Workaround for ChatGPT Project Migration Gap: Export Scripts and Prompts

A developer has published a workaround for a specific limitation when migrating from ChatGPT to Claude: ChatGPT's data export doesn't include which project each conversation belongs to. The project membership field is absent from the exported JSON.

The Problem and Core Workaround

The source states that after trying to script around the missing data, the developer concluded the project tags simply aren't in the export. The export does contain full message trees, timestamps, and file attachments.

The workaround involves two main steps:

1. Capture conversation titles directly from the ChatGPT interface before losing access.
2. Use those captured titles to extract the matching conversations from the export JSON.

Available Tools

The developer has made the following resources available for free on GitHub, with no dependencies beyond the Python standard library:

• A merge script for combining multiple export JSON files.
• An extraction script that reconstructs conversations in chronological order from the message tree.
• A Claude prompt that turns screenshots of the ChatGPT interface into a clean titles file.
• A Claude prompt that generates a structured project summary ready for upload to a new Claude project.

The GitHub repository is at https://github.com/sarabura/aiprojectmigrate.

A full explanation of the approach is available in a Medium article: https://medium.com/p/4f91e95866da.

The developer notes they are happy to answer questions about the ChatGPT export structure or the migration process.