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Up to three tools. The table shows the data as-is, without picking a “best”.
| Field | D2 | Syncthing | Hurl |
|---|---|---|---|
| Platforms | Universal | Universal | Universal |
| Local support | Yes | Yes | Yes |
| Paid API | No | No | No |
| License | MPL-2.0 | MPL-2.0 | Apache-2.0 |
| Stars | 25761 | 89890 | 19288 |
| Last activity | October 11, 2026 | October 13, 2026 | October 17, 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. | Moderate: pair both devices and share folders; APT requires official stable-v2 repository setup first | Easy; API and CLI knowledge required |
| Category | Workflow, UI | Security, Workflow | Testing, 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 an individual working across two computers or a small team sharing files with trusted devices. It moves folder changes instead of repeating manual copies, while keeping device and storage choices under your control. It does not replace independent backups or collaborative editing, and devices holding the files must be reachable. | 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. |