Based on our record, LibreSprite should be more popular than iConvert Icons. It has been mentiond 3 times 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
LibreSprite is a nice free one that's forked from Aseprite. Source: over 1 year ago
LibreSprite is an older version (a fork) that has downloads. Source: almost 2 years ago
I have also seen Aseprite being recommended. It looks nice and I'm sure it works well, but it is not open source unfortunately. There is an open source alternative called LibreSprite, which seems to mimic Aseprite quite closely. Source: over 2 years ago
Img2icns - Image2icon provides the fastest way to customize your icons, easily and free.
Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
Faviconer - Faviconer.com, or favicon generator, is online tool for creating favicon.
Piskel - Piskel is a website where designers online create sprites or pixel art.
ConvertICO.org - Create icons from png, jpg or bmp images easily.
Grafx2 - GrafX2 is a bitmap paint program inspired by the Amiga programs Deluxe Paint and Brilliance.