Ownchats
ChatGPT & Claude to CSV
Turn your chat history into a spreadsheet: one row per message.
Drop your ChatGPT or Claude data export, choose which messages to keep, and download a CSV for Excel or Google Sheets. Your file is read in this tab and never uploaded.
Drop the ZIP from ChatGPT or Claude, or choose the conversations.json inside it.
Read locally. No account needed. ZIP or JSON, up to 256 MB. Don't have an export? How to get one.
| Chat | Role | Date | Text |
|---|
What's in the CSV
- platform: chatgpt or claude
- conversation_id, conversation_title
- conversation_created: ISO date and time
- message_index: position in the chat
- role: user or assistant
- message_time: when it was sent, if the export has it
- words: word count of the text
- text: the message as Markdown
UTF-8 with a byte-order mark, so Excel shows Chinese, emoji and accents correctly. Cells that start with = + - or @ get a leading apostrophe so spreadsheets don't run them as formulas.
Questions
Is my chat export private?
Yes. The page reads your file in your browser and never sends it anywhere; the only network request is an anonymous page-view count (no cookies). Closing the tab clears everything.
What is left out?
Reasoning and tool output, and messages outside the current branch of a conversation. Images and attachments appear as [image] or [file: name]; the export usually doesn't contain them.
Can I get one chat as Word or PDF?
This tool makes spreadsheets. To read or share a single conversation, use the free export viewer (Markdown or HTML), or Ownchats for Chrome for Word and PDF.