When comparing Paint.NET vs Pyxel Edit, the Slant community recommends Pyxel Edit for most people. In the question“What are the best pixel art / sprite editors?” Pyxel Edit is ranked 6th while Paint.NET is ranked 9th. The most important reason people chose Pyxel Edit is:
Tiles can be animated within Pyxel Edit, with "onion skin" frame overlays to assist in making smooth frame transitions.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to learn and use
Unlike most photo editing software, Paint.NET is simple to learn and easy to use. This means less time is spent learning the in's and out's of Paint.NET and more time on photo editing. For those who only edit photos sporadically and don't have time to invest in learning complicated tools for editing, Paint.Net will suit your needs.
Pro Free software
There is no charge for this software; but donations are welcomed.
Pro Lightweight
Paint.net provides a streamlined but effective core tool set. Support for advanced and niche features is provided through modular plugins, allowing the user to install only what's needed.
Pro Actively developed
The project is active and being continually expanded and refined.
Pro Active and friendly community
The forums are filled with tutorials, as well as people who are friendly and eager to help.
Pro Plugins allow extra functionality
Plugins can be made by anyone in the community, and are offered for download on the forum. They extend the capabilities of Paint.NET to cover most tasks.
Pro HiDPI support
Paint.NET supports fully HiDPI displays, with no scaling problems.
Pro Supports animations
Tiles can be animated within Pyxel Edit, with "onion skin" frame overlays to assist in making smooth frame transitions.
Pro Intuitive UI
Pyxel Edit is widely acclaimed for its ease of use.
Pro Tileset extraction
Given an image and specified tile dimensions, Pyxel Edit will extract a tileset with no duplicate tiles. This mostly works for flat images though. If you feed Pyxel "finished maps" you will still get a lot of duplicates.
Pro Tilemap serialization support
Tile-based images (maps) built in Pyxel Edit can be serialized via XML or JSON for easy import elsewhere.
Pro Cheap compared to others
For only $9 (£6), this is one of the cheapest but also one of the best pixel editors out there.
Pro Live tile-update
Instantly see if your tiles are tileable and/or seamless and fix it easily.
Pro Indexed tiles can be used for reusing objects in animations
Cons
Con Only available on Windows
Paint.NET is only available on Windows.
Con No project-based interface
You can only edit a single image at a time in Paint.NET. For example, in other tools you can open 5 or a 100 images at the same time, and stack those windows in all directions.
Furthermore, when you are editing in Paint.NET you can only "view" a single image at a time, even though you can have multiple images open. This limits your zooming ability, as the image will go fullscreen quite quickly, and hide parts of it behind the floating toolbars which can not be embedded anywhere on the screen.
Con development has stopped -- developer has stated 8/20 that a new version will be released soon
Con Lacks some tools
Con No Linux version
There is no Linux version of the editor.
Con Free version lacks features
The free version of Pyxel Edit is an outdated beta. It does not receive updates.
Con Proprietary, closed-source software
This software does not respect your freedom.
Con Mac version is dependent on Adobe Air
The OSX version of the application requires Adobe Air to run.