t8rin/imagetoolbox

★ 12,833KotlinAudience · generalComplexity · 3/5Setup · moderate

Mindmap

mindmap
  root((Image Toolbox))
    Basic tools
      Crop and resize
      Draw on images
      Apply filters
    Advanced features
      Background removal
      OCR text extraction
      EXIF metadata editing
      AI enhancement
    Platform
      Android 7 and above
      Material You design
      Jetpack Compose UI
    Distribution
      Google Play Store
      F-Droid open source
      Telegram community

mindmap root((Image Toolbox)) Basic tools Crop and resize Draw on images Apply filters Advanced features Background removal OCR text extraction EXIF metadata editing AI enhancement Platform Android 7 and above Material You design Jetpack Compose UI Distribution Google Play Store F-Droid open source Telegram community

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Things people build with this

USE CASE 1

Edit photos on Android by cropping, drawing, resizing, and applying filters without any desktop software.

USE CASE 2

Remove image backgrounds automatically using the built-in AI-powered background eraser on your phone.

USE CASE 3

Extract printed text from photos using the OCR feature and copy it directly to your clipboard.

USE CASE 4

Study the Kotlin and Jetpack Compose source code as a reference for building complex Android image-processing apps.

Tech stack

KotlinJetpack ComposeAndroid

Getting it running

Difficulty · moderate Time to first run · 5min

Installing from Play Store or F-Droid takes under 5 minutes, building from source requires Android Studio and Gradle setup.

In plain English

Image Toolbox is an Android application for photo editing and image manipulation. It covers a wide range of tasks, from basic operations like cropping, drawing on images, and resizing, to more involved processing such as applying filters, erasing backgrounds, editing EXIF metadata, running OCR (which reads text from images), and AI-based image enhancement. The app is available on both the Google Play Store and F-Droid, the open-source Android app repository. The app targets Android API 24 and above, which corresponds to Android 7.0 and later devices. It is built with Kotlin using Jetpack Compose, the modern Android UI toolkit, and supports the Material You visual system that adapts the color scheme to match the phone's wallpaper on supported Android versions. The README describes the tool as suited for both photographers who want quick editing on mobile and developers who may want to study or build on the codebase. The feature list in the description mentions dozens of capabilities, from simple tools to more complex image processing options, though specific details about each feature are spread across the project wiki rather than the README itself. The project has an active community on Telegram with a chat channel and a separate channel for continuous integration updates. A wiki page is linked from the repository for FAQ and extended documentation. The codebase is open source. Background removal and AI image enhancement are listed as features, but the README does not explain the underlying implementation within the visible section. The full README is longer than what was shown.

Copy-paste prompts

Prompt 1

I am studying the Image Toolbox Android codebase. Show me how the Jetpack Compose UI layer connects to the image processing pipeline for the background removal feature.

Prompt 2

Using Image Toolbox as a reference, help me implement a custom Kotlin image filter in Jetpack Compose that applies a vintage sepia tone effect to a Bitmap.

Prompt 3

How does Image Toolbox handle EXIF metadata reading and editing in Kotlin? Show me the pattern I can reuse in my own Android camera app.

Prompt 4

I want to add a new processing tool to Image Toolbox. Walk me through the existing module architecture so I know where to add a new image processing screen.

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