Customize your AI Chat experience with adjustable chat and code block widths for enhanced readability and personalization.
Users
33
−3 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#127K
#106K among extensions
Version
3.1.1
updated 14 Oct 2026
Users
monthly, 3 years
Latest, 20 Oct 2026:33 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 years
Latest, 20 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About ChatFlex
ChatFlex
Transform your chat experience with the ultimate customisation tool. ChatFlex allows you to tailor your chat environment exactly to your liking, ensuring an optimal and more comfortable browsing and interaction experience. Whether you're coding, learning, or just chatting, make your chat sessions your own.
Features:
===== Customisable Chat Width =====
Adjust the width of the chat interface to match your screen size and personal preference.
===== Maximum Width Setting =====
Set a maximum width for the chat to avoid overly stretched texts on larger screens.
===== Adaptable Code Block Width =====
Specify how the width of code blocks should be handled. Choose between matching the width of your chat or keeping them aligned to the content width.
Supports ChatGPT, Claude, Gemini, GitHub Copilot (Web UI) and Microsoft Copilot!
Also available on Firefox:
https://addons.mozilla.org/en-US/firefox/addon/chatflex/
And Microsoft Edge:
https://microsoftedge.microsoft.com/addons/detail/chatflex/oicckedllcjcmkhonegnanciacbkclee
Support:
Have feedback or suggestions? Contact me at bradleywadsworth_dev@outlook.com.
Changelog:
v3.1.0
- Added Perplexity support
v3.0.0
- Added support for GitHub Copilot (Web UI) and Microsoft Copilot
- Moved to a schema based implementation that allows for fixes to be released without requiring an extension update.
v2.1.x
- Fix preferences not persisting
- Fix ChatGPT code block settings in wrong positions
- Fix ChatGPT code block 'chat' setting
- New ChatGPT URL
- Claude width fix
v2.1.0
- Settings page.
- Dark Mode!
- Fix ChatGPT following site update.
v2.0.1
- Fixed content script not getting loaded in certain scenarios.
v2.0.0
- Added support for Claude and Gemini.
v1.0.0
- ChatGPT support.