About ImgTweak
A free, privacy-first image compression tool built for everyone who values speed, security, and quality.
Our Mission
ImgTweak was created to solve a simple problem: compressing images shouldn't require uploading them to unknown servers, waiting for processing, or compromising on quality.
We believe everyone deserves access to professional-grade image optimization tools—without sacrificing privacy, speed, or paying subscription fees.
Why We Built This
Privacy Matters
Your images may contain sensitive information—personal photos, business documents, proprietary designs. We built ImgTweak to process everything locally in your browser using WebAssembly, so your files never touch our servers.
Speed Without Compromise
Traditional online compressors require uploading, processing on remote servers, and downloading—wasting time and bandwidth. With WebAssembly-powered compression, we achieve near-native performance directly in your browser.
Professional Quality
We use industry-standard compression libraries—MozJPEG, OxiPNG, libwebp, and libavif—compiled to WebAssembly. These are the same tools used by professional photographers and web developers.
Our Technology
ImgTweak leverages cutting-edge web technologies to deliver desktop-grade performance in your browser:
WebAssembly Core
Near-native performance by compiling C/C++/Rust compression libraries to run directly in the browser.
Modern Formats
Support for next-generation formats like AVIF and JPEG XL, alongside classics like JPEG and PNG.
Client-Side Processing
All image processing happens locally. No uploads, no tracking, no storage—complete privacy.
Open Source Libraries
Built on trusted open-source projects: MozJPEG, OxiPNG, libwebp, libavif, and libjxl.
Our Principles
Privacy First
Your images stay on your device. Always.
Free Forever
No hidden costs, no premium tiers, no watermarks.
No Registration Required
Start compressing immediately. No sign-ups, no emails, no hassle.
Quality Over Everything
Professional-grade compression algorithms preserve visual quality while maximizing file size reduction.