GitPedia

Squish

Squish - Batch Browser-based Image Compression

From addyosmaniΒ·Updated June 5, 2026Β·View on GitHubΒ·

A modern, browser-based image compression tool that leverages WebAssembly for high-performance image optimization. Squish supports multiple formats and provides an intuitive interface for compressing your images without compromising quality. The project is written primarily in TypeScript, distributed under the MIT License license, first published in 2024. It has gained significant community traction with 1,044 stars and 108 forks on GitHub. Key topics include: batch, batch-processing, image-compression, image-processing.

Squish 🎨

License: MIT

A modern, browser-based image compression tool that leverages WebAssembly for high-performance image optimization. Squish supports multiple formats and provides an intuitive interface for compressing your images without compromising quality.

✨ Features

  • πŸ–ΌοΈ Support for multiple image formats:

    • AVIF (AV1 Image Format)
    • JPEG (using MozJPEG)
    • JPEG XL
    • PNG (using OxiPNG)
    • WebP
  • πŸš€ Key capabilities:

    • Browser-based compression (no server uploads needed)
    • Batch processing support
    • Format conversion
    • Quality adjustment per format
    • Real-time preview
    • Size reduction statistics
    • Drag and drop interface
    • Smart queue for compressing large number of files

πŸ› οΈ Technology

Squish is built with modern web technologies:

  • React + TypeScript for the UI
  • Vite for blazing fast development
  • WebAssembly for native-speed image processing
  • Tailwind CSS for styling
  • jSquash for image codec implementations

πŸš€ Getting Started

Prerequisites

  • Node.js 18 or later
  • npm 7 or later

Installation

  1. Clone the repository:
bash
git clone https://github.com/addyosmani/squish.git cd squish
  1. Install dependencies:
bash
npm install
  1. Start the development server:
bash
npm run dev
  1. Build for production:
bash
npm run build

πŸ’‘ Usage

  1. Drop or Select Images: Drag and drop images onto the upload area or click to select files
  2. Choose Output Format: Select your desired output format (AVIF, JPEG, JPEG XL, PNG, or WebP)
  3. Adjust Quality: Use the quality slider to balance between file size and image quality
  4. Download: Download individual images or use the "Download All" button for batch downloads

πŸ”§ Default Quality Settings

  • AVIF: 50%
  • JPEG: 75%
  • JPEG XL: 75%
  • PNG: Lossless
  • WebP: 75%

🀝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

  1. Fork the repository
  2. Create your feature branch (git checkout -b feature/AmazingFeature)
  3. Commit your changes (git commit -m 'Add some AmazingFeature')
  4. Push to the branch (git push origin feature/AmazingFeature)
  5. Open a Pull Request

πŸ“ License

This project is licensed under the MIT License - see the LICENSE file for details.

πŸ™ Acknowledgments

Contributors

Showing top 2 contributors by commit count.

View all contributors on GitHub β†’

This article is auto-generated from addyosmani/squish via the GitHub API.Last fetched: 6/15/2026