Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
8bitdash - Animated 8-bit browser home screens
Pixel Art Studio - A purpose-built drawing tool for pixel artists
PixaTool - Convert any image or video into pixel art 👾
Pixilart - A drawing app for delightfully retro pixel art
PulseBoy - Web-based musical sequencer which only uses 8bit sounds