Encoding Tool
URL Encoder / Decoder
Encode text to URL-safe format or decode encoded URLs back to plain text. Perfect for web development, API testing, and handling query strings with special characters.
Encoding Options
Characters: 0
Words: 0
Pro Tips
Encode special chars in URLs
Decode to read URL parameters
Use %20 for spaces in URLs
Always encode query parameters
Insights & Resources
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Frequently Asked Questions
Everything you need to know about URL encoding
What is URL encoding and why is it important?
URL encoding (also called percent-encoding) converts characters that are unsafe or reserved in URLs into a safe format using %XX notation. It's essential for web development because URLs can only contain certain characters. Special characters like spaces, #, &, and ? must be encoded to ensure proper transmission and parsing.
How do I encode a URL with special characters?
Paste your text into our URL Encoder/Decoder tool, select "Encode" mode, and click "Convert". Our tool will automatically encode all special characters to their percent-encoded equivalents. For example, a space becomes %20, and # becomes %23. You can then copy the encoded URL for use in your web applications.
How do I decode a URL back to plain text?
Switch to "Decode" mode in our tool, paste your encoded URL, and click "Convert". The tool will decode all percent-encoded characters back to their original form. This is useful for reading query parameters, debugging URL issues, or understanding what's being sent in API requests.
What's the difference between %20 and + in URL encoding?
%20 is the standard percent-encoding for spaces in URLs (RFC 3986). The plus sign (+) is used for spaces in application/x-www-form-urlencoded data (HTML form submissions). Our tool supports both: use %20 for URL paths and query strings, and + for form data submissions.
What characters need to be encoded in a URL?
Reserved characters that must be encoded include: space ( ), #, $, %, &, ', (, ), *, +, ,, /, :, ;, =, ?, @, [, ], and more. Unreserved characters (A-Z, a-z, 0-9, -, _, ., ~) can remain unencoded. Our tool automatically handles all encodings following RFC 3986 standards.
Is URL encoding the same as HTML encoding?
No, they serve different purposes. URL encoding (percent-encoding) is for URLs and query strings, using %XX format. HTML encoding converts characters to HTML entities (like < for <, > for >) for safe display in HTML. Use URL encoding for URLs and HTML encoding for text displayed on web pages.
Does URL encoding affect SEO?
Yes, proper URL encoding can indirectly affect SEO. Clean, readable URLs with proper encoding are easier for search engines to crawl and index. Avoid using spaces, special characters, or non-ASCII characters in URLs. Use hyphens (-) instead of spaces, and always encode special characters in query strings.
How can I test if my URL is properly encoded?
Use our URL Encoder/Decoder tool's decode function to check if a URL decodes properly. A properly encoded URL should decode cleanly without errors. You can also test by copying the encoded URL into a browser's address bar - if it loads correctly, it's properly encoded. Always encode dynamic URLs and query parameters.