Squoosh

Google Chrome Labs open-source in-browser image compression and format converter.

Open Squoosh

100% Free and Open Source.

Comprehensive Overview

What is Squoosh?

Developed by the Google Chrome team, Squoosh is a privacy-first web application. Because it utilizes WebAssembly codecs (MozJPEG, OxiPNG, WebP, AVIF, QOI), all image processing happens on your local device—no images are uploaded to external servers. It features an interactive before/after visual slider to inspect compression artifacts in real time.

Technical Specifications

Pricing ModelOpen Source

Requires SignupNo (Instant)

Execution RuntimeClient-Side (In-Browser)

PlatformsWeb, CLI

DeveloperGoogle Chrome Labs

Last Verified2026-08-26

Supported Formats:

JPGPNGWEBPAVIFSVGGIF

Editorial Assessment

Pros & Strengths

Complete privacy: files never leave your computer
Unrivaled visual tuning with side-by-side slider at 100% pixel zoom
Completely free, open source, with zero ads or tracking

Limitations

Optimized primarily for single-image fine tuning rather than large batch queues

Supported Tasks & Workflows

Compress Image Online (PNG, JPG, WebP) – Free PNG Shrinker Convert to WebP / AVIF Resize Image

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