Ralpha Image Resizer is described as 'Lightweight and portable program that can perform image operations in batch mode, such as resizing and applying filters' and is a Image Optimizer in the photos & graphics category. There are more than 50 alternatives to Ralpha Image Resizer for a variety of platforms, including Windows, Mac, Web-based, Linux and Android apps. The best Ralpha Image Resizer alternative is Image Toolbox, which is both free and Open Source. Other great apps like Ralpha Image Resizer are Caesium Image Compressor, ImageOptim, OptiImage and RIOT - Radical Image Optimization Tool.
Versatile image editing app with cropping, filters, quality and format options, EXIF metadata editing, PDF conversion, background removal, batch processing and color picking, all in an open-source package for Android with a clean interface and no in-app ads.
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 multiple image processing at the same time, everyone will be able to reach the best result.
ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).
Optimize PNG, JPEG, WebP, and SVG images efficiently with flexible lossless and lossy compression modes, metadata control, and safe mode to avoid data loss, using tools like oxipng, jpegoptim, scour, and cwebp, enhancing image storage and load efficiency.
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 choosing the right parameters are the key factors of smaller files.
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 mouse click.
Switcheroo is designed to give you a simple, quick, and easy-to-use tool to convert and manipulate your images in whatever way you like. It is built on top of the most advanced image editing libraries, ImageMagick.
Image Normalizer is a cross-platform command-line batch-processing tool that resizes and compresses images, transforming each image by:
SnapScaler is a privacy-first batch image processing tool designed for photographers, content creators, and e-commerce sellers.
Batch process photos with resizing, cropping, color adjustments, text or watermark overlays, preview changes before saving, automate renaming with custom patterns, support for major formats, folder structures, preset settings, and drag-and-drop management.
Create email-friendly images, resize in batches, convert formats, and compress using high-quality filters. Integrated in Windows Explorer, it offers high-res settings, watermarking, a profiles library, PDF creation, and supports devices like iPad and iPhone.
MAZANOKE is a simple image compressor and converter that runs entirely in your browser. No external uploads, works offline as a web app, and is powered by Browser Image Compression.
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