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Best RAGStack Alternatives in 2026

Updated

20 apps from retrieval-augmented generation tools ranked against RAGStack on the same published basis.

  1. 1
    AnythingLLM Free plan AndroidapiLinuxMacself-hosted 7.5
    RAGStack vs AnythingLLM
  2. 2
    RAGFlow Free plan apiLinuxMacself-hostedWeb $29/mo7.2
    RAGStack vs RAGFlow
  3. 3
    txtai Free plan apiLinuxMacself-hostedWin Free7.2
    RAGStack vs txtai
  4. 4
    Flowise Free plan apiLinuxMacself-hostedWeb $35/mo7.1
    RAGStack vs Flowise
  5. 5
    I3K RAG Enterprise Free plan apiLinuxself-hostedWebWin Free7.1
    RAGStack vs I3K RAG Enterprise
  6. 6
    OpenRAG Free plan apiself-hostedWeb Free7.0
    RAGStack vs OpenRAG
  7. 7
    Dify Free plan apiself-hostedWeb $49.17/mo6.9
    RAGStack vs Dify
  8. 8
    Haystack Enterprise Platform Free plan apiself-hostedWeb Free6.8
    RAGStack vs Haystack Enterprise Platform
  9. 9
    Ragen Free plan apiself-hostedWeb Free6.8
    RAGStack vs Ragen
  10. 10
    Google Cloud Agent Evaluation Free trial apiWeb 6.7
    RAGStack vs Google Cloud Agent Evaluation
  11. 11
    LangChain Free plan apiself-hosted $39/mo6.7
    RAGStack vs LangChain
  12. 12
    Langflow apiLinuxMacself-hostedWeb 6.6
    RAGStack vs Langflow
  13. 13
    Pathway Live Data Framework Free plan apiself-hosted Free6.6
    RAGStack vs Pathway Live Data Framework
  14. 14
    PrivateGPT apiLinuxMacself-hostedWeb 6.5
    RAGStack vs PrivateGPT
  15. 15
    Progress Agentic RAG Free trial apiself-hostedWeb $700/mo6.1
    RAGStack vs Progress Agentic RAG
  16. 16
    Vectara Free trial apiself-hostedWeb $8333.33/mo6.1
    RAGStack vs Vectara
  17. 17
    Haystack Free plan apiself-hosted Free6.0
    RAGStack vs Haystack
  18. 18
    Kapa.ai Free trial apiself-hostedWeb 6.0
    RAGStack vs Kapa.ai
  19. 19
    Graphiti apiself-hosted 5.9
    RAGStack vs Graphiti
  20. 21
    Amazon Bedrock Knowledge Bases Web 5.7
    RAGStack vs Amazon Bedrock Knowledge Bases

RAGStack alternatives compared

#AppScoreFree planFromRuns on
1AnythingLLM7.5Free plan—Android, API, Linux, Mac, self-hosted, Web, Windows
2RAGFlow7.2Free plan$29/moAPI, Linux, Mac, self-hosted, Web
3txtai7.2Free planFreeAPI, Linux, Mac, self-hosted, Windows
4Flowise7.1Free plan$35/moAPI, Linux, Mac, self-hosted, Web, Windows
5I3K RAG Enterprise7.1Free planFreeAPI, Linux, self-hosted, Web, Windows
6OpenRAG7.0Free planFreeAPI, self-hosted, Web
7Dify6.9Free plan$49.17/moAPI, self-hosted, Web
8Haystack Enterprise Platform6.8Free planFreeAPI, self-hosted, Web
9Ragen6.8Free planFreeAPI, self-hosted, Web
10Google Cloud Agent Evaluation6.7No—API, Web
11LangChain6.7Free plan$39/moAPI, self-hosted
12Langflow6.6No—API, Linux, Mac, self-hosted, Web, Windows
13Pathway Live Data Framework6.6Free planFreeAPI, self-hosted
14PrivateGPT6.5No—API, Linux, Mac, self-hosted, Web, Windows
15Progress Agentic RAG6.1No$700/moAPI, self-hosted, Web
16Vectara6.1No$8333.33/moAPI, self-hosted, Web
17Haystack6.0Free planFreeAPI, self-hosted
18Kapa.ai6.0No—API, self-hosted, Web
19Graphiti5.9No—API, self-hosted
21Amazon Bedrock Knowledge Bases5.7No—Web
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Questions about RAGStack alternatives

What is the best alternative to RAGStack?

AnythingLLM, number 1 in retrieval-augmented generation tools with a score of 7.5 out of 10. The others here: RAGFlow, txtai, Flowise and 16 more.

What is the best free alternative to RAGStack?

AnythingLLM is the best-ranked alternative with a free plan. 12 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on.