URL Encoder
Percent-encode special characters so query strings and path segments work correctly in URLs.
Encode special characters in URLs and text strings using percent-encoding (also known as URL encoding). This process converts characters that have special meaning in URLs or aren't allowed in certain contexts into percent-encoded sequences. Essential for web development, API integration, and ensuring data is transmitted safely in HTTP requests.
What is URL Encoder?
URL encoding, also called percent-encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI). Certain characters like spaces, ampersands, and non-ASCII characters must be encoded to be safely transmitted in URLs. The encoding replaces these characters with a percent sign (%) followed by two hexadecimal digits representing the character's ASCII code.
Common Use Cases
- Encoding query parameters in API requests to prevent parsing errors
- Preparing form data for URL submission
- Encoding special characters in file paths for web servers
- Creating shareable links with special characters
- Encoding user input before including it in URLs
- Preparing data for HTTP GET requests with query strings
- Encoding international characters (UTF-8) in URLs
How It Works
The URL encoder scans your input text and identifies characters that need encoding according to RFC 3986 standards. Reserved characters (like &, =, ?, #) and unsafe characters (like spaces, non-ASCII) are converted to their percent-encoded form. For example, a space becomes %20, and an ampersand becomes %26. The tool handles UTF-8 encoding for international characters, ensuring proper encoding for all Unicode characters.
Examples
Encoding a query parameter with spaces
search query=hello worldsearch%20query%3Dhello%20worldEncoding special characters
file name & data.txtfile%20name%20%26%20data.txtRelated tools
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Related guides
Tutorials and guides to get more from this tool
URL Encoding & Decoding: Definitive Guide
Fix broken URLs instantly! Master URL encoding/decoding to prevent data loss and API failures. Complete guide with examples for 2025.
URL Validation: Why Regular Expressions Aren't Enough
Validating URLs is harder than it looks. Explore why simple regex fails and how to ensure URLs are properly formatted and safe.
The Art of URL Building: Best Practices for 2025
Master the construction of complex URLs. Learn about protocol relative URLs, proper parameter encoding, and avoiding common pitfalls.
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