Retain
A unified knowledge base for your AI conversations. Search, learn, and reflect across Claude Code, claude.ai, ChatGPT, and more.
From the creator of claude-reflect (300+ stars) - this is the evolution: a native macOS app that aggregates all your AI conversations, extracts learnings, and helps you build persistent context.
What It Does
The problem: You use Claude Code, claude.ai, ChatGPT, and other AI tools daily. Context is scattered. When you discover a preference in one tool, you lose it in another. You keep re-explaining the same things.
The solution: Retain aggregates all your AI conversations into a single searchable knowledge base. It automatically extracts corrections and preferences, then exports them to CLAUDE.md so Claude remembers what you taught it.
Key Features
Multi-source sync : Auto-sync from Claude Code and Codex CLI (file watching), manual sync from claude.ai and ChatGPT (cookie-based)
: Auto-sync from Claude Code and Codex CLI (file watching), manual sync from claude.ai and ChatGPT (cookie-based) Instant search : Full-text search across 10k+ conversations with FTS5
: Full-text search across 10k+ conversations with FTS5 Learning extraction : Automatic detection of corrections ("no, use X instead") and preferences
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