Nasu provides a downloadable spritesheet editor for creating 8-bit fonts and sprites, with builds listed for desktop and mobile platforms.

hundredrabbits.itch.io/nasu
Nasu homepage screenshot

About Nasu

Nasu is a spritesheet editor for creating 8-bit fonts and sprites. It was built during production of the Famicom version of the card game donsol.

Nasu is distributed as a Uxn rom for Windows, macOS, Linux, and Android, and requires the Uxn emulator to run.

Key features

  • Create 8-bit fonts
  • Create 8-bit sprites
  • Edit spritesheets as a Uxn rom
Best for: Best for people making 8-bit fonts and sprites for Uxn-based work.
Good for
  • Available for Windows, macOS, Linux, and Android
  • Distributed as an 8.5 kB Uxn rom
Watch out for
  • Requires the Uxn emulator to run

Nasu at a glance

Type
Online tool
Pricing
Not confirmed. Check the site
Platforms
Android, Linux, macOS, Web, Windows
Open source
Not stated
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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Nasu FAQ

What is needed to run Nasu?
The Uxn emulator, with an installation guide referenced on the page.
What was Nasu originally built for?
Production of the Famicom version of the card game donsol.
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