Encode and Decode URLs Online
This free URL encoder and decoder converts text into URL-safe percent-encoded form and decodes it back. Paste your text or encoded URL, choose Encode or Decode, and copy the result. It is the quick way to build safe query strings, debug links, and read the encoded parameters in a URL.
How to Use the URL Tool
- Paste your text or URL into the input box.
- Choose Encode to make it URL-safe or Decode to read it.
- Press Convert, then copy the output.
What URL Encoding Is
URLs can only contain a limited set of characters. Spaces, accented letters, and many symbols (like &, ?, /, and #) have special meaning or are not allowed, so they must be replaced with a percent sign followed by a hex code — a space becomes %20, an ampersand becomes %26, and so on. This is called percent-encoding or URL encoding. Encoding makes arbitrary text safe to drop into a URL or query string; decoding turns those %-codes back into readable characters.
Where URL Encoding Is Used
Anytime data travels in a URL it should be encoded. Search queries, tracking parameters, redirect URLs passed as parameters, and form data submitted via GET all rely on it. Developers encode values before building a link so that special characters do not break the URL or get misinterpreted, and decode incoming parameters to read what was sent. It is also handy for debugging — pasting a long, encoded URL here and decoding it makes the parameters human-readable.
Encoding the Whole URL vs. a Parameter
A key distinction: you usually encode the values inside a URL, not the entire URL. This tool uses component encoding, which escapes characters like &, =, ?, and / — correct for a single parameter value, since those characters would otherwise be read as URL structure. If you encoded a complete URL with it, the slashes and colons would be escaped too. So encode each parameter value, then assemble them into the URL with the literal separators in place.
Private and Instant
The tool uses your browser’s built-in encoding functions, so nothing is uploaded and results are instant. It handles full Unicode, so non-English characters encode correctly. There is no signup and no limit, making it a fast everyday utility for anyone working with links.
Frequently Asked Questions
What does %20 mean in a URL?
%20 is the URL-encoded form of a space. Decoding it returns a normal space.
How do I decode a URL?
Paste it above, choose Decode, and press Convert to turn the %-codes back into readable text.
Is the URL encoder free and private?
Yes — it is free, needs no signup, and runs entirely in your browser.
Query Strings and Tracking Links
URL encoding is the quiet workhorse behind every link that carries data. Search queries, filters, pagination, and especially marketing tracking parameters (the UTM tags on campaign links) all ride in the query string, and any value containing a space, ampersand, or special character must be encoded or the URL breaks. Marketers building campaign URLs and developers constructing API requests both rely on encoding to keep those values intact. Decoding is the flip side: paste a long, cryptic tracking URL and decode it to see exactly what parameters and values it carries.
The most common pitfall is encoding too much or too little. You encode the individual values that go into a URL — a search term, a redirect target, an email address — not the structural characters that separate them. The colons and slashes in https://, and the ? and & that delimit parameters, should stay literal. This tool uses component encoding, which is the right choice for encoding a single value before you slot it into a URL. Assemble the encoded values with the literal separators, and your links will work reliably across browsers and servers.