Smooth GPT

Tracking since Apr 23, 2026.

Changelog

• Apr 28, 2026
  description

  ChatGPT running slow? Smooth GPT kills the lag, stutter, and RAM drain in long conversations. Instant. Automatic.
  
  You're 80 messages deep into a brilliant conversation and ChatGPT has turned into a slideshow. Scrolling stutters. Typing lags. Your tab is eating 2 GB of RAM for breakfast.
  
  Smooth GPT fixes that. Install it, forget about it, enjoy a fast ChatGPT again.
  
  No setup. No buttons. No nonsense.
  
  ── WHAT'S ACTUALLY HAPPENING ──
  
  ChatGPT doesn't throw away old messages — it loads all 300 of them, renders every single one, and makes your browser suffer for it. Smooth GPT intercepts that before React gets anywhere near it.
  
  ▸ API trim — the big one
    Strips old messages from the conversation payload before they ever touch the DOM. A 280-message chat goes from ~27,000 DOM nodes down to ~4,000. Typing lag: gone. Scroll stutter: gone. You control how many messages to keep (default: 80).
  
  ▸ Code block deflation
    Got a chat full of code? Each syntax-highlighted block secretly contains hundreds of invisible <span> elements. Smooth GPT collapses off-screen code blocks to plain text and quietly rebuilds them as you scroll. DOM node count drops 60–90% in code-heavy conversations.
  
  ▸ Content-visibility + CSS containment
    Tells the browser to skip rendering off-screen messages entirely, and wraps each message so that typing in the input box can't cause a full-page reflow. The typing-lag fix that should've been in ChatGPT from day one.
  
  ▸ Aggressive pruning (optional, off by default)
    Full nuclear option. Physically removes off-screen messages from the DOM and replaces them with invisible placeholders. Flip it on if you're running a 500-message epic.
  
  ── PRIVACY — THE SHORT VERSION ──
  
  Zero data collected. Ever. Everything runs locally in your browser. No servers, no accounts, no tracking. Your conversations stay yours.
  
  ── PERMISSIONS — WHY WE NEED THEM ──
  
  • chatgpt.com & chat.openai.com — to actually do the work on ChatGPT pages.
  • scripting & tabs — to show live stats in the popup (DOM node count, messages trimmed, etc.).
  
  That's it. We don't touch any other site.
  
  ── OPEN SOURCE ──
  
  Built by Kozilabs. Say hi at kozilabs.lt

  ChatGPT running slow? Smooth GPT kills the lag, stutter, and RAM drain in long conversations. Instant. Automatic.
  
  You're 80 messages deep into a brilliant conversation and ChatGPT has turned into a slideshow. Scrolling stutters. Typing lags. Your tab is eating 2 GB of RAM for breakfast.
  
  Smooth GPT fixes that. Install it, forget about it, enjoy a fast ChatGPT again.
  
  No setup. No buttons. No nonsense.
  
  ── WHAT'S ACTUALLY HAPPENING ──
  
  ChatGPT doesn't throw away old messages — it loads all 300 of them, renders every single one, and makes your browser suffer for it. Smooth GPT intercepts that before React gets anywhere near it.
  
  ▸ API trim — the big one
    Strips old messages from the conversation payload before they ever touch the DOM. A 280-message chat goes from ~27,000 DOM nodes down to ~4,000. Typing lag: gone. Scroll stutter: gone. You control how many messages to keep (default: 80).
  
  ▸ Code block deflation
    Got a chat full of code? Each syntax-highlighted block secretly contains hundreds of invisible <span> elements. Smooth GPT collapses off-screen code blocks to plain text and quietly rebuilds them as you scroll. DOM node count drops 60–90% in code-heavy conversations.
  
  ▸ Content-visibility + CSS containment
    Tells the browser to skip rendering off-screen messages entirely, and wraps each message so that typing in the input box can't cause a full-page reflow. The typing-lag fix that should've been in ChatGPT from day one.
  
  ▸ Aggressive pruning (optional, off by default)
    Full nuclear option. Physically removes off-screen messages from the DOM and replaces them with invisible placeholders. Flip it on if you're running a 500-message epic.
  
  ── PRIVACY — THE SHORT VERSION ──
  
  Zero data collected. Ever. Everything runs locally in your browser. No servers, no accounts, no tracking. Your conversations stay yours.
  
  ── PERMISSIONS — WHY WE NEED THEM ──
  
  • chatgpt.com & chat.openai.com — to actually do the work on ChatGPT pages.
  • scripting & tabs — to show live stats in the popup (DOM node count, messages trimmed, etc.).
  
  That's it. We don't touch any other site.
  
  ── WHO DID THIS? ──
  
  Built by Kozilabs. Say hi at kozilabs.lt

Permissions & access

Permissions

scriptingtabs

Host access

https://chatgpt.com/*, https://chat.openai.com/*

Screenshots