About Delta Chat
A messenger that works over your existing email account.
Built for Windows, Delta Chat brings solid communication features together in a clean, no-nonsense package. Highlights include chat over email and end-to-end encryption, wrapped in an interface that stays out of your way.
Get Delta Chat for Windows now: the current version, a clean installer and a fast, direct download.
Key features
- ✓Chat over email
- ✓End-to-end encryption
- ✓No new account
- ✓Open source
Requirements
Windows 10 / 11, 64-bit
Delta Chat — frequently asked questions
Is Delta Chat free to download?+
Yes. Delta Chat is free and open source, so you can use it at no cost.
Is Delta Chat safe to download?+
Yes. HivApps links to the latest Delta Chat build and keeps listings clean, with no bundled extras. As always, keep your antivirus on and only install software you trust.
What is the latest version of Delta Chat?+
The latest version listed here is Delta Chat 1.46, updated Aug 13, 2026.
What do I need to run Delta Chat?+
Windows 10 / 11, 64-bit
How do I install Delta Chat on Windows?+
Click the Download button on this page, run the installer once it finishes downloading, and follow the on-screen setup steps.
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Latest version (1.46) · Safe & clean