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URL Encoder Online — Encode Special Characters in URLs Instantly

Rohan SurveMay 6, 20264 min read
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Browser address bar representing URL encoding

URLs can only contain certain characters. Spaces, ampersands, question marks, hash symbols — all of these have special meaning in a URL or will simply break it. When your URL contains any of these characters, you need to encode them first.

The URL Encoder converts any string into a safe, percent-encoded URL format instantly.

What Is URL Encoding?

URL encoding (also called percent encoding) replaces unsafe characters with a % followed by two hexadecimal digits representing the character's ASCII code.

For example:

  • Space becomes %20
  • & becomes %26
  • = becomes %3D
  • # becomes %23
  • + becomes %2B

This ensures the URL is valid and interpreted correctly by browsers and servers.

When You Actually Need URL Encoding

Query string parameters — if you're passing a value like name=Rohan Surve in a URL, the space will break the parameter. Encoded: name=Rohan%20Surve.

Search queries in URLs — passing user search input as a URL parameter requires encoding so special characters don't interfere with the URL structure.

API requests — many APIs require encoded parameters in the request URL. Sending unencoded values causes malformed requests.

Redirect URLs — when passing a return URL as a parameter (like ?redirect=https://rohansurve.in/dashboard), the slashes and colons in the value must be encoded.

Flutter apps — when building HTTP requests in Flutter using Uri.parse() or constructing query parameters manually, encoding special characters correctly prevents request failures.

How to Use the URL Encoder

  1. Go to rohansurve.in/free-tools/url-encode
  2. Paste the string you want to encode
  3. Get the percent-encoded output instantly
  4. Copy and use in your URL or API request

URL Encoding vs HTML Encoding — What's the Difference?

These are two different things that people often confuse:

  • URL encoding converts characters for safe use inside URLs — spaces become %20, & becomes %26
  • HTML encoding converts characters for safe display inside HTML — < becomes &lt;, & becomes &amp;

Use URL encoding for links, query strings, and API calls. Use HTML encoding for displaying text inside web pages.

Both tools are available on this site — URL Encoder and HTML Encoder.

All free at rohansurve.in/free-tools.

Encode Once, Use Everywhere

URL encoding is one of those things that seems trivial until a broken URL causes a production bug. The URL Encoder is here whenever you need it — fast, free, and runs entirely in your browser.

url encoderencodingdeveloper tools

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