Alternatives to Squash - Web Image Compression for all platforms with any license

ImageOptim

ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality.

Free Open Source Mac
Remove EXIF Data Lossless Compression Support for Multiple threads PNG Compression Add a feature

68 Like
Caesium Image Compressor

Caesium Image Compressor lets you compress your pictures up to 90% without visible quality loss. Providing a simple yet effective interface with a real-time preview and...

Free Open Source Mac Windows Linux Web Android
Batch rename files Batch processing Drag n drop Multiple languages ... Portable Add a feature

33 Like
RIOT - Radical Image Optimization Tool

Saving images for web/email/other media with the best compression ratio and quality is a difficult task if you don’t have the right tools. Choosing the right format then...

Free Windows GIMP XnView IrfanView
No features added Add a feature

77 Like
FileOptimizer

FileOptimizer is an advanced file optimizer featuring a lossless file size reduction.

Free Open Source Windows Linux Wine
Drag n drop Portable Add a feature

28 Like
FastStone Photo Resizer

Convert and Rename images in batch mode Support JPEG, BMP, GIF, PNG, TIFF and JPEG2000 Resize, crop, change color depth, apply color effects, add text, watermark...

Free Personal Windows
Batch processing Image resizing Watermarking Add a feature

23 Like
pngquant

pngquant is a command-line utility and a library for lossy compression of PNG images. The conversion reduces file sizes significantly (often as much as 70%) and...

Free Open Source Mac Windows Linux
No features added Add a feature

7 Like
Image Resizer for Windows

Image Resizer for Windows is a utility that lets you resize one or more selected image files directly from Windows Explorer by right-clicking. It was created as...

Free Open Source Windows Windows Explorer
Windows Explorer extension Add a feature

16 Like
Phatch

Phatch = Photo & Batch! Phatch is a simple to use cross-platform GUI Photo Batch Processor which handles all popular image formats and can duplicate (sub)folder...

Free Open Source Mac Linux
Batch rename files Batch processing Drag n drop Watermark images Add a feature

27 Like
PhotoBulk

PhotoBulk is easy-to-use bulk image editor that lets you add text/image watermark, resize, and optimize hundreds and thousands of images or photos in just one click. ...

Commercial $ $ $ Mac
Batch processing Drag n drop Watermark images Image Preview Add a feature

16 Like
Converseen

Converseen is a free cross-platform batch image processor for Windows and Linux that allows you to convert, resize, rotate and flip an infinite number of images with a...
- Warning Installation without activation key works showing different dangerous 3rd party softwares (bloatware, spyware, etc.). Avast Antivirus detected at least 3 different kind of viruses (or potentially viruses/dangerous software).
Free Open Source Windows Linux
Batch conversion Support for Batch Mode Add a feature

10 Like
PngOptimizer

PngOptimizer compresses graphics files and removes extra, unnecessary data without affecting quality. It will update PNG files or converting BMP, GIF or TGA files to the...

Free Open Source Windows Linux PortableApps.com
Portable Add a feature

16 Like
JPEG Archive

Utilities for archiving photos for saving to long term storage or serving over the web. The goals are: use a common, well supported format (JPEG), minimize storage space...

Free Open Source Mac Windows Linux BSD
No features added Add a feature

4 Like
Ralpha Image Resizer

Ralpha Image Resizer is a lightweight and portable program that can perform image operations in batch mode, such as resizing and applying filters.

Free Windows
Batch conversion Batch processing Drag n drop Watermark images Add a feature

4 Like
FCorp Imaging

Imaging is a Collection of Image Related Tools (Image Viewer, Image Converter, Image Resizer, Image Optimizer, etc). Features : 1. Color Picker 2. Duplicate Image...
- Discontinued The program is no longer developed. Last version, released in July 2016, can be still bought from the official website.
Commercial Windows
Portable Capture Screen / Take screenshots Add a feature

15 Like
ImBatch

ImBatch is a batch image processor with a nice graphical user interface. It will allow you to edit multiple image files at the click of a button by using scripts. The...

Free Personal Windows
Batch processing Batch conversion Batch Editing Scriptable Add a feature

10 Like