Squoosh is unmatched for single images, but completely lacks batch processing. If you've hit the wall of manually compressing files one by one, here are the 5 best alternatives to automate your workflow.
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What Squoosh doesn't do
While Squoosh is an excellent tool for visual comparison, it hits a hard limit when you need to process more than one image.
No batch processing. One image at a time, no exceptions, no workaround in the GUI. If you need to compress a folder of assets, you'll need a dedicated batch tool like FastCompressor.
No TIFF support. Squoosh handles JPG, PNG, WebP, AVIF, and JPEG XL only.
No video. Images only.
No desktop app. Squoosh is a PWA — it runs in a browser tab, which limits CPU access for heavy compression jobs.
No folder automation. No way to watch a folder and compress files as they're saved.
Slowing development. Google Chrome Labs is no longer the primary maintainer, meaning bug fixes and format updates have stalled.
5 Best Squoosh Alternatives in 2026 (With Batch Processing)
Quick comparison
Tool
Price
Batch
Upload?
TIFF
Video
Offline
Platforms
FastCompressor
Free / $19 once
20 free / ∞ Pro
Never
Mac, Win, Linux
TinyPNG
Free / $39/yr
20/session
Server
Browser
ImageOptim
Free
Unlimited
Never
Mac only
iLoveIMG
Free / $4/mo
Unlimited
Server
Browser
Caesium
Free
Unlimited
Never
Win, Linux, Mac
1. FastCompressor — The batch-capable, offline alternative
Price: Free / Pro $19 one-time Batch: 20 images free · unlimited Pro Upload required: Never — fully local Formats: JPG, PNG, WebP, TIFF, AVIF, GIF, MP4, MOV, WebM Platforms: macOS, Windows, Linux
FastCompressor is a native desktop app built for the exact workflow Squoosh can't handle: processing a folder of files, offline, quickly, with nothing uploaded to any server. It shares Squoosh's core privacy principle — files never leave your device — but applies it to batch jobs rather than single images.
What it solves directly:
Batch processing. Drop a folder of 200 images. FastCompressor compresses every file simultaneously using your CPU's parallel cores. The same job that takes 25–30 minutes of manual clicking in Squoosh takes seconds.
TIFF support. FastCompressor compresses TIFF files losslessly, automatically selecting the better algorithm for each file's bit depth. Squoosh doesn't handle TIFF at all.
Video in the same app. Squoosh is images only. FastCompressor compresses MP4, MOV, and WebM natively — no switching to a separate tool.
Native desktop app. FastCompressor launches instantly and uses your full local storage and CPU. Squoosh is capped by what a browser tab can hold.
Folder Watch (Pro). Set a watched folder and FastCompressor automatically compresses every new file saved to it, in the background, with no interaction needed.
2. TinyPNG — Solves the batch problem but adds an upload problem
Price: Free / $39/year Pro Batch: Up to 20 images per session (free) Upload required: Yes — all files go to Tinify's servers Formats: JPG, PNG, WebP, AVIF — no TIFF, no video Platforms: Browser (all platforms)
TinyPNG solves Squoosh's one-image limitation — it processes batches of up to 20 images. For small teams with publicly accessible web images, that's a meaningful step up.
The tradeoff is the opposite of what Squoosh users value: every file uploads to Tinify's servers. Squoosh users typically choose it because of local processing and privacy. TinyPNG removes that entirely. If data privacy is critical, an offline tool like FastCompressor is a safer choice.
Additional constraints: 5 MB file size cap on the free tier, no TIFF support, and no video. TinyPNG Pro at $39/year removes the batch limit but keeps the upload requirement.
3. ImageOptim — Mac-only, limited formats, but genuinely offline
Price: Free (open-source) Batch: Unlimited Upload required: Never Formats: JPG, PNG, GIF, SVG — no TIFF, AVIF, WebP output, no video Platforms: macOS only Cons: Mac only, no TIFF/AVIF/WebP output, no video
ImageOptim has been the standard free Mac compression desktop app for over a decade. It batches well, strips EXIF automatically, and processes everything locally.
The limitations are structural: it only works on macOS. If your team uses Windows or Linux, they're excluded entirely (unlike FastCompressor, which supports all three). Format support is also limited to JPEG, PNG, GIF, and SVG.
ImageOptim is adequate for Mac users compressing JPG and PNG occasionally, but for modern formats and cross-platform workflows, you'll outgrow it quickly.
4. iLoveIMG — Generous free batch tier, but files upload to servers
Price: Free / $4/month Premium Batch: Unlimited on free plan Upload required: Yes — files deleted after 2 hours Formats: JPG, PNG, SVG, GIF — no TIFF, no AVIF, no video Platforms: Browser (all platforms)
iLoveIMG offers unlimited batch compression on the free tier with no account required. It also bundles resizing and format conversion alongside compression.
The core issue for Squoosh users switching for privacy reasons: iLoveIMG is server-based. Every file uploads to iLoveIMG's infrastructure. While files are deleted after two hours, the upload already happened. Squoosh's local processing principle doesn't carry over here.
If you need unlimited batching but want to keep files safely on your local machine, FastCompressor's offline processing is a much better fit.
Price: Free (open-source) Batch: Unlimited Upload required: Never — local desktop app Formats: JPG, PNG, WebP Platforms: Windows, Linux, macOS Cons: No TIFF, AVIF, or video support; lacks advanced automation.
Caesium is a free, open-source desktop compression app that fills the cross-platform gap ImageOptim leaves. Batch jobs process locally using your CPU, maintaining your privacy.
The limitations are meaningful: JPG, PNG, and WebP only. It lacks support for TIFF, AVIF, GIF, and video. It also doesn't feature advanced automation like Folder Watch.
For users who need broader format support, active development, and background folder automation, FastCompressor is the stronger long-term option.
Which should you use?
FastCompressor: For professional, offline batch processing. It's the only tool that takes Squoosh's core principle (100% offline privacy) and scales it up to unlimited batches. With native support for TIFF, video, and advanced folder automation, it's the definitive upgrade for anyone hitting Squoosh's limits.
ImageOptim: If you never use Windows/Linux and only compress JPGs. A decent fallback if you're strictly on macOS and don't need modern formats or video.
iLoveIMG or TinyPNG: If you don't mind your files being uploaded to remote servers. They offer batch compression in the browser, but at the strict cost of your privacy. Every file leaves your machine.
Caesium: If you are on Windows and only compress WebP/JPG. Free and offline, but lacks support for modern professional formats like AVIF, TIFF, and video.
FAQ
Why choose FastCompressor over Squoosh?
Squoosh is brilliant for one image, but it forces you to manually process every single file. FastCompressor completely automates this. You can drop a folder of 1,000 images and it processes them all locally in seconds using your machine's full power.
How does FastCompressor compare to alternatives?
Unlike web-based alternatives (TinyPNG, iLoveIMG), FastCompressor never uploads your files to a server, ensuring 100% privacy. Unlike ImageOptim, it supports Windows, Mac, and Linux, and includes modern formats like AVIF, TIFF, and Video compression.
Who is FastCompressor best for?
It's built for photographers, designers, and developers who need to compress large batches of media securely and quickly, without dealing with browser crashes or cloud upload delays.
How quickly can I get started?
Instantly. FastCompressor is a lightweight native app. You can download the free version right now, install it in seconds, and start compressing your first batch immediately—no account required.