a preview of the image improved thanks to "letsenhance.io". Source: 7 months ago

Enhance. io- the AI-powered image enhancer that increases resolution without losing quality. Customize dimensions, improve texture, tone, color, and clarity effortlessly. Ideal for WordPress eCommerce sites, real estate, and websites with multiple similar images. Save time with automated presets and clean up images using Smart Enhance for crystal-clear visuals. - Source: dev.to / 10 months ago

Https://letsenhance.io (For $9 you can get 100 credits to make 100 thumbnails enhanced to HD Quality and you can use the image generators). Source: 12 months ago

Https://letsenhance.io isn’t free but for $9 you can get 100 credits to make 100 thumbnails HD. Source: 12 months ago

Then upscale the image - https://letsenhance.io/. Source: almost 1 year ago

I have had good experiences with https://github.com/shssoichiro/oxipng . Although, I suspect this wouldn't give you nearly enough space savings as jpg. Source: about 1 year ago

If you do want the file as a PNG (for transparency and a common format that's well supported), but don't want it so huge, consider something like oxipng. https://github.com/shssoichiro/oxipng. Source: over 1 year ago

Oxipng, pngquant and svgcleaner — optimizing images. Source: over 1 year ago

I wonder how `pngcrush` compares to `oxipng` (https://github.com/shssoichiro/oxipng). Personally, I use `oxipng` if I want lossless compression. However, most of the time, I use `pngquant` instead, since it gives significant size reduction even at `99%` (I can't even distinguish between the original and reduced image).

    pngquant --quality=99 --ext=.png --force file.png

. - Source: Hacker News / almost 2 years ago

Depending on your workflow it might make sense to export PNGs directly from Affinity and then reduce their size with a utility like Oxipng, which uses all your cores to find the best algorithm for each particular image. Source: about 2 years ago