Compare
Up to three tools. The table shows the data as-is, without picking a “best”.
| Field | D2 | ntfy | DuckDB |
|---|---|---|---|
| Platforms | Universal | Universal | Universal |
| Local support | Yes | Yes | Yes |
| Paid API | No | No | No |
| License | MPL-2.0 | Apache-2.0 / GPL-2.0 | MIT |
| Stars | 25761 | 35173 | 42680 |
| Last activity | October 11, 2026 | September 29, 2026 | September 28, 2026 |
| Install complexity | Easy with a supported package manager; Homebrew must already be installed for this command. Official binaries, Windows, Linux, and source options are documented. | سهل للتجربة، متوسط للاستضافة الآمنة / Easy to try, moderate to self-host securely | سهل — حزمة Python أو ملف CLI تنفيذي واحد |
| Category | Workflow, UI | Workflow, DevOps | Database |
| Best use | 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. | Best for an individual developer or small team that wants backup, deployment, and scheduled-job alerts without building a notification app. It starts with one HTTP request and can be self-hosted with users and ACLs. It is not a complete incident-management or log-retention system. | Best for an analyst, developer, or small team that needs to inspect and join large data files and rerun analysis locally. It adds reviewable SQL without database-server setup. It is not a multi-user transactional database for many small concurrent writes from separate processes. |