MakerFLOSS/docs/møder/2026-05-11_messaging-presentation.md

7.3 KiB

marp theme paginate
true default true

Messaging Without Big Tech

Free & Open Alternatives to WhatsApp and Messenger

MakerFLOSS · April 2026


Why Are We Here?

Most people use WhatsApp, Messenger, or iMessage.

What's the problem?

  • WhatsApp — owned by Meta; metadata harvested; backup encryption only added under pressure
  • Messenger — no E2EE by default in groups; extensive ad tracking
  • Telegramnot E2EE by default; groups are server-side; closed server
  • iMessage — Apple lock-in; not available on Android or Linux

These apps are convenient — but the cost is your data.


Whish-list

Property Why it matters
End-to-end encryption Only sender and recipient can read messages
Open source Anyone can audit the code
Self-hostable You control the server and the data
No phone number required Less identity linkage
Cross-platform Linux, Android, iOS, Windows
Federated / decentralized No single point of failure or control

The Landscape at a Glance

App E2EE Open source Self-host No phone# Federation
Signal Partial
Matrix / Element
XMPP + OMEMO
Briar N/A N/A
Session Partial Partial
Threema Partial Optional

Signal — The Gold Standard for E2EE

Created by Moxie Marlinspike (2013), now run by the non-profit Signal Foundation.

The Signal Protocol is the encryption layer also used by: WhatsApp, Google Messages (RCS), Skype, Facebook Messenger (secret chats)

Pros

  • Extremely simple UX — works like a normal messaging app
  • Calls, groups, disappearing messages, Stories, Note to Self
  • Audited, battle-tested cryptography
  • No ads, no tracking, no data sold

Cons

  • Phone number required — links your identity to your account
  • Centralized — Signal's servers, Signal's rules
  • Server source code published but community forks are blocked

Signal — Under the Hood

Alice's phone                     Signal Server                Bob's phone
─────────────                     ─────────────                ──────────
[message] ──encrypt(Bob's key)──▶ [stores ciphertext] ──────▶ decrypt ──▶ [message]
  • The server sees: who talks to whom, when, and how often
  • The server does not see: message content
  • This metadata is still significant — read the Signal subpoena responses

Best for: journalists, activists, family group chats, anyone who wants simple + secure


Matrix — The Federated Open Standard

Matrix is a protocol, not an app — like email, but for real-time chat.

[your homeserver]  ←──federation──▶  [another homeserver]
        ▲                                      ▲
   Element client                        FluffyChat client
  • Standard: matrix.org (open spec, anyone can implement)
  • Server software: Synapse (Python), Conduit (Rust), Dendrite (Go)
  • Clients: Element, FluffyChat, Cinny, Fractal (GNOME), Nheko
  • Bridges: WhatsApp, Signal, Slack, Discord, IRC, XMPP — all bridgeable

Matrix — Pros and Cons

Pros

  • Fully open source, top to bottom
  • Self-host your own homeserver — you own your data
  • Federated — no single company controls the network
  • Bridges let you consolidate all your chats in one place
  • Persistent rooms, Spaces (like Discord servers), threads

Cons

  • E2EE key management is still clunky (cross-signing, key backup)
  • Synapse is resource-hungry (~1 GB RAM for a small server)
  • Message history sync across federation is slow
  • The UX of Element is still maturing

Matrix — Why It's Interesting for MakerFLOSS

We could run our own homeserver at matrix.makerfloss.eu.

What this gives us:

  • Full control over our community chat
  • Bridges to reach people still on WhatsApp or Messenger
  • A playground for learning about self-hosted infrastructure
  • Federated — members can also use matrix.org or their personal servers

Matrix Bridges — Stay Connected During the Transition

A bridge connects Matrix to another network — messages flow both ways.

[WhatsApp contact] ←──── WhatsApp servers ────▶ [mautrix-whatsapp bridge] ←──── Matrix ────▶ [You]

You keep your existing accounts. Your contacts don't need to switch.

Bridge Network Notes
mautrix-whatsapp WhatsApp Puppeting — uses your real WA account
mautrix-telegram Telegram Puppeting — very stable
mautrix-signal Signal Fragile — Signal actively breaks 3rd-party
matrix-appservice-irc IRC Mature, widely used
heisenbridge IRC Simpler alternative

The pitch: Use Matrix as your single inbox — WhatsApp, Telegram, IRC all in one place.

The catch: Puppeting bridges need server access to your account credentials. WhatsApp's ToS prohibits it — occasional bans occur.


Two More Worth Knowing

XMPP (Jabber)

The original federated chat standard — 1999. Still alive and kicking.

  • Extremely mature and lightweight
  • Good clients: Conversations (Android), Monal (iOS/macOS), Gajim (desktop)
  • E2EE via OMEMO
  • Con: fragmented client quality; setup less beginner-friendly

Briar

Peer-to-peer messaging — no server at all.

  • Works over Tor, local WiFi, or Bluetooth (offline!)
  • Censorship-resistant by design
  • Con: Android only (iOS in beta); no desktop client; both parties must be online to first connect

Resources

Resource Link
Signal signal.org
Matrix spec spec.matrix.org
Element client element.io
FluffyChat fluffychat.im
Conduit server conduit.rs
Briar briarproject.org
Privacy Guides (comparison) privacyguides.org/en/real-time-communication
EFF Surveillance Self-Defense ssd.eff.org