Website Tools

URL Encoder / Decoder

Instantly encode or decode URLs and query strings, right in your browser.

Free & instant No signup How to use FAQ

Enter text or URL

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Enter text or a URL below to instantly encode or decode it - entirely in your browser, nothing is sent to our servers.

Recent Searches

HTML Validator - example.com 3 seconds ago

What is URL encoding?

URL encoding (percent-encoding) replaces characters that are not allowed in URLs - spaces, &, ?, # and non-ASCII letters - with a % followed by their hex code, so a space becomes %20. Decoding reverses it. This tool does both in your browser.

How to encode or decode a URL

Paste the URL or text into the box above.
Click Encode to percent-encode it, or Decode to turn %XX codes back into characters.
Check the result in the output box.
Click Copy Result to use it.

Related checks

To split a URL into its parts, use the URL Parser.
To encode binary-safe text instead, use the Base64 Encoder / Decoder.

Encoding uses percent-encoding: characters that have a special meaning in URLs - spaces, &, =, ?, /, # - and any non-ASCII letters are replaced by % followed by their UTF-8 byte values, so a space becomes %20. That makes text safe to use as a single query-string value or path segment. Decoding reverses the process. Encode each value on its own rather than a complete URL; otherwise the :// and / characters of the URL itself get encoded too. JustChecker builds tools that respect your data - this one never leaves your browser.

Frequently Asked Questions

No - this tool runs entirely in your browser using JavaScript. Nothing you type is transmitted anywhere.

Whenever text (like a search query, a space, or special characters such as & or #) needs to be safely included in a URL - for example, in a query string parameter.

It uses standard percent-encoding (the same as JavaScript's encodeURIComponent), replacing reserved and non-ASCII characters with their %XX equivalents.

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