Communications & Messaging

AnonAddy provides an email forwarding service that keeps personal email addresses private.

BigBlueButton is an open-source video communication tool with all the required features for online training and learning including breakout rooms, whiteboards, closed captioning, polls, shared notes, and more.

[S]ign up for BigBlueButton managed by NoLog.cz, CommunityBridge, meet.coop, and other providers.
– Digital Hygiene 101: How to practise digital safety and security

Briar is an open-source secure message app for Android. With Briar, users can send and receive messages through encrypted Bluetooth, WiFi, or Tor connections to avoid surveillance and censorship.

DuckDuckGo Email Protection is a service within DuckDuckGo browser extension that allows you to generate @duck.com forwarding email addresses to mask your personal email address. It automatically removes trackers in the forwarded emails to protect your privacy online.

Jitsi Meet is an open-source private video conferencing software that limits the user’s digital footprint when meeting virtually. It works on most modern internet browsers and is also available as a mobile app for Android and iOS.

You can use meet.jit.si to host your online meetings for free […] Other trusted free Jitsi Meet deployments include Greenhost, Framatalk, and Distroot.
– Digital Hygiene 101: How to practise digital safety and security

K-9 Mail is an open source email client for Android with OpenPGP encryption support.

Mailvelope is an open-source extension for Chromium- and Firefox-based web browsers that provides an interface for Pretty Good Protection (PGP) email encryption on popular web-based email services.

Mattermost is an open-source collaborative chat for teams.

Proton Mail (Web, Android, iOS) is an open-source email service that uses end-to-end encryption and zero-access encryption to protect the user’s data and privacy.

Riseup Email is a secure email service by activists for activists. Its security features include full-disk encryption, encrypted email storage, Onion routing, and more.

Session is a decentralised instant messaging app that does not require phone numbers, email addresses, or other personally identifiable information.

Signal (Desktop, Android, iOS) is an open-source secure messaging and calling app that uses end-to-end encryption to protect the user’s privacy.

Skiff Mail is end-to-end encrypted email that protects your inbox and gives you the power to communicate freely.

Thunderbird is an open-source desktop email client that has built-in security and safety features including remote image linking protection, phishing protection, PGP encryption, and more.

Tutanota provides secure, green, and ad-free email service that incorporates privacy by design.

Wire is a secure group communication suite that offers secure messaging, video conferencing, and file sharing.

Zulip is an open-source collaborative chat for teams.