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Matrix Synapse / Element

Federated, E2E-encrypted messaging

provisional — pending verificationAGPL-3.0self-hostable
Arete score
3.8 / 5
Autonomy5
Return3
Efficiency2
Transparency5
ἀρετή “AH-reh-tay” — excellence: a thing being good at what it’s for. Mean of the four principle scores. How we score →
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Plain outbound link — no affiliate parameters, no tracking redirects.

~ Provisional — seeded estimate by a human researcher; full rubric pass pending. Working notes ↓

Why it's listed

Matrix Synapse / Element is listed in team chat & messaging because it competes on utility: federated, e2e-encrypted messaging. It's stewarded by a non-profit or foundation, which structurally protects it from acquisition-driven enshittification. Licensed AGPL-3.0; pricing: free (ce) / paid hosting. It's on the heavier side for its category — we score that honestly and say so. This entry is provisional — the scores are seeded estimates pending our full manual rubric pass, and the verification date will appear here once complete.

Facts

License
AGPL-3.0
Pricing
Free (CE) / paid hosting
Funding model
Foundation + company
Self-hostable
Yes — deploy difficulty: hard
Replaces
Slack, WhatsApp
Verification
Provisional — scores are seeded estimates pending manual verification

Evidence notes

Python; federation costs resources

Recorded during the rubric pass — every score must carry evidence a stranger could re-check.

Also in team chat & messaging

Spotted a problem — trackers added, dark patterns, abandonment? Report a violation. Scores change when evidence does.