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URL Encode

Safely encode strings to URL-safe format.

100% Client-Side Local Execution
Input Data
1
Transformed Result
1

What is URL Encode?

This url encode tool converts text into a percent-encoded, URL-safe string by replacing spaces, slashes, and other reserved characters with their %XX escape codes. It's the standard way to safely pass query parameters, search terms, or special characters inside a URL. A reliable url encoder online for query strings, form data, and API requests.

Technical Execution

The tool applies percent-encoding per the URI specification: each character that isn't in the small set of unreserved characters (letters, digits, and a few symbols like - _ . ~) is replaced with a % followed by its hexadecimal byte value, with multi-byte UTF-8 characters encoded as multiple %XX sequences.

Zero Data Storage Guarantee

Text being URL-encoded often includes search queries, tokens, or form values about to be sent somewhere else. This tool runs the encoding locally in your browser, so the string you type is never logged or transmitted before you use it yourself.

How to Use URL Encode (Step-by-Step Guide)

  1. Type or paste the text you want to encode
  2. The tool percent-encodes it automatically as you type
  3. Review the encoded output string
  4. Copy the url-safe encoded result
  5. Paste it into your query string, form field, or API request

Frequently Asked Questions (FAQ)

Q: What's the difference between this and percent encode url specifically?
A: URL encoding and percent-encoding are the same thing — percent-encoding is the technical term for the %XX replacement scheme that URL encoding uses.
Q: Is this url encoder online free?
A: Yes, free with no limits or account needed.
Q: Why does a space become %20 instead of a plus sign?
A: Standard percent-encoding uses %20 for spaces; the plus-sign convention for spaces is specific to the application/x-www-form-urlencoded format used in form submissions, not general URL encoding.
Q: Does it encode the whole URL or just a value?
A: This tool encodes whatever text you paste in, which is typically a single query parameter value or path segment rather than a full URL with its scheme and domain intact.
Q: What happens to letters, numbers, and common symbols?
A: Unreserved characters (A-Z, a-z, 0-9, and - _ . ~) are left unchanged since they're already safe inside a URL.
Q: Can I encode url string with non-English characters?
A: Yes, non-ASCII characters are converted to their UTF-8 byte representation and then percent-encoded, which is the standard approach for internationalized text in URLs.
Q: How is url-encode different from url-decode?
A: This tool converts plain text into a percent-encoded safe string; url-decode does the reverse, turning a percent-encoded string back into readable text.
Q: Should I encode an entire URL including http:// and the domain?
A: No, encoding the scheme and domain would break the URL — only encode individual parameter values or path segments that contain special characters.
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