100% client-side — your data never leaves your browser
ChatPortBring your OpenAI
history to Claude
Upload your OpenAI data export and get clean, organized files ready to import as Claude Project Knowledge. Every conversation preserved.
How it works
Export from OpenAI
Settings → Data Controls → Export Data. You’ll receive a ZIP file via email.
Upload your ZIP here — free
We parse everything right in your browser. Nothing is uploaded to any server. No account needed.
Preview your projects
See all your projects with message counts. Preview conversations to make sure everything looks right.
Download & import to Claude
Get organized markdown files per project, ready to upload as Claude Project Knowledge. $4.99 to download.
Your privacy is the whole point
Nothing leaves your browser
All ZIP parsing and conversion runs locally in JavaScript. Zero server uploads.
No accounts, no tracking
Upload and preview for free. Pay only when you want to download. No sign-up required.
Open about our code
You can inspect network requests in DevTools to verify nothing is sent.
Free to upload and preview. $4.99 to download your exports.