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UTF-16 Code Unit Viewer

View the UTF-16 code units of your text in little-endian or big-endian order.

Processed in your browser

Your result will appear here as soon as you add some input.

How to use it

  1. 1Paste your text into the input box, or type it directly.
  2. 2Adjust the options if you need something other than the defaults.
  3. 3The result updates as you type - there is no button to press.
  4. 4Copy the result to your clipboard or download it as a file.

About the UTF-16 Code Unit Viewer

JavaScript strings are UTF-16 internally, which is why `"😀".length` is 2 - the emoji is stored as a surrogate pair. This view makes that visible.

Little-endian with a byte order mark is what Windows means by "Unicode" in a save dialog.

Questions people ask

Is your text uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your text never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.

Is it free, and do I need an account?

Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.