ChatExtender

Memory that carries across ChatGPT & Claude · macOS

Free Trial Buy · $30
ChatExtender
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SYNCED CONVERSATION
Main project
ChatGPT · 1,847 turns
1,847 messages. Eight months. One unbroken thread — every word saved on your Mac, scroll back anytime.
Where were we?
Mid-draft — you wanted the closing section tightened before tomorrow. Ready when you are.
Let's finish it.
+Ask anything↑
One workspace for ChatGPT and Claude. Every thread from both, in a single private app on your Mac — switch models, open a heavy thread, and keep going without losing your place.
ChatExtender
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SYNCED CONVERSATION
Main project
ChatGPT · 2,140 turns
Keep going — we're not close to done.
Picking up exactly where we left off.
This is the moment other AI chats slow down and start forgetting. This one doesn't — a fresh session opens with your full context carried over, automatically.
+Ask anything↑
Starting a new session for faster responses. Your full conversation history is preserved locally.
Context that never silently degrades. Long native chats quietly compact and forget as they grow. ChatExtender hands each new session a complete summary of everything before it — automatically, before anything is lost.
ChatExtender
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SYNCED CONVERSATION
Team update
Claude · today
You know the drill — draft the update.
Matching your saved style and the brief that came attached. Here's a first pass…
Zero re-explaining. What you save once rides along with every message — in ChatGPT and Claude.
📎 My writing style📎 project_brief.md
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Memory that travels with you. Save your facts, files, and configs once — ChatExtender attaches them to your messages in ChatGPT or Claude, so the model always has your project's context and you never re-explain it.
ChatExtender
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SYNCED CONVERSATION
Main project
ChatGPT · 1,847 turns
Search, not scrolling. ChatExtender checks every conversation at once — a detail from three weeks ago, forty threads deep, in about a second.
One sec — pulling up something from a few weeks back.
Take your time.
+Ask anything↑
Find any decision in seconds. Full-text search across all your threads in a provider — switch tabs to search the other — with every match highlighted, even one buried thousands of messages back.

Whether you're shipping a project over weeks or researching across dozens of threads, ChatExtender keeps the conversation going — your context never resets.

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One-time purchase · No account required · macOS 11+