URL Encoder
Encode any text or URL into a percent-encoded string instantly. Safely encode special characters for use in query strings, form data, and API requests
URL TEXT
Encode Decode
Tip: paste text or a URL on the left — output updates instantly.
Runs 100% Locally in Your Browser
This tool processes your data entirely on your device. Nothing is uploaded, stored, or sent to any server.
No Uploads
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Secure by Default
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Frequently Asked Questions
What is URL percent encoding?
Percent encoding replaces unsafe or reserved URL characters with a % followed by their two-digit hexadecimal ASCII code (e.g., space becomes %20).
How to encode a URL with special characters online?
Paste your text or URL into the input and the tool instantly outputs the percent-encoded version.
Which characters need to be percent-encoded in a URL?
Characters outside the safe set — spaces, &, =, ?, #, /, and non-ASCII characters — must be encoded in query strings and path segments.
What is the difference between URL encoding and Base64 encoding?
URL encoding makes characters safe for use inside URLs; Base64 converts binary data to ASCII text for transport — they serve different purposes.
When should I encode a full URL vs only a query parameter?
Encode only the parameter values, not the entire URL — encoding the full URL would break the protocol, domain, and path separators.
Does the URL Encoder work without an internet connection?
Yes — once loaded, all encoding runs in your browser with no server calls needed.