The best new open source tools,
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A weekly briefing on the open source tools worth knowing. What they do, whether they're real, and whether you should care. No hype, no clickbait.

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ragflow95

RAGFlow is a retrieval-augmented generation engine built around deep document understanding, and it has grown into an agent platform sitting on top of that. It still handles the messy parts of RAG that other frameworks hand-wave past: PDFs with tables, slides, spreadsheets, scanned images, mixed-language docs, now with MinerU and Docling parsing. On top of that it added agent memory, an MCP server, and delivery into chat channels like Discord, Telegram, and Feishu. Apache 2.0.

This week's featured tool →

This Week's Drop

August 9, 2026

ragflow

87.0k ★

RAGFlow is a retrieval-augmented generation engine built around deep document understanding, and it has grown into an agent platform sitting on top of that.

95AI/ML+407/wk

LangGraph

39.1k ★

LangGraph defines AI agent workflows as graphs, where nodes are processing steps and edges are conditional transitions.

88AI Agent Frameworks+688/wk

palmier-pro

13.3k ★

Palmier Pro is a native macOS video editor with AI wired directly into the timeline.

81Media Processing+319/wk

img2threejs

10.1k ★

img2threejs takes a reference image and rebuilds the object in it as procedural Three.js code, using primitives and shaders instead of a downloaded mesh.

80AI Agent Tools - Skills+1.1k/wk