A native macOS app for browsing, searching, and analyzing your Claude Code conversation history.
See every key decision across all your projects on a single timeline. Instantly reconnect with your train of thought.
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When you work with Claude Code, valuable conversations—where you clarify intentions, explore ideas, and make decisions—are scattered across projects and time. Histo brings them together so you can:
- Find pivotal moments — Locate conversations where ideas and decisions were forged
- Learn from patterns — Review successful prompts to reuse; recall failures to avoid
- Resume your context — Pick up exactly where you left off, without re-explaining everything
Browse all your projects at once, or focus on one.
- Chronological view of every session
- Filter by turn count to surface meaningful conversations
- One click to jump into full conversation detail
Read conversations the way they were meant to be read.
- Turn grouping — Consecutive messages from the same role are merged for clarity
- Sub-Session splitting — Long conversations are divided by git commits for quick navigation
- Collapsible tool calls — Focus on dialogue first; expand tool details when needed
- Rich content — Code blocks, diffs, images, Markdown, shell output
Find anything, anywhere, in any language.
- Full-text search across all conversations
- Multilingual support
- Dual-pane preview with direct jump to matched passage
Continue where you left off—or start fresh with just the context you need.
- Resume — Return to the original session
- Fork — Extract key discussion points into a new Claude Code session
A conversation on one Mac appears on another within seconds.
- Real-time sync via iCloud
- On-demand download (metadata syncs first, full content on click)
- Incremental updates only
Your data stays on your devices and your iCloud. Never on third-party servers.
- Zero sign-up required
- Zero tracking or analytics
- Works offline
Histo never modifies your original .claude files.
- Read-only access to your
.claudefolder - All caches stored in a separate SQLite database
- Automatic backup of original data
Let Claude Code access your conversation history directly through the Model Context Protocol.
- Search past conversations — Find relevant discussions without leaving your terminal
- Activity summaries — "What did I work on this week?"
- Session browsing — List and explore sessions with filters
- Report generation — Create markdown reports from multiple sessions
| Tool | Description |
|---|---|
histo_search |
Full-text search across all conversations |
histo_list_sessions |
List sessions with date/project filters |
histo_activity_summary |
Get activity summary for a time period |
histo_get_session |
Get metadata for a specific session |
histo_get_conversation |
Get conversation content with chunking |
histo_export_report |
Generate reports from multiple sessions |
# Add Histo MCP server to Claude Code
claude mcp add histo "/Applications/Histo.app/Contents/MacOS/HistoMCP"
# Verify connection
claude mcp listOnce connected, you can ask Claude Code things like:
- "What did I work on yesterday?"
- "Find conversations where I discussed authentication"
- "Show me my most complex sessions this week"
- "Generate a report from my recent histo sessions"
Download the latest .dmg from Releases.
- macOS 14.0 (Sonoma) or later
- Apple Silicon or Intel Mac
- Open the
.dmgand drag Histo to Applications - Launch Histo
- Grant read access to your Claude Code data directory when prompted
- Your conversations will be indexed automatically
- iCloud sync
- Unlimited sessions
- Access to conversations from the last 30 days
- Search within the last 30 days
- No time limits — Full access to your entire conversation history
- AI analysis features (coming soon)
| Phase | Price | Notes |
|---|---|---|
| Alpha (current) | Free | All Pro features unlocked |
| Early Bird | $29 | One-time, includes 1 year of updates |
| 1.0 Release | $39 | One-time, includes 1 year of updates |
Histo is currently in alpha. All Pro features are free during this period.
- Local LLM support for conversation analysis
- Advanced search filters
- Full keyboard shortcut support
- Export selected messages as PDF
- Internationalization (i18n)
- Mobile companion app (read-only)
- Usage statistics and insights
- Cloud AI model integration (BYOK only)
Histo is designed with privacy as a core principle:
| Aspect | How Histo Handles It |
|---|---|
| Data storage | Local SQLite database + your iCloud |
| Original files | Read-only, never modified |
| Account required | No |
| Analytics/tracking | None |
| Third-party servers | None |
Your conversation data never leaves your devices and iCloud account.
- Email: support@histo.cc
- Website: [building]