[Plugin] Zotero Folder Drop Importer: Import nested folder hierarchies into collections

Hi everyone,

I have created an open-source plugin for Zotero called Zotero Folder Drop Importer (current version: 1.1.0-alpha.3).

What it does:
It allows you to import entire directory structures into Zotero collections, automatically preserving folder hierarchies as nested collections and importing all PDFs within them in a single step.

Key features:
- Preserves folder structures as nested collections
- Multiple import methods: Drag and drop folders onto Zotero, File -> Import Folder..., or right-click any collection and choose "Import Folder Here..."
- Safe deduplication based on filename and file size
- 100% offline and local: no background watchers, no network requests, no telemetry, and never modifies or deletes source files
- Multi-folder drop safeguards and progress controls with safe stop

Links:
- GitHub: https://github.com/suraj1kc/zotero-folder-drop-importer
- Release (.xpi download): https://github.com/suraj1kc/zotero-folder-drop-importer/releases/tag/v1.1.0-alpha.3
- Blog Post: https://surajkatwal.com.np/blog/building-zotero-folder-drop-importer/

Feedback, bug reports, and suggestions are very welcome!
  • Hi suraj1k,
    I’m really grateful to you for this development. My previous plugin no longer worked with Zotero 8–10, and I really need to be able to import entire folders into Zotero.
    After a few tries, it seems to be working quite well.
    So, thanks, and keep up the good work…
    Have a great day, and best regards,
    Thomas
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