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Open source StackAI alternatives: 1 app ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

1 of the 6 StackAI alternatives we track are open source. Langflow ranks highest, with facts last verified Nov 8, 2026.

StackAI has been acquired. Being acquired by Asana, according to an announcement on the StackAI website.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1Langflow logoLangflowOpen source—YesWeb, Windows, macOS +25 of 564.8
  1. Langflow logo

    1. LangflowTop pick

    Best for: Developers prototyping AI agents and RAG flows visually who want Python-level control

    Open sourceSelf-hostableWeb, Windows, macOS, Linux, Self-hosted

    64.8

    score / 100

    Why switch from StackAI

    Open-source visual agent builder you can self-host for free, with full Python control.

    Pros

    • MIT licensed and free to self-host
    • Every component is editable Python code
    • Can expose flows as MCP servers and connect to external MCP tools
    • Works with many LLM providers and vector stores

    Cons

    • Assumes some understanding of LLM concepts like embeddings and vector stores
    • Self-hosted production setups need your own scaling and monitoring
    • No built-in channel integrations like WhatsApp or live-agent handoff
    Visit Langflow Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Langflow a good StackAI alternative?

    Verified facts

    5 of 5 verified
    License
    MIT
    Checked Nov 8, 2026github.com(opens source in a new tab)
    Open source
    Yes, Python-based
    Checked Nov 8, 2026docs.langflow.org(opens source in a new tab)
    MCP server
    Yes
    Checked Nov 8, 2026docs.langflow.org(opens source in a new tab)
    Desktop app
    Langflow Desktop
    Checked Nov 8, 2026docs.langflow.org(opens source in a new tab)
    Cloud
    Free cloud account
    Checked Nov 8, 2026langflow.org(opens source in a new tab)