About PixStack
PixStack provides fast, privacy-first bulk image tools — compress, convert, resize, crop, and optimize — all watermark-free. Built with a modular architecture so new tools are easy to add and maintain.
Mission & Principles
- Privacy-first by design — processing is ephemeral; images are never stored permanently.
- Speed and reliability — a lean pipeline powered by sharp and a small concurrency queue.
- Developer-friendly — modular processors, clear APIs, and comprehensive tests.
- Accessible UX — predictable flows, clear feedback, and keyboard-friendly controls.
Architecture (High Level)
The app uses Next.js (App Router) with server routes for each tool. Client-side processors submit FormData to the corresponding API route, and a small ImageQueue coordinates concurrency with abort support. Utilities and validators enforce safe, predictable behavior.
- Processors registered in a central registry and invoked by tool UIs
- Server routes use sharp for image operations and return binary responses
- Consistent headers and metadata for size/quality reporting
- Comprehensive test coverage across tools and building blocks
Get Started
Pick a tool to start processing images in bulk. Everything is free and watermark-free.