PixiEditor is a Universal Editor for all your 2D needs
A free & open-source 2D sprite editor, made with the Godot Engine
Tilf (Tiny Elf) is a free, simple yet powerful pixel art editor
A pixel art editor that supports animation and scripting
A fast, self-contained, highly customizable Aseprite-to-Unity importer
An aseprite-file importer for unity written in C#
An exceedingly easy-to-use pixel perfect orthographic camera script
A resolution independent pixel perfect camera for Unity
Open Source Pixel Editor
Pixel art tool
PNG Pixel editor