URL Encode/Decode
Encode and decode URLs for web development and data transmission
How to Use URL Encode/Decode
Select whether you want to encode or decode
Enter your URL or text in the input field
Get instant results as you type
About URL Encoding & Decoding
What is URL Encoding?
URL encoding (also known as percent-encoding) converts characters that are unsafe for URLs into a percent sign followed by two hexadecimal digits. Spaces become %20, ampersands become %26, and so on. It ensures text can be safely included in a URL without breaking its structure.
Why Use URL Encoding?
The HTTP protocol only allows certain characters in a URL. All other characters must be encoded before transmission. This includes spaces, special symbols, non-ASCII characters, and reserved characters like &, =, and #. Proper encoding prevents broken links and data corruption.
Frequently Asked Questions
When should I URL encode?
Encode whenever you are appending user input or dynamic data as a query string parameter. For example, a search query like "hello world" should be encoded as "hello%20world" before being placed in a URL.
What is the difference between encodeURI and encodeURIComponent?
encodeURI() encodes a complete URL and skips characters that form the URL structure (like /, :, #). encodeURIComponent() encodes everything including those structural characters — use it for individual parameter values.
Is URL encoding reversible?
Yes. URL decoding always recovers the original string. Switch to Decode mode to convert any percent-encoded string back to plain text.