IIIF Annotator

Important Notice

This service uses Google Firebase's free tier and has the following limitations:

Annotation data is stored in Firestore, but permanent storage is not guaranteed
Due to free tier limitations, data may be deleted at any time
We strongly recommend regularly backing up important data using the export feature

Edit Manifest

Enter IIIF manifest URL to edit

View Collection

Enter IIIF collection URL to view

What's New

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Added thumbnail navigation2026-04-06

Added thumbnail browsing to the editor. Switch between annotation list and thumbnail list in the left sidebar. A thumbnail strip below the viewer also enables easy page navigation.

Added OCR text recognition2026-03-15

Added client-side Japanese classical document OCR using NDL Koten OCR-lite. OCR results can be saved as annotations.

Added My Annotations page2026-02-20

Added a page for logged-in users to search and browse all their saved annotations across manifests.