Open source
Alternatives to Slack
12 tools like Slack, chosen by what they do. About Slack
Freemium
Freemium
Open source
listmonk
Self-hosted newsletter and mailing list manager in one binary
CommunicationSelf-hosted newsletter manager
Open source
Mattermost
Self-hosted team chat for private, secure workplace messaging
Chat and MeetingsOpen source team chat
Curated
Twist
Async team messaging built around threads instead of constant chat
Async and RemoteAsync team messaging
Free trial
Aircall
Cloud phone and customer communications platform with AI tools
Phone and SupportCloud phone system
Curated
Linear
Issue tracking and project planning for software product teams
Project ManagementIssue tracking
Open source
Curated
Rippling
HR, payroll and IT admin in one system for global teams
HR and HiringHR IT and payroll in one
Free
Patreon
Membership platform for creators to earn from fan support
Creator PlatformsMemberships for creators
Freemium
Notion
All-in-one workspace for docs, wikis, databases and projects
Project ManagementDocs and projects











