URL Encoder/Decoder | URL Encoding & Query Parameter Parser

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URL Encoder / Decoder

Encode and decode URLs, parse query parameters, and build URLs with an interactive editor

Developer Tools

URL Encode

encodeURIComponent

Input Text or URL

URL Decode

decodeURIComponent

Encoded Input

About URL Encoding

URL encoding (also known as percent-encoding) converts special characters into a format that can be safely transmitted over the internet. Characters are replaced with a percent sign (%) followed by two hexadecimal digits.

Common Encoded Characters:

Space → %20 (or +)
! → %21
# → %23
$ → %24
% → %25
& → %26
= → %3D

When to Use:

Passing data in URL query parameters
Building API requests with special characters
Creating shareable links with user input
Encoding form data for HTTP requests
Working with URLs containing non-ASCII characters

Note: This tool uses encodeURIComponent() for encoding and decodeURIComponent() for decoding, which is the standard method for encoding URL parameters in JavaScript.