ChatCellar: Private Archive for ChatGPT and Claude Chats

Keep your own copy of ChatGPT and Claude conversations in your browser. Save, search and reread offline. No account, no servers.

Your AI chats are worth keeping. ChatCellar saves your ChatGPT and Claude conversations into a private archive that lives in your own browser, so you can find and reread them any time, even offline. WHAT IT DOES • Save this chat: open a conversation on ChatGPT or Claude, click the ChatCellar button, done. Save it again later to update your copy. • Auto-save (optional, off until you turn it on): saves the chat you have open once a reply has finished. • One library for both: every saved chat in one place, with ChatGPT and Claude side by side. • Full-text search: find any word in any saved chat. Search ignores case and accents, understands “quoted phrases”, and can filter by ChatGPT or Claude. Matches are highlighted. • Read offline: code blocks, lists and formatting are kept. Claude’s “Thought process” is saved too, if you had it open. • Export and back up (Pro): download a chat as Markdown or JSON, export everything as a .zip of Markdown files, or make one backup file of your whole archive. • Restore (free): bring a backup back into ChatCellar at any time. PRIVATE BY DESIGN • Your chats stay in your browser. No account, no sign-in, no servers, no cloud. • ChatCellar reads only the conversation on your screen. It doesn’t use ChatGPT’s or Claude’s internal services, and doesn’t load your other chats in the background. • No analytics, no tracking, no ads. • The only network request is a license check with Gumroad when you buy Pro, and it carries your license key, never your chats. FREE AND PRO • Free: keep up to 25 chats, with search, the library, auto-save and restore. • Pro, $19 one-time (no subscription): unlimited chats, plus Markdown, JSON and .zip export and full backups. GOOD TO KNOW • Works on chatgpt.com and claude.ai. • Claude artifacts (the side panel) are not saved in this version. • Chats live in this browser profile. Uninstalling removes them, so make a backup first. • ChatCellar is independent and isn’t affiliated with OpenAI or Anthropic. Support: onceworks.tools@gmail.com Privacy policy: https://sites.google.com/view/onceworks-tools/chatcellar-privacy-policy