ImageToolbox is a powerful and versatile open-source image editing application designed for users who need full control over image processing directly on their device.
It can handle from simple tasks like cropping and resizing to advanced operations such as AI-based background removal, OCR, metadata editing, and format transcoding, ImageToolbox brings desktop-grade image tools to Android without privacy compromises.
Its clean interface hides an incredibly deep feature set which makes it suitable for photographers, designers, developers, and power users who want precision and flexibility in one app.
Use Cases
Edit and convert images without uploading them online
Perform batch image processing on mobile
Remove backgrounds, watermarks, or noise
Work with advanced image formats (AVIF, JXL, HEIC, WEBP)
Extract text, metadata, or colors from images
Prepare images for documents, PDFs, or sharing
Screenshots
Features of ImageToolBox
Core Image Editing
Feature
Description
Cropping & Rotation
Regular, free, perspective, and shape-based cropping
Resizing
Adaptive resizing with multiple scaling algorithms
ImageToolbox is not just an image editor, it’s a complete image processing suite for Android.
If you want professional-grade tools, deep customization, advanced AI features & full privacy in a single open-source app, ImageToolbox stands out as one of the most powerful image utilities available on mobile today.
PDF Toolkit is one of those Android apps that feels simple but very useful. You install the APK, open it, and everything runs directly on your device.
The app covers most of the stuff people actually need including merging PDFs, splitting files, compressing documents, converting images to PDF, extracting pages, signing files, adding annotations, and even scanning documents with automatic edge detection.
It does not require internet permission. Most alternatives push everything through cloud APIs or lock basic tools behind subscriptions.
There is also proper OCR support. The Play Store build uses Google ML Kit for smaller downloads, while the open source builds use Tesseract OCR so the entire stack stays fully offline and open source.
Google AI Edge Gallery lets you run open-source LLMs straight on your phone. No cloud. Once you download the models, you're offline.
You get chat, image analysis, audio transcription, prompt testing. All on-device. Newer models like Gemma 4 mean better reasoning and multimodal stuff on mobile hardware.
It’s more like a sandbox where you can test, run, and compare models directly on your device.
Most utility apps usually sit in your app drawer like a normal app. Toolkit Tiles takes a different approach.
It adds practical tools directly to Android’s Quick Settings panel, the same place where you toggle Wi-Fi, Bluetooth, and Flashlight. That means no extra apps to open.
It provides with a quick measurement, A coin flip, A system toggle & more. The app is designed to be lightweight and focused.
