Crawl4AIunclecode/crawl4ai
Web crawler that turns sites into LLM-ready MarkdownPersonalEnterpriseRAG & vector DBsDocker / self-hostLibrary / SDK★ 85kApache-2.0commit last week88worth
Open-source alternatives to Faiss
24 projects in the catalog are in the same category as Faiss: RAG & vector DBs. They are ranked by how closely their categories, platforms and GitHub topics match, then by worth score. Of these, 5 run with Docker, 20 have a permissive license and 24 had a commit in the last 90 days.
Compare at a glance
| Project | Runs on | Self-host with Docker | License | Stars | Last commit |
|---|---|---|---|---|---|
| Faiss (this project) | Library / SDK | Not listed | MIT | 41k | |
| Crawl4AI | Docker / self-host, Library / SDK | Yes | Apache-2.0 | 85k | |
| MarkItDown | CLI, Library / SDK | Not listed | MIT | 188k | |
| Docling | CLI, Library / SDK | Not listed | MIT | 68k | |
| LightRAG | Docker / self-host, Library / SDK | Yes | MIT | 40k | |
| OpenViking | Library / SDK | Not listed | AGPL-3.0 | 39k | |
| LlamaIndex | Library / SDK | Not listed | MIT | 52k | |
| gpt-researcher | Web, Docker / self-host, Library / SDK | Yes | Apache-2.0 | 30k | |
| Cognee | Library / SDK | Not listed | Apache-2.0 | 31k | |
| GraphRAG | Library / SDK | Not listed | MIT | 36k | |
| Haystack | Library / SDK | Not listed | Apache-2.0 | 27k | |
| LangChain4j | Library / SDK | Not listed | Apache-2.0 | 13k | |
| OpenDataLoader PDF | Library / SDK | Not listed | Apache-2.0 | 29k | |
| Unstructured | Library / SDK | Not listed | Apache-2.0 | 16k | |
| PaddleOCR | Library / SDK | Not listed | Apache-2.0 | 91k | |
| MinerU | CLI, Library / SDK | Not listed | Custom (read before use) | 81k | |
| Chroma | Docker / self-host, Library / SDK | Yes | Apache-2.0 | 29k | |
| Firecrawl | Web, Docker / self-host, Library / SDK | Yes | AGPL-3.0 | 188k | |
| Marker | CLI, Library / SDK | Not listed | Apache-2.0 | 40k | |
| CocoIndex | Library / SDK | Not listed | Apache-2.0 | 12k | |
| PageIndex | Library / SDK | Not listed | MIT | 39k | |
| Zvec | Library / SDK | Not listed | Apache-2.0 | 16k | |
| txtai | Library / SDK | Not listed | Apache-2.0 | 13k | |
| Pathway | Library / SDK | Not listed | Custom (read before use) | 62k | |
| anydoc | CLI, Library / SDK | Not listed | MIT | 22k |
Libraries & SDKs (24)
MarkItDownmicrosoft/markitdown
Convert Office files and PDFs to Markdown for LLMsPersonalEnterpriseRAG & vector DBsCLILibrary / SDK★ 188kMITcommit 9 hours ago87worth
Doclingdocling-project/docling
Get your documents ready for generative AIPersonalEnterpriseRAG & vector DBsCLILibrary / SDK★ 68kMITcommit 21 hours ago87worth
LightRAGHKUDS/LightRAG
Simple and fast graph-based RAGPersonalEnterpriseRAG & vector DBsDocker / self-hostLibrary / SDK★ 40kMITcommit last week86worth
OpenVikingvolcengine/OpenViking
Context database for AI agentsPersonalEnterpriseRAG & vector DBsLibrary / SDK★ 39kAGPL-3.0commit 17 hours ago86worth
LlamaIndexrun-llama/llama_index
