URL Encoder / Decoder
Encode text to URL-safe format or decode URL-encoded strings. Perfect for query parameters and APIs.
Input
Output
How to Encode/Decode URLs
- Paste text to encode or URL-encoded text to decode
- Click "Encode" to make text URL-safe or "Decode" to reverse
- Result appears instantly in the output field
- Copy and use in URLs, form data, or API requests
Why URL Encoding Matters
Query Parameters
Safely pass user input as URL query strings without breaking the URL structure.
Form Submissions
Form data is encoded before sending via GET requests or form-encoded in POST.
API Requests
URL parameters in REST API calls need proper encoding for special characters.
Security
Prevents injection attacks by encoding special characters safely.
URL Encoder Features
Unicode Support
Properly handles Unicode characters, emojis, and non-ASCII text. All international characters are correctly encoded.
Bidirectional
Both encode and decode work perfectly. Encoding is fully reversible through decoding.
Privacy Focused
100% client-side processing. Your data never leaves your device - no server communication.
Instant Results
Encoding and decoding happens instantly as you type. No delays or processing time.
Frequently Asked Questions
What is URL encoding?
URL encoding (percent encoding) converts special characters to a format safe for URLs. Spaces become %20, & becomes %26, etc. This ensures data is transmitted safely.
When should I use URL encoding?
Use URL encoding for query parameters, form data, path segments, and any user input going into a URL to prevent breaking the URL structure.
What does %20 mean?
%20 represents a space character. The % symbol followed by two hex digits represents the ASCII code of the character.
Can I use + instead of %20?
In query strings, + can represent spaces in form-urlencoded data. This tool uses %20 which is standard and works everywhere.
Does this handle Unicode?
Yes, Unicode characters are properly encoded as UTF-8 sequences. Emojis and non-ASCII characters are fully supported.
Is my data private?
Yes, all encoding/decoding happens in your browser. Your data never leaves your device and is completely private.
About URL Encoding
URL encoding is essential for safe data transmission in web applications. It ensures that special characters don't interfere with URL syntax or get misinterpreted by servers.
Common Applications:
- Query Parameters: Safely pass user input as URL query strings
- Form Submissions: Application/x-www-form-urlencoded format
- Search Queries: Search terms encoded before sending to servers
- API Requests: URL parameters in REST API calls
- Security: Prevents injection attacks by encoding special characters
- International Content: Non-ASCII characters must be encoded for URLs