description Squoosh Overview
Squoosh is an open-source image compression web app developed by Google Chrome Labs. It runs entirely in your browser, meaning your images are never uploaded to a server, ensuring privacy and speed. Squoosh provides a side-by-side comparison of the original and the compressed image, allowing you to fine-tune settings like format, quality, and resizing in real-time. It supports a wide range of formats, including WebP and AVIF.
It is the perfect tool for developers and designers who want full control over the compression process without any cost or privacy concerns.
info Squoosh Specifications
| Cli Tool | Squoosh CLI (Node.js, based on libvips) |
| Platform | Web browser (Chrome, Firefox, Safari, Edge) |
| Open Source | Yes (GitHub repository available) |
| Architecture | Client-side (WebAssembly/Web Workers) |
| Input Formats | JPEG, PNG, WebP, AVIF, GIF, BMP, ICO |
| Output Formats | JPEG, PNG, WebP, AVIF |
| Browser Support | All modern browsers with WebAssembly support |
| Compression Codecs | MozJPEG, WebP, AVIF, OptiPNG, Lossy PNG |
| Progressive Web App | Yes (offline-capable) |
balance Squoosh Pros & Cons
- Client-side processing ensures complete privacy - images never leave the browser
- Multiple advanced codecs including AVIF, WebP, and MozJPEG for optimal compression
- Side-by-side visual comparison helps users find ideal quality-to-size balance
- Open-source with Google Chrome Labs backing ensures reliability and transparency
- Completely free with no watermarks or usage limits
- PWA support enables offline functionality once loaded
- Browser-based interface limits automation - no native API for CI/CD pipelines
- Processing limited to single images - no native batch processing for multiple files
- Relies on device CPU/GPU power - performance varies across hardware
- Advanced codecs like AVIF may have limited browser compatibility for end users
- Interface designed for developers - may overwhelm casual users with technical options
help Squoosh FAQ
How does Squoosh compress images without uploading them to a server?
Squoosh runs entirely in the browser using WebAssembly. When you drop an image, it processes locally using codecs like MozJPEG and AVIF compiled to run in JavaScript. Your image data never leaves your device, ensuring complete privacy.
What image compression codecs does Squoosh support?
Squoosh supports multiple codecs including MozJPEG and WebP for broad compatibility, plus AVIF for next-generation compression. It also offers OptiPNG for PNG files and lossy PNG options, giving users flexibility to choose the best format for their needs.
Can I use Squoosh offline?
Yes, Squoosh is a Progressive Web App (PWA) that caches itself after first load. Once loaded, you can compress images offline without an internet connection. However, you need to load the page initially while online.
Is there a command-line version of Squoosh for automated workflows?
Yes, Google Chrome Labs released the Squoosh CLI (based on libvips) for batch processing and integration into build pipelines. It supports the same codecs as the web app but can process multiple images through scripts.
What are the file size and format limitations on Squoosh?
Squoosh handles most common image sizes and formats including JPEG, PNG, WebP, and AVIF. File size depends on browser memory limits, but for most web optimization tasks (under 20MB), it works seamlessly without issues.
What is Squoosh?
How good is Squoosh?
How much does Squoosh cost?
What are the best alternatives to Squoosh?
How does Squoosh compare to Optimizilla?
Is Squoosh worth it in 2026?
What are the key specifications of Squoosh?
- CLI Tool: Squoosh CLI (Node.js, based on libvips)
- Platform: Web browser (Chrome, Firefox, Safari, Edge)
- Open Source: Yes (GitHub repository available)
- Architecture: Client-side (WebAssembly/Web Workers)
- Input Formats: JPEG, PNG, WebP, AVIF, GIF, BMP, ICO
- Output Formats: JPEG, PNG, WebP, AVIF
explore Explore More
Similar to Squoosh
See all arrow_forward
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
