Number Base Converter

Convert between binary, octal, decimal, hex, etc. easily and conveniently without online tools. allows you to quickly convert between number bases (2, 6, 8, 10, 16, etc.) right in your macOS without any internet connection. Number Base Converter macOS app

Quickly convert between number bases

You can convert number bases from anywhere in your macOS (terminal, in email, web browser,...). Activate the app by:

  • Copy text → Press Space
    (Or your own customized hotkey, up to you)
  • Copy text → Click to status bar icon in the status bar
  • Select text → Right-click → "Inspect in"
    (This menu appears after you install the app)


Start by entering your number in any of the textbox. The other textboxes will be updated automatically.

If you already have the number in your clipboard. Just click the "Clipboard" button to paste the string.

For example: Number Base Converter Example


Other number bases will be updated automatically as you type.

You can also select a custom number base by changing the dropdown option: Custom Number Base

DevUtils can also help you with a lot of other tasks: Format JSON string, decode Base64, debug your RegExp, compare text diff, and many more. Click here to learn more and give it a try!