Free URL Encoder Decoder Online - Percent Encoding Tool

About URL Encoding (Percent Encoding)

URL encoding, also known as percent encoding, is a mechanism for encoding information in URIs. It's used when data contains characters that are reserved or unsafe for URLs.

Encoding Modes:

• URL Encode - Encodes entire URLs including special characters (?&+=)
• Encode Component - For encoding URL parts (query values, path segments)
• Encode Form Data - For HTML form submissions (application/x-www-form-urlencoded)

Reserved Characters:

: / ? # [ ] @ ! $ & ' ( ) * + , ; =

Common Encodings:

• Space: %20 or + (in query strings)
• !: %21
• #: %23
• $: %24
• %: %25
• &: %26
• =: %3D
• ?: %3F
• +: %2B

Examples:

URL Encode:
8gwifi.org?q=a+b&r=123 → 8gwifi.org%3Fq%3Da%2Bb%26r%3D123

Encode Component (for query values):
a+b → a%2Bb
[email protected] → user%40example.com