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Natron

stars 5.6Kforks 412

Free node-based compositing software for visual effects

Video Graphic Design Workflow Automation+3

SpacebarChat

stars 2.2Kforks 327

Free open source Discord reimplementation with full API parity

Chat Self Hosted Security+4

Budibase

stars 28.3Kforks 2.2K

Low-code platform for building internal apps, self-hosted

No Code Workflow Automation Developer Tools+3

Revolt

stars 3.4Kforks 397

Self-hosted open source Discord alternative with servers

Chat Self Hosted Security+4

ToolJet

stars 41.1Kforks 5.5K

Build internal tools with a drag-and-drop UI and 50+ connectors

No Code Self Hosted Workflow Automation+3

Matrix

stars 4.7Kforks 637

Open protocol for secure, decentralized messaging and VoIP

Chat Security API Infrastructure+3

Scoold

stars 921forks 227

Self-hosted Q&A platform for internal team knowledge

Knowledge Management Knowledge Base Self Hosted+4

Jitsi

stars 30.1Kforks 8.1K

Free video conferencing you can self-host with no account needed

Video Chat Self Hosted+3

GPT‑NeoX

stars 7.5Kforks 1.1K

EleutherAI's framework for training LLMs at research scale

LLM LLMOps Developer Framework+3

Centrifugo

stars 10.9Kforks 742

Scalable real-time messaging server with WebSocket support

WebSocket Servers API Infrastructure Self Hosted+3

Weaviate

stars 16.9Kforks 1.4K

AI-native vector database for semantic search and AI apps

Database LLM RAG+4

Apache PDFBox

stars 3.1Kforks 967

Open source Java library for creating and parsing PDFs

Developer Framework Coding Documentation+4