communicationmutual-aidsocial-health
Delta Chat provides free, secure, decentralized communications
It’s high time to ensure that you and your loved ones, your support network, have a way to communicate online that is secure and free from the whims of corporations and governments. Delta Chat is a huge improvement over so many existing messenger applications that are centralized and very much subject to the whims of corporations & governments. Delta Chat is easy to set up, highly portable between devices and has an active community of developers
I have been enjoying using Delta Chat so much, with the exception of having very few people to share it with so far. So I will join in the fanfare to entice people to it!
You can chat, share files and photos, video & audio chat, leave audio messages, and even play games and share todo or grocery lists, calendars and documents privately within a chat or group with mini-apps. It’s the perfect place to organize with family, friends, community. Find out more in the FAQs.
Here are a few eloquent things others have said about it:
As we enter 2026, the rise of authoritarianism makes communication resilience critical for an increasing number of “at-risk” users everywhere. If a tool is blocked or unavailable, its features, security or otherwise, provide exactly zero benefit. Real-world availability is the very foundation of security in emergency situations, and in this regard, Delta Chat apps are likely second to none. Even the New York Times seems to agree and we are not quite done yet developing more resiliency features … (https://delta.chat/en/2026-03-31-zero)
Delta Chat is not just an application: it is a way of understanding the internet that is very different from what we have accepted from Silicon Valley. It revives the original spirit of the internet: federated, open, and self-managed, while using modern technology and top-tier encryption. It is a tool that respects the freedom and dignity of individuals and communities and allows us to build sovereign, ethical, subsidiary, and resilient communication. (https://pere.quintanasegui.com/deltachat_en.html)