URL Encoder

Convert special characters in URLs to safe percent‑encoded format

Safe Transmission

Ensures special characters are correctly transmitted in URLs

Percent Encoding

Converts unsafe characters to %XX format

Real‑time Encoding

Encodes as you type or paste – instant results

Privacy First

All processing happens locally in your browser

Online Free URL Encoder

Convert text to a valid URL‑encoded format for use in query parameters, form submissions, and API calls.

Pro Tip: Always encode user‑supplied data before adding to a URL to avoid broken links or security vulnerabilities.

Why Encode URLs?

URL Validity

Spaces, punctuation, and non‑ASCII characters are replaced with safe percent codes
Prevents broken links and malformed requests
Ensures compatibility across all browsers and servers

Security

Helps prevent injection attacks (e.g., URL injection, XSS via query parameters)
Ensures data is properly escaped before transmission

How It Works

URL encoding (percent‑encoding) replaces unsafe ASCII characters with a `%` followed by two hexadecimal digits. Our encoder uses the browser’s built‑in `encodeURIComponent()` function:

Identify Special Characters

Characters like ?, &, =, #, (space), and any non‑ASCII are flagged. Our tool uses encodeURIComponent(), which encodes all reserved characters, making the result safe to use as a query parameter value or in form data.

Convert to Percent Codes

Each unsafe character is replaced by `%` + its ASCII hex code (e.g., space becomes `%20`).

Output Safe URL String

The result is a valid URL‑encoded string ready to be used in links or API parameters.

Frequently Asked Questions

Sample

http://www.quraimsoft.com?id=test12

Converts to:

http%3A%2F%2Fwww.quraimsoft.com%3Fid%3Dtest12

Best Practices

Always encode dynamic query parameters
Use `encodeURIComponent` for values, not the whole URL
Test encoded URLs with special characters like `&`, `#`, and spaces

Common Use Cases

Preparing API request parameters (e.g., search queries)
Creating shareable links with user‑generated content
Passing data in redirect URLs