Data framework for LLM applications and agentsEnterpriseAgents & frameworksRAG & vector DBsLibrary / SDK★ 52kMITcommit 2 days ago85worth
gpt-researcherassafelovic/gpt-researcher
Autonomous deep research agent for web and local documentsPersonalAgent skillsAgents & frameworksMCP serversRAG & vector DBsWeb★ 30kApache-2.0commit 7 days ago85worth
Cogneetopoteretes/cognee
Open-source memory platform for agentsPersonalEnterpriseRAG & vector DBsLibrary / SDK★ 31kApache-2.0commit 2 days ago85worth
GraphRAGmicrosoft/graphrag
Graph-based RAG from MicrosoftEnterpriseRAG & vector DBsLibrary / SDK★ 36kMITcommit last week83worth
Haystackdeepset-ai/haystack
AI orchestration for production LLM appsEnterpriseAgents & frameworksRAG & vector DBsLibrary / SDK★ 27kApache-2.0commit 20 hours ago81worth
LangChain4jlangchain4j/langchain4j
LLM apps on the JVMEnterpriseAgents & frameworksRAG & vector DBsLibrary / SDK★ 13kApache-2.0commit 23 hours ago80worth
OpenDataLoader PDFopendataloader-project/opendataloader-pdf
PDF parser for AI-ready dataPersonalEnterpriseRAG & vector DBsLibrary / SDK★ 29kApache-2.0commit 2 days ago79worth
UnstructuredUnstructured-IO/unstructured
Convert documents to structured dataPersonalEnterpriseRAG & vector DBsLibrary / SDK★ 16kApache-2.0commit 15 hours ago79worth
PaddleOCRPaddlePaddle/PaddleOCR
OCR toolkit that turns documents into structured dataPersonalEnterpriseRAG & vector DBsLibrary / SDK★ 91kApache-2.0commit 2 weeks ago78worth
MinerUopendatalab/MinerU
Convert PDFs and Office docs to LLM-ready MarkdownPersonalEnterpriseRAG & vector DBsCLILibrary / SDK★ 81kcommit 4 days ago78worth
Chromachroma-core/chroma
Open-source embedding database for AI appsPersonalEnterpriseDatabases & backendsRAG & vector DBsDocker / self-hostLibrary / SDK★ 29kApache-2.0commit 20 hours ago77worth
Firecrawlfirecrawl/firecrawl
Web data API that turns sites into LLM-ready dataPersonalEnterpriseRAG & vector DBsWebDocker / self-hostLibrary / SDK★ 188kAGPL-3.0commit 12 hours ago77worth
Markerdatalab-to/marker
Convert PDFs to Markdown and JSON with high accuracyPersonalEnterpriseRAG & vector DBsCLILibrary / SDK★ 40kApache-2.0commit yesterday77worth
CocoIndexcocoindex-io/cocoindex
Incremental data engine for agentsPersonalEnterpriseRAG & vector DBsData & analyticsLibrary / SDK★ 12kApache-2.0commit yesterday77worth
PageIndexVectifyAI/PageIndex
Vectorless, reasoning-based RAGPersonalEnterpriseRAG & vector DBsLibrary / SDK★ 39kMITcommit 2 days ago76worth
Zvecalibaba/zvec
In-process vector databasePersonalEnterpriseDatabases & backendsRAG & vector DBsLibrary / SDK★ 16kApache-2.0commit 4 days ago74worth
txtaineuml/txtai
All-in-one framework for semantic search and LLM workflowsPersonalEnterpriseRAG & vector DBsLibrary / SDK★ 13kApache-2.0commit 17 hours ago74worth
Pathwaypathwaycom/pathway
Python ETL for streaming, analytics and live RAGPersonalEnterpriseRAG & vector DBsData & analyticsLibrary / SDK★ 62kcommit yesterday73worth
anydocfirecrawl/anydoc
Convert office files and PDFs to MarkdownPersonalEnterpriseRAG & vector DBsCLILibrary / SDK★ 22kMITcommit last month71worth