"In my tests, the detail looked just as good in the compressed images as in the original. There are no visible compression artefacts." — 9to5Mac

Squash is a simple, powerful app for compressing and converting images for the web and more.

Squash Features:
- Drag and drop simplicity, single or multiple images supported
- Reduce file size of images and photos for faster uploading
- Compress JPG, and PNG without losing image quality
- Convert PNGs into JPGs
- convert PSD's, RAW, and TIFF files into JPGs
- Optionally remove private JPG meta data
- Batch convert a folder full images
- Custom prefix file names for converted images

Why Use Squash?
- Reducing the size of files for sending as email attachments.
- Optimize images for websites and email campaigns so they load instantly online.
- Slow internet? Drop images on Squash to save time when uploading to Facebook or Twitter!
- Converting TIFF and RAW files into JPG's so they are web friendly.
- And so much more.

What’s New

Version 2.0.4

- Now compatible with High Sierra
- TIFF images are now squashed correctly
- Other minor bug fixes and enhancements

Ratings and Reviews

3.1 out of 5
9 Ratings
9 Ratings
Pixietale ,

Does what it says

I’ve had and used this app for quite some time now and I need to remember to use it more often. If only the rest of the Internet would use such apps like this more often the Internet as a whole would be so much better-off.

This app really does exactly what they say it does. For highly-compressed JPEG files I still manage to squash an average of 25K out of them. Sure, 25K may seem like nothing, especially in these days of broadband, but every kilobyte saved adds-up. Imagine those graphic-heavy pages, 10 images would be 250K saved. 25 would be 750K. Seriously. I remember the days when a 25K file would take 20 minutes to download. Just because we have blazing speed with broadband these days is really no excuse for not optimizing your images for the Internet.

And it’s not just web pages. An optimized image plopped into your MS Word file makes that Word file smaller. And when that Word file is converted into a PDF file that PDF file is smaller.

Get a clue, people, get this (or something equally as useful) and optimize your junk before plugging up my bandwidth! Hahahah


One, Two, Tree ,

I can wait, but needs a progress bar

Took 10MB off a 38MB PNG image. Also took an hour to do it on my 2017 Retina Macbook 12”. I can wait, but I need to have an idea of how long it will take.

Chi Sox Keith ,

Great app. Does exactly what it says

I have a couple of wallpaper applications over on iOS. Previously I would use Photoshop to compress the images to make the smaller and keep my app sizes to a minimum. Now I can work in full resolution in Photoshop then batch convert the entire directory of images to a lower resolution.

Others have complained that it made their files bigger, but I’ve tested the application on over 200 images so far and the end result has been a smaller image so far. Maybe the others are working with images that are already compressed and Squasher can’t make them smaller further.

This is a great application and well worth the price. It has saved me a ton of time.


Realmac Software Limited
9.8 MB
OS X 10.10 or later, 64-bit processor
Age Rating
Rated 4+
© Realmac Software


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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