Open Source Alternatives to Retool
A low-code internal app builder that enables teams to create, deploy, and manage custom tools using AI assistance and secure data connections.
Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Retool give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 8 open source alternatives to Retool. The most popular are AppSmith, ToolJet and Budibase. Most use the MIT or Custom license, and 8 offer an official Docker image.
AppSmith
A low-code platform for building internal tools, admin panels, and dashboards through a drag and drop interface.
ToolJet
A low-code platform for building internal tools and dashboards using a visual drag and drop interface.
Budibase
A low code platform for building internal business applications, automating workflows, and deploying AI agents.
NocoBase
A no-code platform for building business systems using a visual interface and integrated AI coding agents.
Windmill
A developer platform for building internal APIs, background jobs, workflows, and UIs using a code first approach.
Plasmic
A visual builder for web applications and websites that integrates directly with existing React codebases.
SQLPage
Build data centric user interfaces by transforming database queries into interactive websites using only SQL files.
Saltcorn
Build web and mobile database applications using a no-code interface with flexible views and layouts.
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