URL Encoder & Decoder

About URL Encoder & Decoder

Our free URL encoder and decoder tool makes it easy to encode text for URLs and decode percent-encoded URLs. URL encoding (also known as percent encoding) converts special characters into a format that can be safely transmitted over the internet. This tool handles both component encoding (for query parameters) and full URL encoding, making it essential for developers, API integration, and web development.

What is URL Encoding?

URL encoding is a method for converting characters into a format that is safe for transmission over the internet. Certain characters have special meaning in URLs (like ? and &), so they must be encoded as percent-encoded sequences. For example, a space becomes %20, and an ampersand (&) becomes %26. This tool provides two types of encoding: component encoding for URL parameters and full URL encoding that preserves URL structure.

Key Features

• Encode URL Component: Safely encode query string parameters using encodeURIComponent
• Encode Full URL: Encode complete URLs while preserving protocol and structure
• Decode URLs: Convert percent-encoded strings back to readable format
• Auto-Detect Mode: Automatically detect if input is encoded or plain text
• UTF-8 Support: Full Unicode and international character support
• Copy Output: One-click copying of encoded results
• Real-Time Processing: Instant encoding and decoding
• Prettify Option: Format output for better readability

URL Encoding Standards

URL encoding converts special characters to hexadecimal escape sequences. The most common characters that need encoding include spaces (ASCII 32), punctuation marks, and non-ASCII characters. The difference between component encoding and full URL encoding is important: component encoding converts almost all special characters, while full URL encoding preserves URL structure characters like colon (:), forward slash (/), and question mark (?).

Common URL Encoding Use Cases

• Encoding query string parameters for API requests
• Creating safe URLs with special characters or spaces
• Encoding form data for HTTP GET requests
• Processing and validating URLs in applications
• Preparing URLs for sharing or transmission
• Debugging encoded URLs in logs and error messages
• Converting between different URL formats
• Building dynamic URLs with user input

URL Encoder Online for API Integration

When working with APIs and web services, properly encoding URL parameters is critical. Our URL encoder online tool handles both individual parameters and complete URLs, making it perfect for developers building API integrations. The auto-detect feature recognizes encoded input and can decode it automatically, streamlining the development workflow.

Understanding Percent Encoding

Percent encoding (also called URL encoding or percent-encoding) represents characters as a percent sign (%) followed by two hexadecimal digits. For instance, the space character is encoded as %20, the exclamation mark (!) becomes %21, and the at symbol (@) becomes %40. Some characters like letters, digits, and safe characters (-_.~) don't need encoding in URLs, but special characters and spaces must be encoded for safe transmission.

Decode Percent-Encoded URLs

Our URL decoder tool instantly converts percent-encoded strings back to their original format. This is invaluable when debugging APIs, reading server logs, or understanding URL structures in applications. The tool recognizes percent-encoded patterns and converts them back to readable text, supporting full Unicode decoding for international characters and special symbols.