> /v1/alternatives/retool
Open source alternatives to Retool[004]
Retool low-code internal tool builder backed by your databases and apis. Below are 4 self-hostable open source alternatives, ranked by GitHub popularity.
AppSmith
Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.
★ STARS
39.8k
⑂ FORKS
4.6k
ToolJet
Open-source low-code platform for creating custom internal tools, dashboards, and admin panels with a drag-and-drop interface
★ STARS
37.9k
⑂ FORKS
5.0k
Budibase
Low-code platform for creating custom business applications quickly. Design, automate, and deploy with ease.
★ STARS
27.9k
⑂ FORKS
2.1k
Windmill
Open-source platform to turn scripts into internal apps & workflows
★ STARS
16.4k
⑂ FORKS
948
// EDITOR'S TAKE
ToolJet and Appsmith are the closest Retool clones; Budibase ships with a built-in database; Windmill leans dev-first.
// FREQUENTLY ASKED
What is the best open source Retool alternative?
AppSmith is the most popular open source Retool alternative by GitHub stars (39,761 stars). The other 3 options are ranked above.
Are these Retool alternatives self-hostable?
Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.
Are they free?
All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.