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icon of Mumble

Mumble

Communication & CollaborationIT ManagementSecurity & Monitoring

Free open source low-latency voice chat for gaming teams

stars 8Klicense NOASSERTIONlang C++
ChatSelf HostedSecurity+4
icon of LiveKit

LiveKit

AI & Machine LearningAPIs & IntegrationCommunication & Collaboration

Real-time voice and video infrastructure on open source WebRTC

stars 10.2Klicense Apache-2.0lang Python
AI AgentsAPI InfrastructureDeveloper Framework+5
icon of Mattermost

Mattermost

Communication & CollaborationSecurity & MonitoringIT Management

Team messaging for security-sensitive teams with air-gap support

stars 36.4Klicense NOASSERTIONlang TypeScript
ChatSelf HostedWorkflow Automation+3
icon of SigNoz

SigNoz

Security & MonitoringDevOps & CI/CDData & Analytics

Open source APM with logs, traces, metrics, and dashboards

stars 26.7Klicense NOASSERTIONlang TypeScript
ObservabilityMonitoringDevOps Tools+5
icon of Apache AsterixDB

Apache AsterixDB

Data & AnalyticsDatabases & StorageBackend Development

Scalable Big Data management with high-performance analytics

stars 312lang Java
DatabaseData VisualizationDeveloper Tools+4
icon of Redis

Redis

Databases & StorageAPIs & IntegrationBackend Development

High-performance open source in-memory data structure store

stars 74Klicense NOASSERTIONlang C
DatabaseSelf HostedAPI Infrastructure+3
icon of Trench

Trench

Data & AnalyticsBackend DevelopmentLLMOps & AI Tooling

Open source analytics infrastructure powered by ClickHouse

stars 1.6Klicense MITlang TypeScript
Web AnalyticsDatabaseData Visualization+5
icon of ArangoDB

ArangoDB

Databases & StorageData & AnalyticsBackend Development

Multi-model database: documents, graphs, and key-value in one

stars 14.2Klicense NOASSERTIONlang C++
DatabaseSelf HostedDeveloper Tools+4
icon of Anytype

Anytype

Business & ProductivityProduct & Project ManagementSecurity & Monitoring

Local-first self-hosted alternative to Notion and Linear

stars 7.4Klicense NOASSERTIONlang TypeScript
Local-firstNo CodeNote-taking Apps+5
icon of Standard Notes

Standard Notes

Business & ProductivitySecurity & Monitoring

End-to-end encrypted notes with 100+ extensions and themes

stars 6.4Klicense AGPL-3.0lang TypeScript
Note-taking AppsPrivacy ToolsSecurity+4
icon of UnInbox

UnInbox

Communication & CollaborationBusiness & ProductivityIT Management

Open source collaborative email with shared team inboxes

stars 1.7Klicense NOASSERTIONlang TypeScript
EmailWorkflow AutomationSelf Hosted+3
icon of Huly

Huly

Product & Project ManagementCommunication & CollaborationBusiness & Productivity

One open source workspace to replace Jira, Slack, and Notion

stars 25.5Klicense EPL-2.0lang TypeScript
Project ManagementChatKnowledge Management+5
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