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FlutterFlow alternatives · App Builders

Open-source alternatives to FlutterFlow

FlutterFlow is not described as open source on its own site. 6 of the 89 other AI app builders in this directory are open source, according to their own sites.

FlutterFlow has a free plan. Paid plans start at $29 per month, billed yearly ($39 billed monthly). All of them are free or have a free plan.

6 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

How each one differs from FlutterFlow

  1. Dyad

    Open-source desktop app that builds web apps with AI, locally

    • Dyad starts at $20 per month (Dyad Pro). FlutterFlow starts at $29 per month, billed yearly ($39 billed monthly).
    • Only Dyad lists macOS, Windows and Linux apps.
    • Only FlutterFlow lists a web app.
    • Dyad is open source, according to its own site.
    Dyad pricing and details

  2. Leap

    AI agent that builds backend-heavy apps and deploys to your cloud

    • Leap starts at $30 per month for 100 credits. FlutterFlow starts at $29 per month, billed yearly ($39 billed monthly).
    • Leap is open source, according to its own site.
    • FlutterFlow also covers no-code.
    Leap pricing and details

  3. Budibase

    Open-source platform for internal apps, automations and AI agents

    • Budibase starts at $299 per month and up (Budibase Cloud, billing basis not shown). FlutterFlow starts at $29 per month, billed yearly ($39 billed monthly).
    • Budibase is open source and self-hostable, according to its own site.
    • Budibase also covers workflow automation.
    Budibase pricing and details

  4. ToolJet

    Low-code platform for internal tools, workflows and AI agents

    • ToolJet starts at $23 per builder / month, billed annually ($29 billed monthly). FlutterFlow starts at $29 per month, billed yearly ($39 billed monthly).
    • ToolJet is open source and self-hostable, according to its own site.
    • ToolJet also covers databases and workflow automation.
    ToolJet pricing and details

  5. Appsmith

    Open-source low-code platform for internal apps

    • Appsmith starts at $15 per user / month. FlutterFlow starts at $29 per month, billed yearly ($39 billed monthly).
    • Appsmith is open source and self-hostable, according to its own site.
    • FlutterFlow also covers AI agents and no-code.
    Appsmith pricing and details

  6. Mage

    Free generator that turns a description into a Wasp web app

    • Mage is free. FlutterFlow starts at $29 per month, billed yearly ($39 billed monthly).
    • Mage is open source, according to its own site.
    • FlutterFlow also covers AI agents and no-code.
    Mage pricing and details

Common questions

Is there an open-source alternative to FlutterFlow?

Yes. Dyad, Leap, Budibase, ToolJet, Appsmith and Mage are open source, according to their own sites.

Is FlutterFlow open source?

FlutterFlow is not described as open source on its own site. The listing was checked on Nov 12, 2026 against the pages it cites.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to FlutterFlow: the alternatives its listing names first, then the tools that share the most features with it.