AI App Builders
Open-source AI app builders
6 of the 90 AI app builders in this directory are open source, according to their own sites.
All of them are free or have a free plan.
Listings checked up to Nov 13, 2026 · Where the facts come from
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| DyadOpen-source desktop app that builds web apps with AI, locally | Free plan · from $20/mo | Yes | macOS, Windows, Linux |
| LeapAI agent that builds backend-heavy apps and deploys to your cloud | Free plan · from $30/mo | Yes | Web |
| AppsmithOpen-source low-code platform for internal apps | Free plan · from $15/mo | Yes | Web |
| BudibaseOpen-source platform for internal apps, automations and AI agents | Free plan · from $299/mo | Yes | Web |
| ToolJetLow-code platform for internal tools, workflows and AI agents | Free plan · from $23/mo | Yes | Web |
| MageFree generator that turns a description into a Wasp web app | Free | Free | Web |
Common questions
Which AI app builders are open source?
6 of the 90 AI app builders in this directory are open source, according to their own sites. They are Dyad, Leap, Appsmith, Budibase, ToolJet and Mage.
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 each listing names the pages it was read from.