Mass Image Compressor

All In One Image Size Reducer

Only for Mac

Free · In‑App Purchases

Mac

Trusted for over 15 years, Mass Image Compressor is now on Mac - optimized for Mac! Unlimited bulk image compression with high quality, speed and reliability. 1. Drag & Drop Images/Videos/Folders - Mass Image Compressor can recursively scan input folders. 2. Adjust simple settings like quality, size, output format, EXIF copy options.  3. Select an image to see best-in-class live preview of compression parameters. 4. Click "Compress All". 30+ input image format support. Output: JPEG/PNG/HEIC/TIFF/GIF for images, MP4 for video. One app to Compress/Convert/Resize/Watermark photos in bulk to save storage, optimize websites or reduce upload time. Supports most popular image formats and most camera raw formats! Paid features include advanced workflow such as compressed file name changes, image selection filter, custom watermark, keyboard-shortcuts. Security and Privacy: All processing happens locally. We never upload your files to any server. Mass Image Compressor (MIC) is designed to help photographers, web developers, testers, and casual users save storage space without compromising on image quality. Quickly reduce file sizes, change image dimensions, and manage metadata effortlessly. Whether you’re compressing family vacation photos, optimizing images for your website, or archiving RAW files, MIC offers a powerful and user-friendly solution. Key Features: • Compress, Convert, Watermark and Resize thousands of images at once with a single click. • Supports "Open With" Finder context menu. • Multi-Format Support: Compress images of popular formats such as JPEG, PNG, TIFF, HEIC, WebP, AVIF, GIF and even RAW formats like CR2, NEF, ARW, DNG, and more from popular camera brands (Canon, Nikon, Sony, Fujifilm, etc.) to WebP, JPG/JPEG, GIF, PNG, TIFF or HEIC. MP4 & MOV videos will be converted to MP4. • Real-time preview of images and videos compression settings. Preview animated images as well. • Advanced Metadata Management (Images only): Control how metadata is copied to the compressed images. Choose to copy all, exclude sensitive data, or strip metadata entirely. • Lightning-Fast Performance. Use it to believe it! • High-Quality Compression: Achieve 90%+ image compression while maintaining excellent image quality, even for photos taken with digital cameras. • Apply your watermark Mass Image Compressor (MIC) is optimized for: • Photographers: Almost all RAW camera format supported as input • Web Developers: Optimize images for websites/games, reducing load times while maintaining quality. Supports workflow for saving 1x,2x,3x images. • Casual Users: Free up space on your Mac by compressing your photo & video library, maintaining quality - with simple settings. • Working Professionals: Quickly resize screenshots, images for presentations or sharing. Comprehensive Compression Settings: • Quality Adjustment • Dimension Resizing for display or print with custom or predefined size options • Output Format Conversion: Convert 20+ image formats (including camera raw or animated images) to JPEG, PNG, TIFF, HEIC, GIF, WebP. • Apply Watermark Free Version Limitations: • There is no limit on how many times or images you can compress. Quality of compression is same as paid users. Free users don't get features required for advanced workflows mentioned below. Subscription or one-time purchase based features: • Custom watermark images • Option to exclude sensitive metadata • Best-in-class files selection filters to include or exclude files based on file name, size, modification date & type etc. • Output file name manipulations with prefix, suffix, text replace • Contextual Keyboard Shortcuts to speed up the workflow • 'Skip if compressed' not available Credit for sample images used in screenshot: signatureedits.com/free-raw-photos By using this app, you agree to our, 1. Terms & Conditions: https://mic.cognirush.com/terms-and-condition-for-macos-version 2. Privacy Policy : https://mic.cognirush.com/privacy-policy-mic-macos Help Docs: https://mic.cognirush.com/docs/ You can also get instant help for Mass Image Compressor from ChatGPT custom bot (link in software, ChatGPT's privacy policy apply)

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- Option to skip existing file at output location - it is called 'Skip if compressed' - UI fixes to align with macOS 26 - Issue fixes in preview

Version 2.4

The developer, Cognirush Labs LLP, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • Dark Interface

      • Differentiate Without Color Alone

      • Sufficient Contrast

    Information

    • Seller
      • COGNIRUSH LABS LLP
    • Size
      • 8.6 MB
    • Category
      • Photo & Video
    • Compatibility
      Requires macOS 12.4 or later.
      • Mac
        Requires macOS 12.4 or later.
    • Languages
      • English
    • Age Rating
      4+
    • In-App Purchases
      Yes
      • Pro (Monthly) $1.99
      • Pro (Lifetime) $39.99
      • Pro (Yearly) $19.99
      • Standard (Monthly) $0.99
      • Learn More
    • Copyright
      • © 2025 Cognirush Labs LLP
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More