LLMnesia

LLMnesia helps people retrieve prompts, answers, and decisions scattered across their AI conversations. Its Chrome and Edge extension can import existing history from supported services and capture new conversations as you work. Search with Cmd/Ctrl+Shift+9 to find matching messages and return to their original conversations. The free index is kept in the browser on your computer, without an account or cloud service. It covers services including ChatGPT, Claude, Gemini, Perplexity, Microsoft Copilot, DeepSeek, Grok, Mistral, Kimi, Qwen, Google AI Studio, and Character.AI. It can also include local Claude Code and Codex sessions. You can export the index or clear it when you no longer need it. A free MCP connection makes the local archive searchable from compatible desktop AI applications such as Claude Desktop, Cursor, and Codex. For access across devices, the optional Vault subscription adds end-to-end encrypted sync and backup. After setup on a computer, its web app beta lets subscribers search and read synced conversations on a phone or desktop. LLMnesia is useful for developers revisiting fixes, researchers finding earlier work, and writers recovering prompts or drafts.