ChatGPT freezes on long chats.
We fixed it.
ChatGPT loads every single message into your browser at once. On long chats, the tab crashes. We intercept the data before React renders — making it up to 932x faster.
★★★★★ 6 reviews on Chrome Store · $7.99 one-time for PRO
Why ChatGPT freezes on long conversations
Even 500 messages is enough to cause lag and jitter on most machines.
ChatGPT renders all 1865 messages as live DOM elements at once. Tab crashes. Aw Snap. You refresh. It crashes again.
Intercepts fetch before React sees data. Browser renders 2 messages instead of 1865. Smooth every time. Full history never deleted.
How it works
INTERCEPT
Hooks fetch request before React
TRIM
Trims JSON to recent messages only, stored locally
RUN FAST
React renders 2 not 1865, load older messages anytime
Everything you need, at a glance
- Live speed multiplier (not an estimate — based on your actual chat)
- Stats at a glance (Speed / Showing / Saved % in the popup)
- 100% local (no tracking, no uploads)
- Full history preserved (load older messages any time)
vs LightSession
Speed Modes
Safe
Light trim
Smart
Recommended
Aggressive
Deep trim
Ultra
Up to 932x
★★★★★ 6 reviews. All 5 stars.
"This is essential for anyone using ChatGPT for anything of consequence. Any chat that goes on for a reasonable length will greatly benefit from this. It will pay for itself by saving you time on the first day. You can't beat the price."
Doug Rogers
7 Apr 2026
"I have a lot of long coding chats with GPT. Without this extension the chats become very laggy. This extension on Ultra mode fixes the lag so I can just keep going without GPT losing track. Easy purchase to increase productivity."
Jon
4 Apr 2026
"This extension can be a lifesaver. It speeds up long chats tremendously. I bought the Pro version (one-time payment) and this saves me a ton of time. I also had to troubleshoot an issue and the developer was very responsive and helpful."
Lucas Benigni
2 Apr 2026
"Completely solved my problem of long code-heavy threads becoming unusably slow or fully unresponsive. Lightweight and effective. Highly recommend for anyone having lag issues with ChatGPT."
Fractal Hollow Games
25 Mar 2026
"This extension completely solved that problem instantly, meaning I no longer have to go through the rigmarole of changing to a new chat. This has hugely increased my productivity."
Dylan Billson
26 Mar 2026
"Definitely improves lag in long coding sessions!"
Robert Harris
29 Mar 2026
Pricing
PRO
- Unlimited optimizations
- All 4 modes incl Ultra
- Freeze Shield
- Unlimited load-backs
- Quiet Mode
- All chat lengths