Continue your AI chats indefinitely with real memory and clarity.

ThreadStack organises your scattered AI threads into linked, searchable projects you can continue forever.

Desktop app for power users of ChatGPT, Claude, Gemini and more.

The problem with long AI chats

AI chats are amazing at the start. But then they start to drift, slow down, and forget things. History is locked inside each provider, and there’s no clean way to link, organize and continue a project across sessions.

Long threads eventually break

  • Models forget earlier steps and constraints.
  • Responses drift off-topic or contradict past decisions.
  • Chats become slow, repetitive and noisy as context grows.

Your AI history is fragile and siloed

  • Exporting chats is unreliable or missing on many platforms.
  • History is stuck in separate UIs with poor search.
  • A single account issue can lose months of work.

What ThreadStack gives you

ThreadStack turns scattered AI chats into clean, linked, searchable projects you can continue indefinitely — with complete memory and clarity.

Link related chats into real projects

Group multiple threads from ChatGPT, Claude and Gemini into a single project. See the entire story at once instead of juggling dozens of disconnected chats.

Continue any chat indefinitely

Generate clean, token-aware context bundles for any chat — or an entire linked project — and drop them straight into your AI tool to pick up exactly where you left off.

Clean, readable conversation history

ThreadStack keeps both the raw transcript and a polished, cleaned version with fixed formatting, reduced filler, improved code blocks and consistent structure.

Powerful offline search

Instantly find code snippets, instructions, decisions and key insights across all your chats — even without an internet connection. Powered by fast local indexing.

Share chats as Markdown or PDF

Export cleaned or raw chats in beautiful, readable Markdown or PDF format. Perfect for handovers, reports, documentation, or collaborating with others.

Private, local-first archive

Your entire AI memory lives on your machine — offline, searchable, structured and under your control. No cloud storage, no tracking, no vendor lock-in.

Why not just use ChatGPT’s “Memory” feature?

Because it remembers your preferences, not your projects. ThreadStack is project memory, not preference memory.

ChatGPT Memory

  • Stores light preferences and general habits.
  • Doesn’t load past conversations into new chats.
  • Can’t preserve full project history or code iterations.
  • No offline archive, no export, no multi-LLM view.

ThreadStack

  • Keeps full transcripts, cleaned and structured.
  • Lets you continue any chat with complete context.
  • Works across ChatGPT, Claude, Gemini and more.
  • Stores everything locally, private and offline.

What’s coming next

Here’s what we’re working on to make your long-term AI workflows even smoother and more powerful.

PDF export improvements

Beautiful, styled PDF exports with better typography, page breaks, headers and optional cover pages. Turn any chat or project into a polished, shareable document.

DOCX & Google Docs export

Generate professional documents directly from your cleaned chats — perfectly formatted for editing, publishing or collaboration.

Smart redaction

Automatically remove sensitive details such as emails, names, API keys and identifiers before sharing. Manual blackout tools included for full control.

ChatGPT ZIP import

Import entire ChatGPT archives in one step. ThreadStack will auto-organise, clean and index them into projects you can explore and search instantly.

Deeper linking & project views

Advanced project timelines, breadcrumb navigation, drag-to-reorder chats, and richer context visualisation for complex multi-thread workflows.

Optional local LLM summaries

Run Layer 2 & Layer 3 summaries fully offline using a local model. Great for private workflows or large multi-chat projects.

Join the early access waitlist

Be the first to try ThreadStack when the MVP launches.