Apps similar to RIOT - Radical Image Optimization Tool include Caesium Image Compressor, which is free and open source. Other options are XnConvert, FileOptimizer, ImageOptim and Dinky. Image Optimizers like RIOT - Radical Image Optimization Tool are a crowded field, with more than 100 alternatives for Windows, Mac, the web, Linux and Android.
PhotoResize is a simple tool for very fast batch resizing of photos and pictures in JPEG format. Beyond simple options however, Picture Resizer also contains support for seam-carving (changing size while preserving content), image sharpening, metadata, and other options.
Simple local image converter for Windows and Linux, built to optimize images into WebP and AVIF without upload or download steps.
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Compress hundreds of images in seconds. Everything stays on your computer. No uploads, no accounts, no subscription.
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PixTrim is a simple online tool to resize, crop, compress, convert, flip, and rotate images in popular formats like JPG, PNG, WebP, AVIF, and HEIC — all for free and right in your browser.
ImageSplitter is a Swiss army knife solution for your simple image processing. When it comes to cropping, resizing, converting or splitting images — ImageSplitter is your best companion.
ETK Image Compressor Pro is a fast, lightweight Windows app that drastically reduces image file sizes while keeping excellent visual quality. Supports adjustable quality for WebP,PNG, TGA, EXR, JPEG, batch compression, 8K images, and works fully offline.
jPDFOptimizer is a Java PDF library SDK used to optimize and reduce the size of PDF documents.
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Free native macOS image compressor for Apple Silicon. Drop PNG, JPEG, GIF, SVG, WebP, AVIF or HEIC files onto the window and get smaller copies beside the originals.
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Free browser tool for compressing, converting, and resizing bulk JPEG, PNG, WebP, and AVIF images entirely locally with WebAssembly, offering fast, private, unlimited processing, multi-core support, offline use, and ZIP export that keeps folder structure.
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Fast, 100% offline, privacy-first image compressor and HEIC/WebP converter running locally in your browser via WebAssembly.
Modernize your WordPress media library with high-performance WebP/AVIF conversion, AI-powered auto-tagging, and zero-load cloud optimization.
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