Clack

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Clack is an open-source, self-hostable communication platform. It offers a privacy-focused alternative for secure and efficient team messaging, providing greater control over data and infrastructure.

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At a glance

Pricing

open-source

Free tier

Yes

API

—

Skill level

Technical

About

What is Clack?

Clack is an open-source communication platform designed for teams and organizations. It provides a self-hostable solution, allowing users to maintain full control over their data and infrastructure. The platform focuses on privacy, offering a secure alternative to mainstream team messaging tools. It facilitates efficient internal communication, making it suitable for entities that prioritize data sovereignty and require a customizable messaging environment.

Best used for

Secure and private internal team communication where data control and self-hosting are priorities.

Common actions

Communicate securely

Host own messaging

Control data

Team collaboration

Privacy-centric messaging

collaborationcommunicationself-hostedopen-sourceteam chatprivacymessagingSlack alternative

Capabilities

Key features

Open-source
Self-hostable
Privacy-focused
Secure communication
Data control

Target Audience

TeamsOrganizationsDevelopersIT Administrators

Integrations

Not yet documented

Pricing & Plans

open-source

Open Source

FAQs

What are the typical costs associated with self-hosting Clack, beyond the free open-source software?

While Clack itself is free, self-hosting requires infrastructure costs for servers, maintenance, and potentially IT staff. These costs vary significantly based on team size, usage, and chosen hosting environment (e.g., cloud provider vs. on-premise hardware).

Does Clack offer any official support or community forums for self-hosting assistance?

As an open-source project, Clack typically relies on community support through forums, GitHub issues, or dedicated chat channels. Official paid support options are generally not available, but community contributions and documentation are usually robust.

Can Clack integrate with existing enterprise tools like Active Directory or single sign-on (SSO) solutions?

Integration capabilities depend on the specific features developed by the open-source community. Many self-hostable platforms offer plugins or configuration options for LDAP, Active Directory, or OAuth/SSO, but it's crucial to check Clack's current documentation for supported integrations.

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