OptiPNG is described as 'Command-line PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections' and is a Image Optimizer in the os & utilities category. There are more than 50 alternatives to OptiPNG for a variety of platforms, including Windows, Mac, Linux, Web-based and SaaS apps. The best OptiPNG alternative is Dinky, which is both free and Open Source. Other great apps like OptiPNG are GetCompress, ImageOptim, TinyFast and OptiImage.
A powerful online image compressor tool. Users can compress unlimited images at an instant. Currently supports 1GB of file compression at an instant. IMGCentury.com supports JPG, BMP, WEBP, ICO, SVG, AVIF, PNG, JFIF and many more.
optimus.io offers lossless compression of images available with a WordPress plugin and via API.
Switzerland
Don’t spend another second worrying about compressing your images. Install Imgbot into your GitHub projects, and focus on your application.
Edit one or several images in a few clics. Massive downscale, resize or crop a collection of images quickly.
France
EU
With JPEG Resampler you are able to change the resolution and size of JPEG images of a directory in one go and move them into another folder.
CzechiaEU
Crunch - Insane(ly slow but wicked good) PNG image optimization. It combines selective bit depth, color type, and color palette reduction with zopfli DEFLATE compression algorithm encoding using embedded versions of the pngquant and zopflipng PNG optimization tools.
Squeezer is a PNG optimizer for Mac OSX that recompresses image files to a smaller size, without losing any information.
Switzerland
Optimize pictures without quality lossless. With Black Bird Image Optimize - you can reduce the size of your photos several times without quality loss!.
Ukraine
Fast, 100% offline, privacy-first image compressor and HEIC/WebP converter running locally in your browser via WebAssembly.
In this fast-paced digital era, vast numbers of photos and images often saturate storage spaces. Zipic, an efficient image compression tool, quickly addresses the issue of insufficient storage. Whether reducing the size of social media images or simplifying document images...
A free web app providing 200+ online tools for developers, including JSON formatters, PDF mergers, code converters, data generators, and more—no signup required.
India