Encode and decode a Base64 string without online tools.Β DevUtils.appΒ allows you to quickly encode and decode Base64 string without any internet connection.

Quickly decode a Base64 string
You can decode a Base64 string from anywhere in your macOS (terminal, in email, web browser,...).DevUtils will inspect your clipboard content and automatically select the Base64 Encoder/Decoder tool if the content is a Base64 string. Activate the app by:
- Copy text βΒ PressΒ ββ₯βSpace(Or your own customized hotkey, up to you)
- Copy text βΒ Click to DevUtils iconΒ in the status bar
- Select text β Right-click β "Inspect in DevUtils.app"(This menu appears after you install the app)
Input
Enter your string in the input textbox, select Encode or Decode based on your need.
Output
The encoded/decoded string will be displayed in the bottom text view. Click "Copy" to copy the output string to your clipboard.
Options
When you activate the app, DevUtils will inspect your clipboard content and automatically select the Base64 Encoder/Decoder tool if the content is a Base64 string. You can disable this automatic feature by unticking the option in the setting panel (the gear icon).

Also available onΒ base64decode.app