Top pick · highest health
ToolJet
Low-code framework to build & deploy internal tools with minimal engineering effort (alternative to Retool and Mendix).
DockerNodejsK8S
Software Development - Low Code
Open source alternatives to Bubble
We track 4 open-source Bubble alternatives, of which 4 currently score 70 or above on Repoly's GitHub health scale and 4 ship a Docker image. ToolJet leads on health at 98/100 with 2011 commits in the last 90 days; across all 4 projects you are choosing between Apache-2.0, BUSL-1.1, GPL-3.0 and 1 other licences.
updated Oct 2026 4 alternatives best health 98 ★ 149k combined 4,926 commits / 90d 4 with Docker
Top picks to replace Bubble
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Healthiest
Health 98/100: 2,011 commits in 90 days, latest release v3.20.252-lts, Docker image available.
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Most active
2,560 commits in the last 90 days, more than any other option here.
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Permissive licence
Apache-2.0, so you can fork or embed it without publishing changes; health 98/100.
Showing 4 of 4 tools
All 4 Bubble alternatives, ranked by health
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Appsmith
Build admin panels, CRUD apps and workflows. Build everything you need, 10x faster.
DockerJavaK8S -
Directus
An Instant App & API for your SQL Database. Directus wraps your new or existing SQL database with a realtime GraphQL+REST API for developers, and an intuitive admin app for non-technical users.
DockerNodejs -
Budibase
Build and automate internal tools, admin panels, dashboards, CRUD apps, and more, in minutes (alternative to Outsystems, Retool, Mendix, Appian).
DockerNodejsK8S
Bubble alternatives compared
ToolJet and Appsmith tie at 98/100. ToolJet also has the largest following, at 41k stars.
The most recent release is ToolJet v3.20.252-lts, published today. None of the measured options scores under 40. By stack, Nodejs (3) and Java (1) are the most common. Appsmith is permissively licensed; ToolJet is copyleft. Directus and Budibase are source-available rather than open source, which limits commercial reuse.
3 of these 4 also appear among the Mendix alternatives; Directus is specific to Bubble.
| Tool | Health | Stars | Licence | Last commit | Docker |
|---|---|---|---|---|---|
| ToolJet Steady at 98 since 11 Sep | 98 | 41k | GPL-3.0 | today | Yes |
| Appsmith Steady at 98 since 11 Sep | 98 | 41k | Apache-2.0 | today | Yes |
| Directus Steady at 98 since 11 Sep | 98 | 39k | BUSL-1.1 | yesterday | Yes |
| Budibase Steady at 98 since 11 Sep | 98 | 28k | ⊘ Proprietary | yesterday | Yes |
Bubble alternatives: common questions
What is the most maintained open source alternative to Bubble?
ToolJet scores highest at 98/100, with 2011 commits in the last 90 days, 41k stars on GitHub and its latest release (v3.20.252-lts) published today. Budibase has the most raw commit activity at 2560 commits in 90 days.
Which Bubble alternatives use a permissive licence?
1 of 4 are permissively licensed (MIT, Apache, BSD or similar): Appsmith (Apache-2.0). 1 use copyleft licences such as GPL or AGPL, which require you to publish changes if you distribute a modified version.
Which Bubble alternatives run in Docker?
4 of 4 publish a Docker image or Compose file: ToolJet, Appsmith, Directus, Budibase. Docker support contributes 10 of the 100 available health points, because it is the clearest signal that self-hosting is a supported path rather than an afterthought.
Is ToolJet or Appsmith the better Bubble alternative?
On measured health ToolJet leads, 98 to 98. ToolJet has 2,011 commits in 90 days, 41k stars and v3.20.252-lts from today; Appsmith has 214 commits in 90 days, 41k stars and v2.6.0 from 2 days ago. Pick Appsmith if licensing matters: it is Apache-2.0, while ToolJet is GPL-3.0.
Are the Bubble alternatives still maintained?
4 of the 4 measured options score 70 or above. Every measured option had commits in the last 90 days. None scores under 40.
What languages are the Bubble alternatives written in?
Nodejs: ToolJet, Directus and Budibase. Java: Appsmith. The stack matters if you plan to extend or patch the tool yourself.
