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Bubble alternatives · App Builders

Open-source alternatives to Bubble

Bubble 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.

Bubble has a free plan. Paid plans start at $32 per month, billed annually (Starter, web only); $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 Bubble

  1. Appsmith

    Open-source low-code platform for internal apps

    • Appsmith starts at $15 per user / month. Bubble starts at $32 per month, billed annually (Starter, web only); $39 billed monthly.
    • Appsmith is open source and self-hostable, according to its own site.
    • Bubble also covers no-code.
    Appsmith vs BubbleAppsmith pricing and details

  2. Dyad

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

    • Dyad starts at $20 per month (Dyad Pro). Bubble starts at $32 per month, billed annually (Starter, web only); $39 billed monthly.
    • Only Dyad lists macOS, Windows and Linux apps.
    • Only Bubble lists a web app.
    • Dyad is open source, according to its own site.
    Dyad pricing and details

  3. Leap

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

    • Leap starts at $30 per month for 100 credits. Bubble starts at $32 per month, billed annually (Starter, web only); $39 billed monthly.
    • Leap is open source, according to its own site.
    • Leap also covers AI agents.
    • Bubble also covers no-code.
    Leap pricing and details

  4. 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). Bubble starts at $32 per month, billed annually (Starter, web only); $39 billed monthly.
    • Budibase is open source and self-hostable, according to its own site.
    • Budibase also covers workflow automation and AI agents.
    Budibase pricing and details

  5. ToolJet

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

    • ToolJet starts at $23 per builder / month, billed annually ($29 billed monthly). Bubble starts at $32 per month, billed annually (Starter, web only); $39 billed monthly.
    • ToolJet is open source and self-hostable, according to its own site.
    • ToolJet also covers databases, workflow automation and AI agents.
    ToolJet pricing and details

  6. Mage

    Free generator that turns a description into a Wasp web app

    • Mage is free. Bubble starts at $32 per month, billed annually (Starter, web only); $39 billed monthly.
    • Mage is open source, according to its own site.
    • Bubble also covers no-code.
    Mage pricing and details

Common questions

Is there an open-source alternative to Bubble?

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

Is Bubble open source?

Bubble is not described as open source on its own site. The listing was checked on Nov 2, 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 Bubble: the alternatives its listing names first, then the tools that share the most features with it.