Image Compressor for Mac
Compress and optimize images directly on your Mac — privately, quickly, and in bulk.
Fast Image Compression on macOS
FastCompressor processes your images locally on your Mac instead of uploading them to a remote server for compression. Optimized for modern Mac hardware, with local processing that uses your Mac's available CPU resources.
Your image files aren't uploaded to a remote server for compression. Everything is processed directly on your Mac.
Optimized for modern Mac hardware, with universal support for Apple Silicon and Intel-based Macs.
Your images stay on your Mac. Compress files without requiring an active internet connection.
Compress Images on Mac in 3 Steps
Download FastCompressor for Mac
Get the universal macOS disk image supporting both Apple Silicon and Intel Macs.
Select your images or drop in a folder
Drag individual image files or entire photo folders directly into FastCompressor.
Choose your compression settings and compress locally
Adjust quality or format settings and compress your images directly on your machine.
Why Use FastCompressor on Mac?
A native desktop image compressor built for privacy, speed, and large photo collections.
Compress Images Locally
FastCompressor processes your images locally on your Mac instead of uploading them to a remote server for compression. Client photos, personal documents, and proprietary graphics remain 100% private.
Compress Hundreds or Thousands of Images
Batch compression makes it practical to optimize large image collections and nested folders without waiting for slow upload queues or browser tab crashes.
Control Compression & File Size
Choose compression presets and quality sliders according to your desired balance between file size reduction and crystal-clear image quality.
Work Completely Offline
The core compression workflow runs entirely on your Mac without internet access. Optimize image collections anywhere—on flights, at remote shoot locations, or on metered connections.
Multiple Image Formats
Optimize PNG, JPG, WebP, TIFF, AVIF, GIF, SVG, and PDF documents within one unified macOS application, preserving transparency and color accuracy.
Built for Large Image Collections
Retain nested folder hierarchies or use safe in-place replacement, designed specifically to integrate naturally with macOS Finder and local storage workflows.
What Can You Compress on Mac?
Tailored for everyday photography, web development, ecommerce, and storage management on macOS.
Compress photos before sharing
Quickly reduce high-megapixel iPhone camera shots, DSLR photos, and RAW exports before emailing, AirDropping, or sharing with clients.
Reduce website image sizes
Compress PNG, WebP, and SVG web graphics to slash page load times, elevate Google Core Web Vitals, and improve search rankings.
Optimize images for ecommerce
Batch-optimize product catalogs for Shopify, Amazon, Etsy, and WooCommerce to meet strict marketplace upload size limits.
Compress large image folders
Drop entire photography libraries, client shoot deliveries, or archive folders into FastCompressor to batch-shrink them in a single operation.
Reclaim Mac storage space
Recover gigabytes of internal SSD storage by compressing bulky screenshot directories and unoptimized local media folders.
Prepare images for uploading
Meet tight file size limits on job portals, government documentation portals, and design portfolios without sacrificing sharpness.
Your images stay on your Mac.
FastCompressor compresses your images locally. Your image files aren't uploaded to a remote server for compression.
FastCompressor vs. ImageOptim
Comparing modern local media compression against legacy macOS utilities.
| Capability | ImageOptim (Legacy) | FastCompressor for MacApple Silicon & Intel |
|---|---|---|
Supported Formats Modern web, vector & print | JPG, PNG, GIF only | JPGPNGWebPTIFFAVIFGIFVideo |
Video Compression Video encoding & optimization | No video support | 4K / 1080p MP4, MOV, WebM |
Apple Silicon & Intel Support Hardware utilization across modern Macs | Basic port / Rosetta translation | Apple Silicon & Intel multi-core support |
Folder Watch Automation Background drop directory monitoring | Manual drag only | Auto-compress on drop into watched folder |
Cross-Platform License Multi-device workstation support | macOS only | macOS, Windows, & Linux |
Frequently Asked Questions about Mac Image Compression
Download FastCompressor for Mac
Compress up to 20 files per session completely free forever with no watermarks. Your image files aren't uploaded to a remote server for compression. Need unlimited batch sizes, automated folder watching, or video encoding? Upgrade once to Lifetime Pro.
Explore Format-Specific Compression Tools & Guides
Learn more about lossy and lossless compression algorithms across popular web and print formats.
Not on Mac?
Download for Another OS
Need help installing? Visit FAQ·Installation docs