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Delta Chat

FlathubSecure & encrypted messaging

PulseGate's liveness check found it on 14 Sep 2026; it is registered on Flathub and has been in the index since 24 Jul 2026. How this is checked

Delta Chat turns ordinary email into a modern instant messenger with end-to-end encryption. It offers anonymous onboarding, multiple profiles, extensibility with tools and games inside chats, reliability on poor networks, and full sovereignty through self-hosting. It is fully open source and built on open standards.

Inferred · not functionally tested

FreeLinux
Visit Flathub

Overview

5 features

Purpose: Secure messaging without needing a separate app or phone number by using existing email infrastructure.

Inferred · not functionally tested

Audience: individuals, families, groups and organizations

Inferred · not functionally tested

Functions: collaboration

Inferred · not functionally tested

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: free · license: Proprietary · platforms: DESKTOP · deployment: linux

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: flathub.org. These links do not verify the individual claims.

Delta Chat sits in PulseGate's Secure & encrypted messaging category. Inferred · not functionally tested: Secure messaging without needing a separate app or phone number by using existing email infrastructure. Inferred · not functionally tested: It is built as an open-source project for individuals, families, groups and organizations. Basis unknown · not verified: It is available for free. Basis unknown · not verified: It runs on Linux.

Behind Delta Chat is Delta Chat. Inferred · not functionally tested: Among its 5 catalogued features are no phone number required, multiple profiles, and extensible tools and games.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • No phone number required
  • Multiple profiles
  • Extensible tools and games
  • End-to-end encryption
  • Self-hosted server option

Topics: Inferred · not functionally tested

Tags
decentralized-messengeremail-chate2ee-messaging

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
Linux

Trust & compliance

Public signals
HTTPSFree tier

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed24 Jul · 12:50 UTC
    desktop seen via crawler:flathub
    Source: crawler:flathub · Open

Frequently asked questions about Delta Chat

What does Delta Chat do?
Inferred · not functionally tested: Secure messaging without needing a separate app or phone number by using existing email infrastructure. It is catalogued under Secure & encrypted messaging on PulseGate.
Who should use Delta Chat?
Inferred · not functionally tested: Delta Chat is an open-source project built for individuals, families, groups and organizations.
Does Delta Chat have a free plan?
Basis unknown · not verified: Yes — Delta Chat is free to use.
What platforms does Delta Chat run on?
Basis unknown · not verified: Delta Chat runs on Linux.
Is Delta Chat still active?
PulseGate's liveness check found it on 14 Sep 2026.
Who makes Delta Chat?
Delta Chat is developed by Delta Chat.

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