#1
Build, deploy, and orchestrate AI agents. Sim is the central intelligence layer for your AI workforce.
29K starsJul 18, 2026 pushdataTypeScriptRAG
$ npx skills add simstudioai/simAlternatives
AI System Design Guide alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
AI System Design Guide
AI system design guide for engineers building production AI systems and evals.
94
Quality
84
Trust
2.2K
Stars
#2
Build AI Agents, Visually
54K starsJun 10, 2026 pushdataTypeScriptRAG
$ npx skills add FlowiseAI/Flowise#3
Curated list of the best truly open-source AI projects, models, tools, and infrastructure.
4.6K starsAug 18, 2026 pushdataPythonRAG
$ npx skills add alvinreal/awesome-opensource-ai#4
Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.
35K starsJun 24, 2026 pushdataPythonRAG
$ npx skills add khoj-ai/khoj#5
Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.
26K starsJun 12, 2026 pushdataMDXRAG
$ npx skills add deepset-ai/haystack#6
Open Source AI Platform - AI Chat with advanced features that works with every LLM
30K starsJun 13, 2026 pushdataPythonRAG
$ npx skills add onyx-dot-app/onyx#7
PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.
26K starsJun 22, 2026 pushdataJavaRAG
$ npx skills add opendataloader-project/opendataloader-pdf#8
Open source agentic operating system
19K starsJun 25, 2026 pushdataTypeScriptRAG
$ npx skills add elizaOS/eliza#9
An open source, privacy focused alternative to NotebookLM for teams with no data limits. Join our Discord: https://discord.gg/ejRNvftDp9
15K starsJun 27, 2026 pushdataPythonRAG
$ npx skills add MODSetter/SurfSense#10
[MLsys2026]: RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.
13K starsJul 3, 2026 pushdataPythonRAG
$ npx skills add yichuan-w/LEANN#11
[MLsys2026]: RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.
12K starsJun 9, 2026 pushdataPythonRAG
$ npx skills add StarTrail-org/LEANN#12
ConardLi's open-source Skills collection, featuring web design, knowledge retrieval, image generation, and more.
9.5K starsJul 12, 2026 pushdataCSSRAG
$ npx skills add ConardLi/garden-skills#13
High accuracy RAG for answering questions from scientific documents with citations
8.7K starsJun 11, 2026 pushdataPythonRAG
$ npx skills add Future-House/paper-qa#14
🔍大模型应用开发实战一：RAG 技术全栈指南，在线阅读地址：https://datawhalechina.github.io/all-in-rag/
8.5K starsJun 5, 2026 pushdataPythonRAG
$ npx skills add datawhalechina/all-in-rag#15
Ready-to-run cloud templates for RAG, AI pipelines, and enterprise search with live data. 🐳Docker-friendly.⚡Always in sync with Sharepoint, Google Drive, S3, Kafka, PostgreSQL, real-time data APIs, and more.
59K starsJun 10, 2026 pushdataJupyter NotebookRAG
$ npx skills add pathwaycom/llm-app#16
100+ AI Agent & RAG apps you can actually run — clone, customize, ship.
114K starsJun 13, 2026 pushdataPythonRAG
$ npx skills add Shubhamsaboo/awesome-llm-appsHow to choose
When should you switch?
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep AI System Design Guide if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.