#79 in Collaboration & CommunicationUpdated 2026-08

Cinny

by Cinny · Open-source Matrix chat client with end-to-end encryption

21.8 — BenchRank score out of 100

Homepage

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Overview

Cinny is a client for Matrix, an open network for secure, decentralised communication. It provides a chat interface protected by end-to-end encryption, with themes and with direct messages listed separately from channels. The source code is open, so it can be inspected and modified, and the project is funded through financial contributions.

Best for: Communities already on Matrix wanting an open-source web client with end-to-end encryption
Pricing: No prices are shown; the page presents Cinny as open source with donations invited via Open Collective, GitHub Sponsors and Liberapay.
Runs on: Web

Strengths and trade-offs

Strengths

End-to-end encrypted conversations
Source code is open to inspect and modify
Direct messages kept separate from channels
Built-in themes, with light selectable on the site

Trade-offs

Needs an existing Matrix account and homeserver; none is provided
Site names few concrete features beyond themes and the DM/channel split
Site itself says much is still to come, so gaps should be expected
Donation-funded project, so no paid support or service commitment is offered

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 0 out of 100
Documentation: 0 out of 100
Agent friendliness: 39 out of 100
Changelog: 100 out of 100
Marketing site structure: 15 out of 100
Operational trust: 0 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 40 out of 100
Maintenance: 100 out of 100

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