For best results, open this app in Chrome, Firefox, or Safari.
SharedArrayBuffer support required for fontc WASM threading.
View the complete Python API documentation for the Font Object Model:
📖 Open API Documentation on GitHub
Enter your Anthropic API key to use the assistant:
Your API key is stored locally in your browser and never sent anywhere except to Anthropic's API.
Describe what you want to do with your font in your natural language. The assistant will generate Python code using the context library and run it.
Examples: "List all glyph names", "Make glyphs 10% wider", "Add 50 units to left sidebearings"
This shows how much browser memory the font editor is using.
A significant portion of memory is shared across all browser tabs running this app. This includes:
💡 To fully free memory, you must close ALL tabs with this app, then reopen in a fresh tab.