Restyle ChatGPT: colours, fonts, spacing and chat width. By Walnex Technologies. Not affiliated with OpenAI.
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#375K
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Version
1.4.0
updated 8 Oct 2026
About Walnex Restyle - ChatGPT Custom Themes and Styles
Make ChatGPT look the way you want. Walnex Restyle lets you change the colours, fonts, title, spacing and layout of chatgpt.com, and your settings apply instantly and stay across sessions.
WHAT YOU CAN CHANGE
• 18 ready-made colour palettes, plus your own accent, background, sidebar, message and text colours
• Typeface, text size and line height
• Chat column width, corner radius and message spacing
• Flat messages instead of bubbles
• Hide the sidebar or avatars for a calmer view
• Rename the corner wordmark on your own screen and add a small badge
• Optional glass header and lifted composer styling
• Optionally hide promotional offer buttons and the Chat/Work switcher in the header
• Your own CSS box for fine-tuning
PRIVATE BY DESIGN
• No data collection, no analytics, no accounts, no network requests
• Your settings are saved only in your browser profile
• Your conversations are never read, copied or sent anywhere
HOW TO USE
1. Install the extension and open chatgpt.com.
2. Click the Walnex Restyle icon in the toolbar.
3. Pick a palette or adjust the controls. Changes appear immediately.
Walnex Restyle is an independent product of Walnex Technologies. It is not affiliated with, endorsed by, or sponsored by OpenAI. "ChatGPT" is a trademark of OpenAI and is used only to describe the website this extension works with.