Best Open-Source Internal Tool Builders | open-source.storeAll categoriesInternal Tool Builders
Low-code app and dashboard builders
8 tools found 
ToolJet
ToolJet is an open-source Retool alternative for building internal tools and dashboards, connecting to databases and APIs with self-hosted data privacy.
41.2kWebDockerLinux1d ago AGPL-3.0Internal Tool Builders
Appsmith
Self-hosted open-source internal tool builder that turns databases and APIs into reactive admin panels, replacing Retool without per-seat cloud costs.
41.2kWebDockerLinux1d ago Apache-2.0Internal Tool Builders
Refine
Refine is a headless React framework replacing Retool for building internal tools and admin panels with full code ownership and data privacy.
MITInternal Tool Builders
Reflex
Reflex is an open-source Python framework that replaces complex JavaScript toolchains to build full-stack web applications and internal tools.
Apache-2.0Internal Tool Builders
Budibase
An open-source low-code platform to build internal tools and workflows. Self-host fast CRUD apps, automations, and AI agents on your data.
GPL-3.0Internal Tool Builders
NocoBase
NocoBase is an open-source, self-hosted alternative to Airtable and Retool that connects directly to SQL databases with a visual no-code builder.
Internal Tool Builders
Promoted
Free IDE for Java, Kotlin, Go, TypeScript and Python. Built on IntelliJ Community, fully open source, 300+ plugins.
Lowdefy
Lowdefy is an open-source alternative to Retool that lets developers build internal tools and database dashboards using declarative YAML configuration.
Apache-2.0Internal Tool Builders
Baserow
Baserow is an open-source no-code database and internal portal builder that replaces AppSheet with self-hosted relational tables and visual forms.
WebDockerLinux
MITInternal Tool Builders
MITInternal Tool Builders
Linux
1d ago
AGPL-3.0Internal Tool Builders
Linux
1d ago
Apache-2.0Internal Tool Builders