Based on our record, iConvert Icons seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This will also work and let you create Mac icns files for the same purpose. Source: about 3 years ago
Img2icns - Image2icon provides the fastest way to customize your icons, easily and free.
Sketch Extensions - An official collection of Sketch extensions & plugins
Faviconer - Faviconer.com, or favicon generator, is online tool for creating favicon.
Remake - A way to make web apps with just HTML & CSS
ConvertIcon! - Converticon is a simple icon utility.
Sketch Repo - Collection of resources for anyone who uses Sketch