Compare
Up to three tools. The table shows the data as-is, without picking a “best”.
| Field | marimo | act | D2 |
|---|---|---|---|
| Platforms | Universal | GitHub | Universal |
| Local support | Yes | Yes | Yes |
| Paid API | No | No | No |
| License | Apache-2.0 | MIT | MPL-2.0 |
| Stars | 23382 | 72501 | 25772 |
| Last activity | October 29, 2026 | — | October 11, 2026 |
| Install complexity | EASY | — | Easy with a supported package manager; Homebrew must already be installed for this command. Official binaries, Windows, Linux, and source options are documented. |
| Category | Workflow, Data | Testing, Git, DevOps | Workflow, UI |
| Best use | Ideal for a data analyst, Python developer, or small team that wants reproducible experiments, clear Git review, and an interactive report or internal tool from the same source. It is not a replacement for governed BI or a production service requiring enterprise scaling and permissions. | Best for a developer or small team that repeatedly edits GitHub Actions workflows and wants to test a job before pushing. It provides a local run log, while a final GitHub check remains necessary. It is not suitable when exact hosted-runner parity is required. | For developers and small teams that want architecture and data-flow diagrams close to the repository and reviewable as text. Use it when relationships matter more than pixel-perfect placement; not for free-form marketing design or exact manual positioning. |