URL Encoder
Encode URLs and text for safe use in web applications
Convert text and URLs to percent-encoded format with support for multiple encoding standards and advanced configuration options.
URL Encoder
Free online tool to encode URLs and text for safe use in web applications with support for RFC 3986 and form-urlencoded encoding.
💡 Enter URLs, query parameters, or any text that needs URL encoding
💡 Drag and drop text files or paste content directly
💡 Use Ctrl+Enter (Cmd+Enter on Mac) to quickly encode
Standard URL encoding as defined in RFC 3986. Uses %20 for spaces and preserves unreserved characters.
HTML form encoding standard. Uses + for spaces and follows application/x-www-form-urlencoded rules.
Use + instead of %20 for space encoding (form-urlencoded style)
Example:
"hello world" → "hello+world"Detect URLs and encode components individually (path, query, hash)
Don't encode unreserved characters (A-Z, a-z, 0-9, -, ., _, ~)
Unreserved characters:
A-Z a-z 0-9 - . _ ~• RFC 3986 is standard for URLs in web addresses and API calls
• form-urlencoded is used for HTML form submissions and query parameters
• Space encoding differs between standards (%20 vs +)
• Unreserved characters don't need encoding per URL standards
• Unicode characters are automatically encoded as UTF-8 sequences
Current configuration:
Encoded URL will appear here
Encoding History
(0)No encoding history yet
How URL Encoding Works
Convert URLs and text to percent-encoded format for web safety
Input Text/URL
Enter or upload your URL, query parameters, or text that needs encoding
Configure Settings
Choose encoding options and format settings
Analyze Content
Our tool detects URLs, special characters, and encoding requirements
Get Encoded Result
Copy or download your safely encoded URL or text
Key Features
Comprehensive URL encoding capabilities
Multiple Standards
Support for both RFC 3986 and application/x-www-form-urlencoded encoding standards
Smart URL Processing
Automatically detects URLs and encodes components appropriately
Unicode Support
Handles Unicode characters with automatic UTF-8 encoding
Advanced Options
Configurable space handling, character preservation, and batch processing
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Frequently Asked Questions
What is URL encoding?
URL encoding (percent encoding) converts unsafe characters to a format that can be transmitted over the Internet. It replaces unsafe ASCII characters with a % followed by two hexadecimal digits.
What's the difference between RFC 3986 and form-urlencoded?
RFC 3986 uses %20 for spaces and is standard for URLs, while form-urlencoded uses + for spaces and is used for HTML form submissions. Both use percent encoding for other unsafe characters.
Which characters need to be URL encoded?
Unsafe characters include spaces, quotes, <, >, {, }, |, \, ^, ~, [, ], and `, as well as non-ASCII characters. Unreserved characters (A-Z, a-z, 0-9, -, ., _, ~) don't need encoding.
How are Unicode characters encoded?
Unicode characters are first converted to UTF-8 bytes, then each byte is percent-encoded. For example, 'é' becomes %C3%A9 in UTF-8 URL encoding.
Is URL encoding secure?
Yes, URL encoding is completely secure. It's a standard formatting process, not encryption. All encoding happens in your browser, so your data never leaves your device.