LLMural

Customize backgrounds and fonts for your favorite LLMs. Currently supports ChatGPT, Gemini, and Claude with more on the way.

LLMural lets you personalize the look of your favorite AI chat platforms — ChatGPT (chatgpt.com), Google Gemini (gemini.google.com), and Claude (claude.ai). Coming soon to other platforms! Tired of looking at the same default fonts and colors? LLMural gives you full control over how your AI conversations look, making them easier to read and more enjoyable to interact with. 🎨 WHAT YOU CAN CUSTOMIZE • Background color — pick any color with full transparency support • Font family — choose from 32 fonts across Sans-Serif, Serif, Monospace, Handwriting, and more • Font size — set any size from 1 to 99px • Font color — full color picker with transparency support ✨ FEATURES • Works on ChatGPT, Gemini, and Claude • 6 recent colors remembered for quick access • Undo/Redo setting selections • Disable and re-enable without losing your settings • Google Fonts loaded automatically — no setup required • Zero impact on page performance 🔒 PRIVACY FIRST LLMural never reads your conversations, never collects personal data, and never sends anything to external servers. This will never change. All LLMural settings are stored locally using your browser's built-in storage — that's it. Works out of the box. No account required. No setup. Just install and start customizing. All features above are free and always will be!