ZOYKUHot Board
AllzeitWocheMonatRookiesSteigungGeheimtippsUnterschätztKontroverseFork-KönigeMeilensteine
Knowledge & Notes/VENDOR: SALESFORCE, INC.
Technischer Vergleich→

Slack Open-Source Alternatives

Channel-based messaging platform for modern team collaboration

ARCHITECTURAL SPECIFICATION MATRIXPROPRIETARY VS SELF-HOSTED
EVALUATION CRITERIAPROPRIETARY (SLACK)OPEN SOURCE ALTERNATIVES
Deployment & InfraClosed-source multi-tenant SaaS locked to vendor cloud100% containerized deployment on private VPC or bare-metal
Data SovereigntyStored in proprietary cloud; restricted auditability100% self-hosted PostgreSQL/S3 data ownership and SOC2 compliance
Cost & Seat ModelFree plan aggressively hides messages older than 90 days. Paid plans cost $7.25+/user/month.Zero per-seat licensing fees for unlimited internal & external team seats
Customization & CI/CDConstrained to proprietary webhooks and plugin sandboxesFull source-code access for private CI/CD, SSO/LDAP, and internal plugins

Quantitativer Projekt-Benchmark

Ranked by verified telemetry, package downloads, and 6-axis combat radar

Technischer Vergleich
39.6k
9.1k
#787 · 总榜

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

TELEMETRY:
Scale84
Velocity21
Adoption100
Longevity60
Health100
License35
GitHub Quellcode↗
26.1k
10.5k

zulip/zulip open-source repository on GitHub

TELEMETRY:Apache-2.0
Scale80
Velocity20
Adoption100
Longevity60
Health100
License95
GitHub Quellcode↗
MIGRATION RUNBOOK & SELF-HOSTING NOTE

Native Slack export archive importers restoring channels, users, and custom emojis.

Initial deployments are recommended via official Docker Compose or Kubernetes Helm charts with persistent volumes mounted to S3/MinIO compatible object stores.

Explore More Software Alternatives

Notion Labs, Inc.
Notion →
All-in-one workspace for notes, docs, and knowledge management
Atlassian
Confluence →
Enterprise team knowledge base and document collaboration
Linear Orbit, Inc.
Linear →
The issue tracking tool built for high-performance software engineering teams