Delta Chat

Meet Delta Chat, a fast and secure messenger that works without phone numbers or central servers. Instead of relying on a traditional chat network, Delta Chat uses something you already have — your email address. It delivers your messages in a clean, modern chat interface while giving you full privacy and control.

With Delta Chat, you can chat instantly with anyone who has an email account, even if they aren’t using the app. When both users are on Delta Chat or another Autocrypt-compatible client, the app automatically enables end-to-end encryption, keeping your conversations protected and completely private.

Delta Chat feels like any familiar messaging app — but it’s built on open-source technology, has no ads, no tracking, and never stores your data on centralized servers. It’s a perfect choice if you want freedom, privacy, and independence in your digital communication.

Key Highlights

• Works using your email — no phone number needed
• No central servers; your data stays with you
• End-to-end encryption when supported
• Chat with anyone who has an email address
• Clean, messenger-style interface
• Group chats & media sharing (photos, videos, voice notes, files)
• Multi-device support across Android, iOS, Windows, Mac & Linux
• Completely free and open-source
• Multiple accounts and profiles supported

Privacy First

Delta Chat doesn’t track you, doesn’t sell your data, and doesn’t store your messages. Everything runs through your own email provider, giving you more safety and independence than traditional messengers.