CharSet Studio
Create, Edit and Export Character Sets for Retro Computers
Create custom character sets for classic computers with CharSet Studio. Designed for retro computing enthusiasts, emulator developers and homebrew programmers, CharSet Studio makes it easy to create, edit and export 8×8 character ROMs on macOS.
Import existing ROM images, edit characters using the built-in pixel editor, and instantly generate Swift, C or Commodore BASIC source code for your own projects.
Save complete binary ROM files for use with emulators, hardware projects and ROM programmers, making it simple to preserve or customise classic character sets.
Whether you're building a Commodore 64 emulator, designing a new font, creating PETSCII artwork or experimenting with retro software development, CharSet Studio provides a fast, native macOS workflow for creating character ROMs.
Screenshots
Features
- Create and edit 8×8 character sets
- Import existing binary character ROMs
- Generate Swift source code
- Generate C source code
- Generate Commodore BASIC DATA statements
- Save binary ROM files for emulators and ROM programmers
- Copy generated source directly to the clipboard
- Fast native macOS application
Export Formats
CharSet Studio can generate source code in multiple formats, making it easy to integrate custom character sets into your retro computing projects.
- Swift arrays
- C arrays
- Commodore BASIC DATA statements
- Binary ROM images (.bin)
Support
Questions, bug reports, feature requests, or feedback are always welcome. If you need assistance using CharSet Studio or would like to suggest a new feature, please don't hesitate to get in touch.
Privacy Policy
CharSet Studio is designed with privacy and simplicity in mind.
- No advertising
- No tracking
- No third-party analytics
- No data collection
All character ROMs and generated source code are processed entirely on your Mac. Nothing is uploaded, shared, or transmitted externally.
The app may request access to ROM files that you choose to open or save. This access is used solely to load and save your character ROMs.
CharSet Studio does not collect, store, or share any personal information.