Best Squoosh Alternative for Mac: Desktop Batch Compression

Updated: 2026-08-07

Squoosh is a free, open-source image compression tool built by Google Chrome Labs. It runs entirely in your browser using WebAssembly codecs, giving you real-time quality previews and fine-grained encoder controls — all without uploading files to any server. If you’re looking for a Squoosh alternative desktop app for Mac, Zipic offers everything Squoosh does and much more: batch processing, workflow automation, offline reliability, and 12 format support.

Here’s how these two tools compare.

At-a-Glance Comparison

Feature	Zipic	Squoosh
Type	Native macOS app	Browser-based web app
Processing	100% local on your Mac	Local in browser (WebAssembly)
Supported formats	JPEG, PNG, WebP, HEIC, GIF, AVIF, TIFF, ICNS, PDF, JPEG-XL, SVG, APNG	MozJPEG, OxiPNG, WebP, AVIF, JPEG XL, browser-native codecs
Batch processing	Unlimited files and folders (Pro)	Single image only
Compression control	six quality steps + presets	Full encoder settings per codec
Format conversion	Yes — convert between any supported format	Yes — output to different codec
Resize	Yes — width/height with aspect ratio	Yes — resize options available
Real-time preview	Side-by-side before/after (Pro)	Split-view slider comparison
Folder monitoring	Yes (Pro)	No
Notch Drop	Yes (Pro)	No
Raycast / Shortcuts	Yes (Pro)	No
CLI	URL Scheme + Apple Shortcuts	Squoosh CLI (npm package)
Offline usage	Always — no internet needed	PWA with limitations
Price	Free (25/day) / Pro $19.99 one-time	Completely free

Need batch compression outside the browser? Download Zipic as a Squoosh desktop alternative for Mac — free daily allowance plus a full 7-day Pro trial.

Privacy and Processing

Both Zipic and Squoosh process images locally — your files never leave your device. This is a significant advantage over cloud-based tools like TinyPNG that require uploading to remote servers.

The difference is how they achieve local processing:

• Squoosh runs WebAssembly codecs inside your browser tab. Processing is tied to the browser — if the tab crashes, your work is gone. Performance depends on browser memory limits and tab resources.
• Zipic is a native macOS app. It runs as a standalone process with direct access to system resources, Apple Silicon optimization, and no browser overhead.

For privacy, both are excellent. For reliability and performance, a native app has clear advantages.

Format Support

Squoosh offers strong codec options through its WebAssembly modules:

Format / Codec	Zipic	Squoosh
JPEG (MozJPEG)	✅	✅
PNG (OxiPNG)	✅	✅
WebP	✅	✅
AVIF	✅ (Pro)	✅
JPEG XL	✅ (Pro)	✅
HEIC	✅	❌
TIFF	✅ (Pro)	❌
ICNS	✅ (Pro)	❌
PDF	✅ (Pro)	❌
GIF	✅	❌
SVG	✅ (Pro)	❌
APNG	✅ (Pro)	❌

Squoosh covers the major web-oriented codecs well. Zipic goes further with system and professional formats — HEIC (iPhone photos), TIFF (print workflows), ICNS (macOS app icons), PDF, and GIF.

Both tools can convert between their supported formats during compression. For a deeper look at when to use each format, see the format selection guide.

Compression Quality and Control

This is one area where Squoosh genuinely shines. It exposes the full encoder settings for each codec — quality sliders, effort levels, chroma subsampling, and more. For users who want to fine-tune compression parameters for a single image, Squoosh gives exceptional control.

Zipic takes a different approach with six quality steps (Q1–Q6) and a preset system:

• Q1–Q2 — near-lossless, ideal for archival and print
• Q2–Q3 — balanced quality-to-size ratio (recommended for most users)
• Q4–Q6 — aggressive compression for web thumbnails and email

Squoosh gives more granular control per image. Zipic gives faster, repeatable results across hundreds or thousands of images. The right choice depends on whether you optimize one image at a time or need to process batches consistently. Learn more about compression settings.

Batch Processing — The Biggest Difference

This is where the comparison tips decisively.

