Annotaforge

Offline box labels and JSON

Purpose-Built

A fully offline image-box annotation desk with user-defined class selection, drag-to-label geometry, undo, normalized coordinates, review counts, and JSON export.

Core Features

Choose a local image without uploading it
Draw multiple rectangular annotations with one of five visible classes
Undo annotations and review box and class counts
Export normalized image-space geometry as JSON

Private by Design

No account, subscription, ads, tracking, third-party analytics, or developer-operated backend. Core features and bundled material work locally; user-directed network tools connect only when requested.

Use It Responsibly

Creates local rectangular annotation records. It does not train, host, or remotely evaluate a model.