Encode and decode URLs with support for component-level and full URL encoding. Perfect for web development, API integration, and SEO optimization.
Uses encodeURIComponent()
Perfect for encoding individual parts like query parameters, form data, or path segments. Encodes all special characters including reserved URL characters.
Uses encodeURI()
Ideal for encoding complete URLs while preserving URL structure characters like : ? & =
URL encoding, also known as percent-encoding, is a mechanism for encoding information in URLs where certain characters have special meanings or are not allowed. This encoding ensures that URLs are transmitted correctly across different systems and protocols.
When you include special characters like spaces, ampersands, or non-ASCII characters in URLs, they must be encoded to prevent conflicts with URL syntax. For example, a space character becomes %20, and an ampersand becomes %26.
Our tool provides both component-level encoding for individual URL parts (like query parameters) and full URL encoding that preserves the overall URL structure while encoding unsafe characters.
The encoder identifies characters that need to be encoded based on URL safety rules and reserved character sets.
Each unsafe character is converted to its percent-encoded form using the format %XX where XX is the hexadecimal ASCII value.
The encoded URL can now be safely transmitted across different systems without losing data or causing parsing errors.
The receiving system decodes the percent-encoded characters back to their original form for proper interpretation.
Encode individual URL components like query parameters and form data with encodeURIComponent().
Encode complete URLs while preserving structure using encodeURI() for proper URL formatting.
Instant validation and error detection with detailed feedback for invalid input.
Automatic parsing and breakdown of URL components including protocol, domain, path, and query parameters.
One-click copy to clipboard and direct URL opening for quick testing and sharing.
Complete reference table showing how common characters are encoded for learning and debugging.
Properly encoded URLs ensure clean, readable URLs that search engines can crawl and index effectively. This improves your site's discoverability and ranking potential.
URL encoding allows you to include international characters and Unicode symbols in URLs, making your content accessible to global audiences and improving international search rankings.
Improperly encoded URLs can cause 404 errors or broken links that hurt SEO. Correct encoding ensures all your pages are accessible to search engine crawlers.
Clean, properly encoded URLs provide more accurate analytics data, helping you understand user behavior and optimize your content strategy for better search performance.
Properly encoded URLs ensure your content displays correctly when shared on social media platforms, improving click-through rates and social signals for SEO.
Correct encoding of query parameters prevents issues with tracking codes, campaign parameters, and dynamic content, ensuring accurate SEO performance measurement.
Well-encoded URLs reduce server errors and improve response times, which is a direct ranking factor for search engines like Google.
Clean URLs are more user-friendly and trustworthy, leading to higher click-through rates from search results and better overall SEO performance.
Use component encoding when encoding individual parts like query parameters or form data. Use full URL encoding when you need to encode an entire URL while preserving its structure (protocol, domain, path separators remain unencoded).
Spaces are not allowed in URLs according to the URI specification. The %20 represents the hexadecimal ASCII value of a space character (32 in decimal = 20 in hex). This ensures the space is properly transmitted and interpreted.
Proper URL encoding ensures search engines can crawl your pages without errors, improves international SEO with Unicode characters, prevents broken links that hurt rankings, and creates clean URLs that users trust and are more likely to click.
Yes! All encoding and decoding happens locally in your browser using JavaScript's built-in functions. Your URLs and data never leave your device, ensuring complete privacy and security for sensitive information.
URL encoding is specifically designed for URLs and only encodes characters that are unsafe or reserved in URLs. Base64 encoding converts all data to a different character set and is used for binary data transmission, not URL formatting.
Start using our powerful URL encoder/decoder tool. Perfect for web developers, SEO professionals, and anyone working with URLs and web APIs.
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