Crop Kit

Crop Kit is an open-source Jetpack Compose library I developed to simplify image cropping on Android. Released in April 2025, this library offers a native, customizable ImageCropper composable, seamlessly integrating into any app, with support for various crop shapes, image transformations and gridline options.

Inspired by a personal need while working on an Android project, I created Crop Kit to address the complexity of image cropping, delivering a compose native production-ready solution with a focus on flexibility and performance.

Features

• Crop Shapes:
  • Free Form: Crop to any desired rectangular size.
  • Original: Maintain the image's original aspect ratio.
  • Aspect Ratio: Specify custom ratios (e.g., 1:1, 16:9, 4:3) for precise cropping.
• Image Transformations:
  • Flip images vertically or horizontally.
  • Rotate images clockwise or counterclockwise by 90 degrees.
• Customizable Gridlines:
  • Options: Always visible, on touch, or never visible.
  • Types: Crosshair, 3x3 grid, circle, 3x3 grid with circle.
• Ease of Integration: Simple setup via JitPack with a single dependency.
• Performance: Optimized for smooth operation in production environments.

Purpose

Developed using Jetpack Compose and Kotlin, Crop Kit began as a solution to a challenge I encountered while building an Android app. I designed the CropController for state management, implemented dynamic grid layouts, and tested extensively to ensure compatibility across different Android versions.

Status

Active: Crop Kit is available under MIT license on GitHub. It is actively maintained, with ongoing updates to add new features, and improving performance.

Link

• GitHub Repository: Crop Kit
• Demo Video: crop-kit/demo
• Blog Post: Introducing Crop Kit on Medium