Quick start
- Install Kioku (free, no signup).
- Pin the K icon to your Chrome toolbar.
- Open ChatGPT, Claude, Gemini, Perplexity, or Grok and chat.
- Click the K icon to see your conversations.
How conversation capture works
Kioku injects a content script into chatgpt.com, claude.ai, gemini.google.com, perplexity.ai, and grok.com. When you have a conversation, Kioku reads the messages from the page DOM and saves them to your browser's IndexedDB — a local database that stays on your device.
Capture is automatic but only triggers when:
- You're on a chat URL with a conversation ID (e.g., chatgpt.com/c/abc-123)
- The conversation has at least one message
- The page has finished loading
New chats (URL chatgpt.com/ with no ID) are skipped until the first reply assigns an ID.
Folders
Open the Kioku popup. Drag a conversation onto a folder name to move it. Click the folder name to filter the list to that folder.
To create or rename folders, use the side panel (Settings → Folders).
Search
Press Cmd+Shift+K (Mac) or Ctrl+Shift+K (Windows / Linux) anywhere to open the side panel search. Free tier searches conversation titles and tags. Pro tier searches every message body too.
Prompt library + Send to AI
Save reusable prompts in the Prompts tab of the side panel. Click "Send to AI" on any prompt and pick the destination — Kioku opens that LLM in a new tab and pastes the prompt automatically.
ChatGPT auto-submits the prompt; for the other LLMs, the text is inserted into the input box and you press Enter (auto-submit is best-effort across multiple LLMs).
Highlights
Right-click any selected text on a conversation page → "Save to Kioku as highlight". Add notes and tags from the Highlights tab in the side panel.
Export
Right-click any conversation or folder to export. Markdown is human-readable; JSON preserves all metadata. Whole-library export is in the side panel under Settings.
Troubleshooting
Conversations not appearing
- Verify the K icon is pinned to your toolbar (puzzle piece → pin).
- Open DevTools (F12) on a chat page, Console tab. Look for [Kioku/<platform>] log lines.
- If you see "captured N messages", capture is working — refresh the popup.
- If you see no logs, refresh the chat page so the content script loads.
Search returns no results
Free tier searches title + tags only. To search message bodies, upgrade to Pro at /pricing.
License key not working
Paste the entire JWT (long string starting with eyJ...) — no extra spaces. If still not working, email us.
Data portability
Your data is yours. Export anytime. Switch browsers freely (import on the new install). Cancel a subscription and your data stays on your device.
Contact
Questions? Bugs? Feature requests? Email [email protected]. We read everything.