Browser Extension for ChatGPT

Make Long
ChatGPT Chats
Usable Again

ChatGPT Message Compressor helps huge conversations load faster by rendering the newest messages and compressing older message history locally in your browser.

Get the Extension How it works
Firefox Chrome

3-day full trial: then upgrade once for lifetime unlimited compression on this browser.

Compress
Render
Local

Simple setup

Long-chat speed without a complicated workflow

Install it once, keep it enabled, and let the extension reduce the amount of old message history your browser has to render.

1

Install the extension

Add ChatGPT Message Compressor to Firefox or Chrome from your browser's extension store.

2

Open a long conversation

When ChatGPT loads a large conversation, the extension detects older messages before the page renders them all.

3

Render fewer messages

The newest messages stay visible while older messages are compressed out of the current page response.

4

Tune and unlock

Choose how many messages to render, use the full 3-day trial, then upgrade once for unlimited compression.

Features

Built for huge ChatGPT threads

Use long project, coding, writing, and support conversations without waiting on every old message to render again.

Compress older messages

Keeps recent conversation context available while reducing the old message payload your browser has to draw.

Adjust the render limit

Pick how many messages ChatGPT should render, from a compact recent view to a larger visible history.

Local-first behavior

Your conversation text is not sent to this website. The extension checks access, then compresses the page response in your browser.

Why it helps

A cleaner way to handle long ChatGPT conversations

Very long chats can become slow because the browser has to load and render a large message history every time you open the thread.

What does Message Compressor do?

It watches for ChatGPT conversation responses, keeps the newest messages in the active path, and trims older messages from the version your browser renders. The original conversation remains on ChatGPT.

Who is it for?

It is built for people who reuse the same ChatGPT threads for coding projects, writing drafts, research, support notes, or any workflow where the conversation eventually becomes too heavy to load comfortably.

How the browser-side compression works

The extension runs on ChatGPT pages, detects conversation API responses, and rewrites only the response your browser receives for rendering. It keeps the newest messages connected so the visible conversation still loads cleanly.

How to start using it

  1. Install ChatGPT Message Compressor in Firefox or Chrome.
  2. Open the extension popup and choose how many messages to render.
  3. Open a long ChatGPT conversation and let compression run automatically.
  4. Use the 3-day full trial, then purchase a lifetime license if you want unlimited compression.

Pricing

Try it free. Unlock once.

Start with the full 3-day trial. After that, one lifetime license unlocks unlimited compression on this browser.

Lifetime unlock
$ 5.99

One-time payment after the 3-day trial — tied to your browser install

  • Full 3-day trial before paying
  • Unlimited compression after unlock
  • Adjustable message render limit
  • Works on Firefox and Chrome
  • Instant activation via license key
  • Secure checkout through Stripe

Already have a license? Download on Firefox or Chrome.

Secure payment via Stripe  ·  Instant delivery  ·  No account needed on this site

FAQ

Common questions

It compresses the older message history that ChatGPT would otherwise render in a long conversation. The newest messages stay visible based on the render limit you choose in the extension popup.
No. It changes the conversation response your browser renders for that page load. Your original conversation remains on ChatGPT, and you can disable the extension or raise the render limit when you need more history visible.
No chat content is sent to this site's API. The backend is used for trial, checkout, and license verification. Compression runs inside your browser on the ChatGPT page.
Firefox and Chrome are both supported. Each license is tied to a specific browser installation, so one purchase unlocks one browser install.
Compression stays fully available during the trial. When the trial ends, the extension shows an upgrade button and unlocks unlimited compression after the one-time purchase.
Your license key and recovery key are shown after purchase. Save both. The recovery key helps rebind the license if extension storage is lost or the browser install changes.