URL Encode Query Parameters

Encode query parameter values so special characters do not break URLs or API requests.

Example

Raw value:
hello world & status=active

Encoded value:
hello%20world%20%26%20status%3Dactive

Characters to Encode

Key / CodeDescription
space%20 in encoded query values
&%26 so it does not start a new parameter
=%3D so it stays inside the value
#%23 so it does not become a URL fragment

Common Mistake

Encode each query value, not the entire URL. In JavaScript, use encodeURIComponent for parameter values and URLSearchParams for building full query strings.

Related

URL Encoder

Encode and decode URL components.

HTTP Methods

Useful context when building API requests.

Knowledge is power.