EphemeralChat — archive AI search threads

Turn throwaway Google AI Mode and Kimi threads into a permanent personal knowledge base

Problem

Google's AI overviews lead to follow-up questions and create valuable threads, but those threads are ephemeral and vanish. A developer built an extension specifically to replay such chats verbatim into Gemini or Claude, which confirms the anxiety about losing AI conversations. Kimi users joke about hammering continue to keep sessions alive, which points at the same continuity gap.

Solution

A browser extension plus a local archive service that captures question-answer pairs from Google AI Mode, Kimi and Perplexity, normalizes them to Markdown in a local library with topic tags and full-text search. It exports to Obsidian or Notion and can rebuild context in a new platform to keep asking.

Users

Content workers, researchers and students who use AI search as a daily research tool

MVP

Capture supported sites' Q&A into Markdown; local archive with full-text search; filter by date and site; export to Obsidian and clipboard; no cloud sync

Revenue

Free tier limited by site count and item count; $25 lifetime Pro unlocks all sites and export formats; later a team archive subscription

Why now

AI result pages are now the default research entry point yet are universally non-persistent; an extension plus local storage is a two-to-three week solo build