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Marcus Sync lives in your menu bar and syncs Apple Reminders to Markdown files — perfect for Obsidian, Logseq, or any text-based productivity system.
Pick a Reminder list and a Markdown file. Marcus syncs your tasks automatically on a schedule or manually. One-way, additive sync — your manual edits are always preserved.
Menu Bar Only
No dock icon, always accessible. Lives quietly in your menu bar.
Auto-Sync
Configurable intervals from 1 minute to 2 hours. Or sync manually anytime.
Preserves Manual Edits
One-way additive sync. Never deletes your hand-written notes.
Three Output Formats
Emoji (Obsidian Tasks), Dataview, and Kanban — pick the one that fits your workflow.
Insert Under Header
Place tasks under a specific heading in your file. Supports #, ##, and ### levels.
Any Markdown File
Works with any .md file. Obsidian vault, Logseq, or any Markdown-based system.
Optional Cleanup
Delete tasks from Reminders after sync if you want a clean list.
Native macOS
Built with SwiftUI and EventKit. No Electron, no web views, no bloat.
Emoji — Obsidian Tasks
Dataview
Kanban
Marcus only reads your selected Reminder list and writes to your chosen file. No data leaves your Mac. No accounts, no cloud, no telemetry. Requires only Reminders permission, requested on first launch.
Marcus is in active development. Have an idea or found a bug? Let us know on GitHub.