Squoosh processes exactly one image at a time. There’s no way to select multiple files, drag a folder, or queue images. Every image requires the full manual workflow: open, adjust settings, download, repeat. Compressing 50 product photos means doing this 50 times.

Zipic handles batch processing natively:

• Drag and drop entire folders
• Select hundreds of files at once
• Process them all with your chosen preset
• No per-file interaction required

Zipic Free allows 25 images per day. Zipic Pro removes all limits — unlimited files, unlimited folders, no daily cap. If you regularly compress images in batches, this alone justifies choosing a desktop app.

Workflow and Automation

Squoosh has no automation features in the browser app. The Squoosh CLI (an npm package) can process multiple images programmatically, but it’s a developer tool — not something most users will set up.

Zipic offers deep macOS integration:

• Folder monitoring (Pro) — auto-compress new images added to watched directories. Set it on your Screenshots folder or Downloads and never think about compression again. See the folder monitoring guide.
• Notch Drop (Pro) — drag files toward the screen notch for instant compression without opening the app
• Clipboard auto-compress (Pro) — copy an image and it’s compressed automatically
• Raycast extension — compress from the Raycast command palette
• URL Scheme + Apple Shortcuts (Pro) — build custom automation workflows with full parameter control

For anyone who compresses images as part of a regular workflow — designers, developers, content creators — these automation features save significant time over manual browser-based compression.

Offline Capability

Squoosh is a Progressive Web App (PWA), which means it can work offline after the initial page load. But there are caveats:

• You need to load squoosh.app at least once with internet to cache it
• Browser cache clearing removes offline access
• Some codecs may not be available offline
• PWA reliability varies across browsers and OS versions

Zipic works completely offline from the moment you install it. No internet connection required — ever. Install once, use forever, regardless of network status.

Pricing

Squoosh is completely free. No limits, no premium tier, no account needed. It’s an open-source project maintained by Google Chrome Labs.

Zipic has a free tier with 25 compressions per day (5 basic formats). Zipic Pro is a one-time purchase of $19.99 — no subscription — unlocking unlimited compressions, all 12 formats, and full automation features.

	Squoosh	Zipic Free	Zipic Pro
Price	Free	Free	$19.99 (one-time)
Daily limit	Unlimited (one at a time)	25 images	Unlimited
Formats	5–6 codecs	5	12
Batch processing	No	Yes (25/day)	Yes (unlimited)
Automation	No (CLI for developers)	Basic	Full

Competitor details were last checked on 2026-03-07.

When to Choose Squoosh

• Fine-tuning a single image — you want to experiment with codec settings and see real-time results
• Cross-platform use — you need compression on Windows, Linux, or ChromeOS (not just Mac)
• Zero cost — budget is zero and you don’t need batch processing
• Quick one-off task — compress one screenshot without installing anything
• Developer exploration — you want to compare codec outputs side by side

When to Choose Zipic

• Batch processing — you compress more than one image at a time, regularly
• Workflow automation — folder monitoring, Notch Drop, Shortcuts, Raycast
• More formats — HEIC, TIFF, ICNS, PDF, GIF, SVG, APNG alongside JPEG, PNG, WebP, AVIF, JPEG XL
• Offline reliability — true offline access, no browser dependency
• Performance — native Apple Silicon app vs. browser-based WebAssembly
• Professional workflows — consistent presets across large batches of files

Final Verdict

Squoosh is an excellent tool for what it does — single-image compression with deep codec controls, completely free, running locally in your browser. Google Chrome Labs built something genuinely useful, and the real-time preview slider is one of the best in any compression tool.

Zipic is the right choice when you need to move beyond single-image workflows. Batch processing, folder monitoring, format conversion across 12 formats, Notch Drop, Shortcuts integration, and true offline capability make it a complete image compression solution for macOS. At $19.99 one-time, it’s a modest investment for dramatically increased productivity.

Both tools keep your images local and private. The question is whether you compress one image at a time in a browser, or need a professional-grade tool integrated into your Mac workflow.

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Ready to leave single-image browser compression? Download Zipic free for local batch work on Mac. Free daily allowance plus a full 7-day Pro trial. Upgrade to Zipic Pro for unlimited batch processing, all 12 formats, and automation.

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Explore all features in the Zipic documentation.