Why use this tool
URLs can only contain certain ASCII characters. Special characters like spaces, ampersands, question marks, and accented letters must be encoded using percent-encoding (also called URL encoding) before they can be safely transmitted in URLs and query parameters. Without proper encoding, URLs break, parameters get misinterpreted, and data doesn't reach its destination correctly. Web developers, API users, and anyone building dynamic URLs need reliable URL encoding to ensure data integrity.
Manual URL encoding is error-prone and time-consuming. This free tool instantly converts any text into URL-safe format by replacing special characters with percent-encoded equivalents (like space becoming %20 and & becoming %26). Use it when building API requests, creating shareable URLs with parameters, encoding data for query strings, and ensuring your URLs work correctly across all browsers and platforms.
Key features
- Correct encoding: Converts all special characters to proper percent-encoded format for safe URL transmission.
- Instant results: See encoded output immediately as you type or paste text.
- API-ready format: Output is perfect for API parameters, query strings, and dynamic URLs.
- Supports all characters: Handles spaces, punctuation, international characters, and symbols.
- Free and unlimited: No limits on encoding operations or text length.
- Browser privacy: All encoding happens in your browser. No data is sent to any server.