When comparing PikoPixel vs PixiEditor, the Slant community recommends PixiEditor for most people. In the question“What are the best pixel art / sprite editors?” PixiEditor is ranked 17th while PikoPixel is ranked 19th. The most important reason people chose PixiEditor is:
It's actively developed on GitHub under MIT license, and it's totally free.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Customizable canvas background
You can change the canvas background to a different texture and color, while you can also adjust the texture size.
Pro Free and open-source
It's actively developed on GitHub under MIT license, and it's totally free.
Pro Very easy to use
Pro Stylus support
It has decent stylus support, erasing and drawing
Pro Active development
Pro Multi-document editing
Interface is dockable and supports editing multiple documents at the same time, even side-to-side.
Pro Clean and readable interface
UX is very similar to popular editing tools like photoshop, so getting started is easy.
Pro Multi-document edititng
Interface is dockable and supports editing multiple documents at the same time, even side-to-side.
Cons
Con Not available on Windows
PikoPixel is only available for Mac and Linux.
Con A little buggy
It's still in early development stage, so there are some bugs.