Design
Squoosh
Squoosh is an open-source visual image compression tool originally built by the Google Chrome Labs team. It brings high-performance, expert-level compression codecs into an incredibly user-friendly package that runs entirely inside your sandbox.
Key Features:- Live Visual Slider — pull a split screen across your image to instantly spot quality tradeoffs before saving
- Modern Codecs — supports WebP, AVIF, MozJPEG, and OptiPNG for industry-leading file reduction ratios
- Advanced Tuning — precisely tweak color palette depth, smoothing filters, and individual quality bitrates
- Desktop PWA Experience — can be installed locally on macOS for quick fluid desktop access
- 100% Client-Side — all conversions execute locally using WebAssembly; no assets are uploaded to a cloud
Frequently Asked Questions
Are my images safe with Squoosh?
Completely. Squoosh processes 100% of the image manipulation right inside your local system memory using highly optimized WebAssembly. It only pings basic telemetry (such as before/after file sizes) back to its open analytics framework without saving your photos.
Can I use Squoosh for batch image compression?
Squoosh is heavily built around manual micro-optimization and side-by-side aesthetic refinement, making it ideal for processing images one by one. If you need massive folder-level automated batch compression, a tool like ImageSlim or ImageOptim is a better fit.
What makes Squoosh better than generic online compressors?
Most online tools don't show you a live preview, which results in guesswork. Squoosh gives you full control over specialized engine algorithms (like MozJPEG vs standard JPEG) while visualizing exact artifact changes on a 1:1 scale.
