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Up to three tools. The table shows the data as-is, without picking a “best”.
| Field | D2 | MarkItDown | Syncthing |
|---|---|---|---|
| Platforms | Universal | Universal | Universal |
| Local support | Yes | Yes | Yes |
| Paid API | No | No | No |
| License | MPL-2.0 | MIT | MPL-2.0 |
| Stars | 25761 | 192954 | 89890 |
| Last activity | October 11, 2026 | — | October 13, 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 / Easy | Moderate: pair both devices and share folders; APT requires official stable-v2 repository setup first |
| Category | Workflow, UI | Workflow, Research | Security, Workflow |
| 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 analyst extracting text from several document formats before search or supplying selected passages to an AI agent. It provides a repeatable CLI command and Python library, while requiring review against the original. It is not intended for layout-perfect document publishing. | 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. |