The short version
- ThreadPort carries the full conversation into another assistant, wrapped in a prompt so it can pick up from there. Its developer says it works locally, in your browser.
- Uncook's Handoff writes a short prompt from the conversation, for the AI you're moving to: the goal, what's decided, the rules you set and where you stopped. It also does other things with your chats: summarize, merge, make a memo and export.
If you want to move short chats quickly, with a tool whose developer says nothing leaves your browser, ThreadPort is a good fit. If your chats are long, or you want more than a move, Uncook is built for that.
How each one moves a chat
ThreadPort, according to its Chrome Web Store listing, takes the transcript of the open chat, wraps it in a handoff prompt and opens it in the assistant you pick, among ChatGPT, Claude, Gemini, Perplexity and Mistral. Its developer says it uses no servers and no accounts.
Uncook reads the open chat with its extension, sends it to Uncook to be processed, and gives you back a short prompt written from it. You copy it, or click Continue in the AI you chose to open a new chat, with the prompt in it on sites where you've allowed Uncook, or copied for you to paste.
The difference matters most on long chats. A full transcript carries everything, including drafts you replaced and ideas you dropped. When a chat is long enough to have hit its limit, a full transcript may not fit well in the new chat either. A handoff is shorter by design: it keeps the conclusions and leaves the rest.
Neither one moves your files.
Both work from the text of the chat. Files you uploaded, images and an assistant's memory of you stay where they are.
Side by side
| ThreadPort | Uncook | |
|---|---|---|
| What you get | The full transcript, wrapped in a prompt | A short Handoff prompt for another AI: goal, decisions, rules, where you stopped |
| AIs | ChatGPT, Claude, Gemini, Perplexity, Mistral | Reads ChatGPT, Claude, Gemini, Copilot, Perplexity, Mistral Vibe, Gemini Notebook, Google AI Studio |
| Where it runs | In your browser; its developer says no servers | Reads in your browser; the chat is sent to Uncook to write the prompt (see below) |
| Other tools | Markdown export | Summarize, Merge, Memo, AI Profile, Export to PDF, Markdown or text |
| Price (see dated sources below) | Free tier and paid plans, per its Store listing | Handoff uses tasks. AI Profile is free with an account, within its own limits, with no task deduction. Summarize on one chat is free within its own limits. Export is free, with no limit. See Pricing (8 November 2026). |
ThreadPort facts: its Chrome Web Store listing (version 0.3.4, updated 5 October 2026) and its developer's site, read on 29 October 2026.
Prices and features change: check each tool's page before you decide.
When to pick which
Pick ThreadPort if you mostly move short or medium chats between ChatGPT, Claude and Gemini, you want the whole conversation carried over as it is, and you'd rather use a tool whose developer says nothing leaves your browser.
Pick Uncook if your chats get long and start to drift, you want the next AI to start from the decisions rather than the whole history, or you also need to summarize, merge several chats, make a memo or save a chat as PDF.
You can also use both.
Questions people ask
Is Uncook a copy of ThreadPort? No. They solve a nearby problem in different ways: ThreadPort carries the transcript, Uncook's Handoff writes a short prompt from it.
Which one is more private? ThreadPort's developer says it uses no servers. Uncook sends the chat to its servers to write the prompt; the box above says what we keep and for how long.
Can I try both for free? Both have a free way to start. Check each one's page for the current limits.
Start fresh,
without starting over.
Add to Chrome
We don't keep the conversations you bring. When you click Send to Uncook in the extension window, the extension sends the chat from your tab to our servers, encrypted, for up to 30 minutes, and we delete it as soon as your Uncook page opens it. What Uncook makes from it is kept as a task, for as long as our Privacy page says. Neither your chats nor your tasks are used to train AI models.