🔗 URL Encoder & Decoder
📝 Raw / Decoded Text
📋 Encoded / Decoded Result
URL Encoder & Decoder – Percent-Encoding Tool
URL Encoder & Decoder is a secure, client-side utility that converts strings into RFC 3986 percent-encoded format and decodes them back to readable text. It is essential for developers, SEO experts, and webmasters who need to build safe URL query strings or translate unreadable encoded browser paths.
Why is URL Encoding necessary?
URLs can only contain characters from the standard US-ASCII character set.
Reserved characters like spaces, slashes, question marks, and ampersands have special meanings in URLs (separating paths or query parameters).
When non-ASCII characters (such as Cyrillic, emoji, or accented letters) or reserved characters are used in a URL, they must be converted into a safe percentage format (e.g., spaces become %20).
Difference between encodeURI and encodeURIComponent:
- 🌐 encodeURI: Designed to encode a complete, functional URL. It leaves characters like
http://,/,?, and&untouched, ensuring the URL remains browsable. - 🧩 encodeURIComponent: Designed to encode single query parameter values or path segments. It encodes all special characters (including slashes and punctuation), preventing them from breaking the URL structure.
Frequently Asked Questions
encodeURIComponent / decodeURIComponent). Your URLs are never sent to external servers.
%20 is standard for query paths (RFC 3986), while + is historically used in HTML form data submissions (application/x-www-form-urlencoded). You can toggle between these two formats in our options panel.