imgix VS Pingo

The Unsplash Image API enables limitless API requests, providing developers with the freedom to incorporate images into their apps without speed or quota restrictions. Leveraging Imgix, a sophisticated image processing service, it allows real-time modification of image dimensions and quality directly via URL parameters, facilitating client-side image transformations without extra API calls. - Source: dev.to / 5 months ago

I'm not sure if you have budget for this but companies like https://imgix.com/ and https://supabase.com/docs/guides/storage/serving/image-transformations let you do image transforms on the fly through url query params. Most of them can resize, crop, compress, and transform to webp. Source: 5 months ago

I know that imgix.com provides an API for image manipulations. There may be others. Source: about 1 year ago

I use ImgIX for a long time now. Very satisfied. Https://imgix.com. Source: over 1 year ago

I would highly recommend using Imgix as another image CDN. The free tier is insanely generous. Source: over 1 year ago

I've tried a few, the best one was pingo (https://css-ig.net/pingo). Pingo -s9 gives better results than oxipng with Zopfli, while being usually two order of magnitudes faster. It's also faster than "regular" oxipng while being better. I can usually shave of 15%/20% of the size of png files I encounter. One thing I didn't check is that you might pay that in decoding time, I've never seen anybody talking about that... - Source: Hacker News / almost 2 years ago

Pinga, GUI for Pingo (https://css-ig.net/pingo) for lossless photo compression while keeping the metadata. Source: almost 3 years ago