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ImageCrop Pro – Professional Multi-Crop Image Editor

Inspiration

While working on a 2D tile set for a game project, I needed to extract multiple small assets from a single image.
Surprisingly, none of the popular tools offered a simple way to create and export multiple crop areas efficiently.
I was stuck manually cropping one area at a time—and it was slow, frustrating, and error-prone. That’s when I realized the need for a professional multi-crop image editor, especially one that works right in the browser.

What It Does

ImageCrop Pro lets you:

Add and manage multiple crops on a single image
Independently control each crop’s position, size, and rotation
Use aspect ratio presets or custom dimensions
Generate uniform crop grids for tilesets or product photos
Edit each crop in the Advanced Editor Modal
Export individually or in batch (PNG, JPEG, WebP supported)

How We Built It

Frontend: React + TypeScript using bolt.new
Canvas Rendering: HTML5 <canvas> for smooth, real-time crop interaction
State Management: Modular hooks and component-based architecture

Challenges We Ran Into

Ensuring feature-parity on desktop and mobile, including smooth touch gestures
Efficiently handling large image files without hitting browser memory limits
Managing crop arrays and keeping their state updates in sync

Accomplishments We’re Proud Of

✅ Built a professional-grade browser-based image editor
✅ Designed a beginner-friendly UI with advanced features
✅ Implemented grid + batch workflow end-to-end
✅ Released a free, privacy-first tool with no server-side processing

What We Learned

The importance of great UX in precision tools
How to optimize canvas performance with minimal redraws
Best practices for mouse + touch interface design
The huge impact of features like batch export and crop arrays on productivity
Even simple tasks like cropping become complex at scale