Developer utility

URL encode and decode

Encode URLs, decode query strings, and handle special characters with the browser's standard URI helpers.

UTF-8Encoding
LocalBrowser-only
FastInstant output

URL encode / decode

Tip: URL encoding turns special characters into `%`-prefixed sequences so they can travel safely through a URI.

FAQ and developer notes

What is URL encoding?

URL encoding converts characters that are not safe in a URI into percent-encoded bytes so browsers and servers can interpret the text consistently.

Is it safe?

Yes. Encoding and decoding happen locally in your browser, so your input never leaves the device.

Why encode query parameters?

Encoding prevents characters like `&` and `?` from breaking query parsing or creating malformed requests.

What about Chinese text?

Chinese and other non-ASCII characters are encoded with UTF-8 percent-encoding, then decoded back into readable text when needed.

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