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Web Development

Image Annotation

Box it. Label it. Export it.

A keyboard-first bounding-box editor that runs in your browser. Open your own images, label boxes and export JSON, COCO, YOLO or Pascal VOC.

Source11 stars on GitHub(opens in a new tab)Live demo(opens in a new tab)
Role
Creator
Period
2017 – 2026.11
Status
Completed
Theme
Web apps & extensions
Image Annotation, screenshot 1

Overview

The original 2017 image-labeling tool, rebuilt with React and Vite. Draw and review bounding boxes with zoom, pan, undo and keyboard shortcuts. Images and annotations stay in the browser, with common dataset formats available for import and export.

Results

  • Static GitHub Pages app with browser-local annotation and export

Features

  • Bounding boxes with class colours and keyboard shortcuts
  • Folder import, zoom, pan, undo and redo
  • JSON, COCO, YOLO and Pascal VOC import/export
  • Local browser storage and offline sample images
  • Web apps & extensions77 stars on GitHub

    Streaming Player

    Twitch, YouTube live chat and chat bots share one song queue. A Rust backend keeps the OBS player, overlay and moderator dashboard in sync.

    2026Completed
  • Web apps & extensions11 stars on GitHub

    Gantt Studio

    Drag a schedule into place, draw dependencies and see the critical path. Switch to Mermaid text without losing the plan. Everything stays in your browser.

    2026Completed
  • Web apps & extensions22 stars on GitHub

    morphkit

    Converts and edits images, audio, video and GIFs entirely in the browser. Nothing gets uploaded, mostly because there is nowhere to upload it to.

    2026Active