Claudium - Claude Chat with ChatGPT Style Modern UI Light and Dark Theme

Claudium transforms the Claude chat experience on claude.ai by Anthropic, delivering a familiar and modern interface inspired by the look and feel of OpenAI’s ChatGPT. This extension seamlessly brings both sleek dark and crisp light themes, with rounded chat input areas and polished UI elements that mirror ChatGPT’s popular conversation layout. The result is an intuitive, consistent experience that bridges the gap between Claude and ChatGPT for smoother, more comfortable interaction.

Key features include:

• ChatGPT-inspired themes: A dark mode for comfortable chatting in low-light environments and a light mode for a bright, clean look in well-lit settings — switch seamlessly between both.

• Enhanced UI elements: Rounded input boxes, consistent padding, and refined button styles create a professional, distraction-free chat interface.

• Familiar design touches: Subtle but impactful tweaks like hover effects, border adjustments, and improved chat message layouts faithfully replicate ChatGPT’s recognizable aesthetics.

• Automatic style injection: Your chosen theme stays active across new tabs or after reloads without manual steps, thanks to seamless integration with Claude pages.