Alternatives to ImageSizer for all platforms with any license

IrfanView

Fast, compact image viewer, editor, converter and organizer designed to be simple but powerful.

Free Personal Windows PortableApps.com
Command Line support Cross-platform Lightweight Batch conversion ... Batch rename files Batch renaming Built-in editor Customizable EXIF Editing Extensible by Plugins/Extensions Image Combining Image Editing Image Navigation Convert images to PDF Intuitive Interface Lossless Compression Page labeling Photo effects Portable Skinnable Add a feature

854 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 processing Batch rename files Drag n drop Multiple languages ... Portable Add a feature

42 Like
ImageOptim

Reduces the file sizes of images without quality loss by removing bloated metadata.

Free Open Source Mac Web Software as a Service (SaaS)
Lossless quality Remove EXIF Data Lossless Compression Support for Multiple threads ... PNG Compression Add a feature

72 Like
Preview

Preview is a simple and elegant application by Apple for viewing and working with images and PDF documents. With a single click, Preview takes your PDF document full...

Free Mac
Built-in Image converter Image resizing Edit PDF Fill PDF Forms Add a feature

109 Like
XnConvert

XnConvert is an easy image converter for graphic files, photos and images available on Windows, MacOSX and Linux. It supports more than 400 file formats (jpeg, tiff...

Free Personal $ $ $ Mac Windows Linux
Batch processing Image Processing Watermark images Add a feature

49 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
Change image size Add a feature

83 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 Editing Image resizing Watermarking Add a feature

28 Like
TinyPNG

Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!.

Freemium $ $ $ Web Adobe Photoshop Wordpress
PNG Compression Add a feature

19 Like
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PNGGauntlet

-Combines PNGOUT, OptiPNG, and DeflOpt to create the smallest PNGs -No image quality is lost — only file size -Converts JPG, GIF, TIFF, and BMP files to PNG ...

Free Windows
Lossless Compression File Compression Compression Image Processing ... Works Offline PNG Compression Add a feature

30 Like
JPEGmini

JPEGmini is a patent-pending photo recompression technology, which significantly reduces the size of photographs without affecting their perceptual quality. The...

Commercial Mac Windows
Compression Reduce size Add a feature

21 Like