Free Online URL Encoder & Decoder
Encode special characters for URLs or decode URL-encoded strings instantly. Essential for web developers, SEO professionals, and anyone working with URLs.
What is URL Encoding?
URL encoding converts special characters into a format that can be transmitted over the Internet. Characters like spaces, &, ?, and = have special meanings in URLs and must be encoded.
How URL Encoding Works
Special characters are replaced with a percent sign (%) followed by two hexadecimal digits:
- Space → %20
- & → %26
- ? → %3F
- = → %3D
-
→ %23
How to Use
Encoding
- Select the Encode tab
- Enter your text or URL
- Choose encoding type
- Click "Encode URL"
Decoding
- Select the Decode tab
- Paste encoded string
- Click "Decode URL"
- View original text
Encoding Types
encodeURIComponent (Recommended)
Encodes all special characters. Use for:
- Query parameter values
- Path segments
- Form data
encodeURI
Preserves URL structure characters (://?#). Use for:
- Complete URLs
- When structure matters
Common Use Cases
Query Parameters
?name=John+Doe&city=New+York
→ ?name=John%20Doe&city=New%20York
Special Characters in URLs
https://example.com/search?q=C++ programming
→ https://example.com/search?q=C%2B%2B%20programming
Form Submissions
URL encoding is used for form data in GET requests.
Why Use Our Tool?
- Free & fast - No registration needed
- Privacy focused - Browser-only processing
- Dual encoding options - Choose the right method
- Swap function - Quick encode/decode switching
- Mobile friendly - Works on any device
Perfect for developers and SEO professionals!