Online URL Encoder

Encode text using encodeURIComponent.

Loading tool...

How to use

Paste or type your input in the left editor
Adjust options in the toolbar if available
Copy or download the output from the right pane

This free online tool runs entirely in your browser. No sign‑up, no server uploads.

About URL Encode

Encode text using encodeURIComponent.

The URL encoder examines each character in your input and determines whether it is a URL-safe character (letters, digits, -, _, ., ~) that can pass through unchanged, or a character that must be percent-encoded. Unsafe characters are converted to their UTF-8 byte sequences, and each byte is represented as a percent sign followed by two hexadecimal digits (e.g., space becomes %20, the Euro sign becomes %E2%82%AC). The result is a string that is safe for inclusion in any part of a URL.

Use the left editor to enter your data. The output updates in real time. You can copy, clear, download, or expand either pane.

Tip: Use the search bar to quickly switch between tools.

Sample text

A&B = 1+2

Example input shown above. Output appears in the right pane instantly.

Why this tool?

Feature	URL Encode	Typical alternatives
Free online tool	Yes	Often yes
Client‑side only (privacy)	Yes	Varies
No sign‑up required	Yes	Varies

Explore related tools

Looking for more? Browse All tools or check categories like Beautifier, Minifier, and Validators.

Related tools

FAQs

What characters does URL encoding convert?

URL encoding (percent encoding) converts characters that are not allowed in URLs or have special meaning: spaces become %20, & becomes %26, = becomes %3D, and non-ASCII characters are encoded as their UTF-8 byte sequences in percent-hex notation.

What is the difference between encodeURI and encodeURIComponent?

encodeURI encodes a full URL but preserves structural characters like :, /, ?, #, and &. encodeURIComponent encodes everything except letters, digits, and a few safe characters (- _ . ~), making it suitable for encoding individual query parameter values.

Should I URL encode the entire URL or just the parameters?

You should only encode individual parameter names and values, not the entire URL. Encoding the full URL would convert the :// in https:// and the path separators (/), breaking the URL structure.

How does URL encoding handle Unicode and international characters?

Unicode characters are first converted to their UTF-8 byte representation, then each byte is percent-encoded. For example, the Euro sign becomes %E2%82%AC (its three UTF-8 bytes). This ensures URLs work correctly across all browsers and servers.

When do I need to URL encode special characters?

URL encode special characters whenever you include user input, file names, or arbitrary text in URL query parameters, path segments, or fragment identifiers. This prevents characters like & and = from being misinterpreted as URL delimiters.