Memex
A local-first AI journal organizes text, photos, and voice on iOS and Android, with Ollama support for offline use and portable Markdown storage.

Memex is an AI journal for people who capture scattered notes, photos, and voice recordings and want help organizing them. It turns those fragments into structured records and connects information across entries.
- Mixed-media capture: Combine text, photos, and voice in one entry, with on-device text recognition and image labeling.
- Automatic organization: AI sorts entries into timeline cards for tasks, events, people, places, measurements, and expenses, then links related records and files knowledge into projects, areas, resources, and archives.
- Insights across entries: Review patterns through trend charts, maps, timelines, selected quotes, and narrative summaries drawn from your records.
- AI companions: Create characters that comment on journal cards and chat with you using remembered context, or import SillyTavern character cards.
- Custom agents: Build agents on your phone that respond to local events, use custom prompts, execute JavaScript, and work with other agents.
Memex runs on iOS and Android and is open source under GPL-3.0. Records, cards, and knowledge live on your device as Markdown files and a SQLite database. You can export records as Markdown, back up and restore the journal, and use iCloud Drive or a custom folder for storage.
AI features require a model connection. Ollama supports fully offline use; cloud providers such as OpenAI, Claude, and Gemini receive prompts directly from your phone using your own API key. The journal stays stored locally, but choosing a cloud model sends the prompts it processes to that provider.