in your browser. No data is sent to any server.