The best alternatives to Pingo are Realmac Software, Piio, and Crunch. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— The most accurate API for conversational speech-to-text
Crunch is a free, open source macOS GUI application that is built on pngquant and zopflipng PNG image optimization. It uses a lossy approach to PNG image optimization. The tool is available through Homebrew as a native macOS application. `$ brew cask install crunch` Image examples + compression ratio analysis available on the Github repository README. MIT license.
Optimage is an all-in-one image optimization tool that provides the highest compression ratio at consistent visual quality. It can automatically resize, convert and compress over 20 common image and video formats.
Smaller is a powerful HTML, CSS and JavaScript compressor on OS X which also has the ability to combine several files into one. Compress your files and make your websites load faster.
imgix is the leading platform for end-to-end image processing. With robust APIs, SDKs, and integrations, imgix empowers developers to optimize, transform, manage, and deliver images and videos at scale through simple URL parameters. With 100+ image operations, you can achieve responsive design for any device, browser, or art direction. You can start with our free plan or choose from our flexible plans that scale with you.
Resize, crop, optimize your images or add a watermark to your photos online. Process all your images in a batch and download processed files in a single ZIP.
Lepto is an automated image Editor, Optimizer, and Analyzer via CLI and a web interface. This tool is intended for developers who want to produce performant websites with ease.