Caesium Image Compressor is described as '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' and is a popular Image Optimizer in the photos & graphics category. There are more than 100 alternatives to Caesium Image Compressor for a variety of platforms, including Windows, Web-based, Mac, Linux and Android apps. The best Caesium Image Compressor alternative is Image Toolbox, which is both free and Open Source. Other great apps like Caesium Image Compressor are ImageOptim, Dinky, OptiImage and FileOptimizer.
Supports cropping, filter use, EXIF editing, and background removal with AI, PDF conversion and editing, batch processing, OCR, encryption, custom filters, barcode scanning, SVG tracing, color selection, histogram, collage, and diverse format export.
Russia
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).
Poland
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Free macOS tool for compressing images, videos, and PDFs—just drag and drop to support numerous formats, flatten or rewrite PDFs, remove metadata, set size targets, preserve quality, and save compressed files alongside originals without internet required.
United States
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.
GermanyEU
FileOptimizer is a lossless file size optimizer supporting AIR, APK, APNG APPX, BMP, CBZ, DOCX, DLL, EPUB, EXE, GIF, GZ, ICO, JAR, JPEG, MNG, MP3, MPP, PNG, PPTX, ODT, OGG, OGV, PDF, PUB, SCR, SWF, TIF, VSD, WEBP, XAP, XLSX, and ZIP file formats among others.
SpainEU
Compress and compare images with different codecs, right in your browser.
United States
Desktop app for offline batch compression and conversion supporting over 100 formats, including images, videos, GIFs, and PDFs. Features drag-and-drop, reusable presets, folder monitoring, preview, trimming, clipboard compression, context menu, shortcuts, and automation.
United Kingdom
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.
RomaniaEU
Compress images, videos, and PDFs directly on your Mac with local batch processing, no internet required, and full privacy. Features drag-and-drop workflow, smart quality preservation, on-device optimization, and subscription options for premium tools.
MaltaEU
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.
United States
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.
ItalyEU
Using advanced lossy compression, TinyPNG reduces PNG file sizes by 50-80%, preserving full transparency and minimizing quality loss. Ideal for web designers, it increases website speed, saves bandwidth, and offers tools like a Photoshop plugin and API for seamless integration.
NetherlandsEU
