Squoosh
GoogleChromeLabs' open-source image compression web app with side-by-side comparison, format conversion, and codec options for MozJPEG, AVIF, and WebP.
Squoosh provides side-by-side before/after comparison across multiple codecs (MozJPEG, AVIF, WebP, PNG) with granular quality and effort sliders. All compression runs locally in the browser, no uploads to a server.
Useful for performance-focused developers choosing the optimal format and compression level for each image. Use it to benchmark AVIF vs WebP quality at different sizes, generate compressed assets for a CMS, and understand the trade-offs between codec options.
URL
https://squoosh.app/Recommended tools
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