Google's in-browser image compression tool
Introduction
Squoosh is Google’s in-browser image compressor: fully local processing with nothing uploaded, live comparison across MozJPEG, WebP, AVIF and more codecs, and a before/after slider to inspect quality. The standard tool for compressing web assets — privacy and quality in one.
Key Features
- Fully local, zero upload
- Multi-codec comparison
- Before/after quality slider
- Batch via the CLI version
- Open-source and self-hostable
Pros
- Private, safe and visual
- Widest codec selection
Cons
- Web version is one image at a time
Pricing
Completely free and open-source.（See official site for current pricing）
FAQ
Are images uploaded?
No — everything is local via WebAssembly.
WebP or AVIF?
WebP for compatibility; AVIF for maximum compression.
Batch processing?
Use the official Squoosh CLI.
Related Sites
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