This decentralized messenger offers private, secure, and reliable instant messaging. It allows for easy setup on multiple devices and supports multiple chat profiles without requiring a phone number. Enjoy end-to-end encryption and the flexibility to run it with your own email or server.
2.53.0
June 17, 2026
- "Calls" and "Channels" are available by default and are no longer experimental - Add outgoing ringing sound and call status - Resend the last 10 messages to new broadcast channel member - Consistent outgoing image quality between images with different aspect ratio - Enable PQC (Post-Quantum Cryptography) support. We do not generate PQC keys yet, this step is needed for forward compatibility - Add "Mark All as Read" to the profile switcher context menu - Improve avatar quality - Simplified classic provider handling - Add an option to process unencrypted messages to "Advanced / Relays / Edit / More Options". By default, only encrypted messages can be sent or received - Show full message screen now uses the system font - Click on location streaming info message to open the map - Ignore blocked contacts attempting scanning your QR code - Fix: Update the channel title after joining if the QR code included a wrong title - Fix: Don't send removal message to contact that hasn't been a chat member - Fix: Reactions could go to the wrong message if a new message was received while long pressing - Fix: update relay list when modified on other devices - Fix: Tapping "Me" in reactions overview would open the wrong contact on anything other than your first profile - Fix: Video and PDF thumbnails are now cached for smoother scrolling - Fix: Do not abort IMAP connection if setting the push token fails These features will roll out over the coming days. Thanks for using Delta Chat!
MoreDelta Chat is a decentralized instant messenger that prioritizes privacy and security. It allows users to chat with friends, family, and groups using end-to-end encryption. It's built on open internet standards and can be run with your own email address or server for enhanced sovereignty.
Privacy is a core feature, with instant onboarding that doesn't require a phone number or other private data. It also features audited end-to-end encryption to protect your conversations from network and server attacks. Unknown users cannot message you without mutual consent.
Yes, Delta Chat is a Free and Open Source Software (FOSS) application. It is available for free across multiple platforms and does not have any in-app purchases or advertisements.
Absolutely. The app is designed to be flexible and easy to set up on multiple devices. You can also manage multiple chat profiles within the application.
Decentralized messengers like Delta Chat offer greater user control and privacy by not relying on a single central server. This can make them more resilient to censorship and server attacks. You also have the option to run your own server for maximum control.
