Underpass free download for Mac


05 January 2019

Encrypted chat/file transfer for complete privacy and security.


Underpass is different from every other encrypted chat app because it does not use a third-party service. It's just two devices and a password. Peer-to-peer. There's no signup. No account. No phone number, email, contacts, or any personal information requested, not even your real name.

You can chat securely over the internet or on a LAN, such as in an office, school, coffee shop, or home. All of your data is encrypted before it's sent over the network, and it can't be decrypted except by the other device using Underpass. Industry-standard AES-128 encryption algorithm.

  • File transfers of any file type
  • Inline images, including animated gifs
  • Unicode text and emoji

What's new in Underpass

Version 1.1.2:
  • Added a number of submenus and items under Edit in the main menu.
  • Respect the System Preferences for Keyboard, Text while typing. This allows text substitutions, for example.
  • Disable data detectors by default in the messages view. You can enable them manually.

Related articles

Join over 500,000 subscribers.

Subscribe for our newsletter with best Mac offers from MacUpdate.

0 Underpass Reviews

Rate this app: