design

ImageToolbox: Boost Image Editing

Get advanced image manipulation with ImageToolbox, ideal.
14,414 stars628 forksKotlinGuide quality 8/10Updated 8/28/2026100% free · open source
What it does

ImageToolbox is a powerful app for advanced image manipulation, offering dozens of features including crop, draw, filters, OCR, and image processing options.

When to use it
  • When you need to automate image processing tasks, such as resizing or watermarking images
  • When you want to apply filters or effects to images, such as converting to grayscale or sepia tone
  • When you need to extract text from images using OCR (Optical Character Recognition) technology
Ready-to-paste prompt
Apply a sepia tone filter to an image using the `applyFilter()` method: `ImageToolbox.applyFilter(imagePath, Filter.SEPIA)`
Heads up: Make sure you have the necessary Android SDK version installed, as ImageToolbox requires a minimum SDK version of 21 (Android 5.0)
Saves to your device
Use with Claude
New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install
Claude Code
mkdir -p ~/.claude/skills/imagetoolbox && curl -fsSL https://workflowstacks.com/api/skills/imagetoolbox/claude-skill -o ~/.claude/skills/imagetoolbox/SKILL.md
Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)
claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How ImageToolbox: Boost Image Editing works
Codeflow
Free to inspect

ImageToolbox: Boost Image Editing is a very large Kotlin project (~505k lines across 3833 code files, plus 23 test files). It is a full software project: use it through its install path rather than reading it end to end. Last commit this month, Apache-2.0 license, has a test suite.

Size
Very large codebase
~505k lines · 3833 code files · days to read — use, don't read
Setup
Developer setup
A real software project. Use it via its install path; don't expect to read it all.
Runs on
Java/JVM
No API keys detected
Kotlin 100%
Where to start reading
  1. 1
    README.md
    Start here — what it does and how to install it
  2. 2
    core/crash/build.gradle.kts
    Inside core/ — the main logic begins here
What's in each folder
core/Core code — the actual logic2621 files
lib/Core code — the actual logic698 files
app/Core code — the actual logic20 files
feature/Folder2086 files
fastlane/Folder25 files
build-logic/Folder13 files
benchmark/Evaluations & benchmarks4 files
gradle/Folder3 files
READMEHas testsDocumentedCI checksApache-2.0 licenseUpdated this month
Quick Actions
Details
Creator
T8RIN
Language
Kotlin
Category
design
Published
4/6/2022

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