Alternatives to Ralpha Image Resizer 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 PNG Compression Add a feature

65 Like
Caesium

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

27 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

75 Like
- Warning Installer contains Open Candy adware and potentially more: https://www.virustotal.com/en/file/5c69ba60d82abbf73c6ac27a0cf39b054cb5a7cbc6fc8a6cb00d4daa6e069b73/analysis/
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

26 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
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

13 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
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 Add a feature

20 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...

Free Open Source Windows Linux
Batch conversion Support for Batch Mode Add a feature

9 Like
- 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).
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...

Commercial Windows
Portable Capture Screen / Take screenshots Add a feature

15 Like
- Discontinued The program is no longer developed. Last version, released in July 2016, can be still bought from the official website.
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
Free Image Convert and Resize

Free Image Convert and Resize is a compact yet powerful program for batch mode image processing. The program easily converts separate images as well as file folders...

Free Windows
Batch conversion Convert images to PDF Add a feature

7 Like
Light Image Resizer

Light Image Resizer, previously called VSO Image Resizer, is a shareware resize image software. With it you can create e-mail friendly versions of your images, load them...

Commercial Windows
Batch rename files Convert images to PDF Watermark images Add a feature

15 Like
Image Converter Plus

Image Converter Plus is a multifunctional conversion and resizing tool for Windows operating system. + Convert files in hundreds of image formats and dialects with...

Commercial Windows
Batch conversion Dropbox integration Convert images to PDF Watermark images ... Convert PDF to image Add a feature

7 Like
BIMP

With BIMP you can apply a set of manipulations to an entire group of images! It provides an easy to use interface and a lot of batch functions.

Free Open Source Mac Windows Linux GIMP
Batch conversion Batch Editing Batch rename files Batch image manipulation ... Support for Batch Mode Batch processing Color correction Add a feature

1 Like