Compare
Up to three tools. The table shows the data as-is, without picking a “best”.
| Field | D2 | Hurl | Gatus |
|---|---|---|---|
| Platforms | Universal | Universal | Universal |
| Local support | Yes | Yes | Yes |
| Paid API | No | No | No |
| License | MPL-2.0 | Apache-2.0 | Apache-2.0 |
| Stars | 25761 | 19288 | 12447 |
| Last activity | October 11, 2026 | October 17, 2026 | September 24, 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. | Easy; API and CLI knowledge required | سهل إلى متوسط / Easy to moderate |
| Category | Workflow, UI | Testing, DevOps | Security, DevOps |
| 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 a developer or small team that wants repeatable API checks with explicit conditions stored beside the code. It links request data and identifies failing assertions without repeating manual inspection. It does not replace browser tests or test-environment setup; curl may be enough for a one-off request. | Best for an individual developer or small team that wants self-hosted website, API, DNS, and certificate checks with a status page and threshold-based alerts. It combines active checks and simple history in one service. It does not replace resource monitoring, logs, or distributed tracing. |