Buttercup uses very strong encryption to protect your sensitive details under a single master password - Feel free to use stronger and more complex passwords for each service and let Buttercup store them securely.

Buttercup is free to download and use and is available for Windows, Mac and Linux. Use it alongside the browser extension and mobile app for a completely portable experience.

Buttercup for Mobile

Take your login credentials wherever you go by installing the free iOS or Android app on your phone. Buttercup mobile gives you access to the same archives you use on the desktop application and browser extension, so your newly added details can be seen on all of your devices.

Buttercup's mobile applications employ similar safety techniques to banking applications, such as auto-lock and a security overlay when the app is minimized.


Strong 256bit AES encrypted archives that meet today's security standards. Rest assured that your credentials are safe.


Easy-to-use interfaces with basic concepts make storing and finding your login details a piece of cake.


Buttercup's software is free to download and use, forever. It's also available for all major platforms.

What's New

  • Electron hardening by @perry-mitchell in #1273
  • Add Portuguese Language Support by @Hawk-Root in #1272