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SilverBullet
MITSilverBullet replaces note apps like Roam Research with an open-source, self-hosted Markdown workspace powered by dynamic queries and embedded Space Lua.
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Overview
Dutch computer scientist Zef Hemel built SilverBullet to treat personal notes as an extensible database rather than a locked vendor silo. Rooted in standard Markdown files on your own storage, it delivers an uncluttered web notebook powered by live queries and custom scripts.
Why SilverBullet instead of Roam Research
Roam Research popularized networked thought by turning every bullet into an addressable node in a proprietary cloud graph, charging ongoing subscriptions. SilverBullet matches that linking workflow with bi-directional references and automated task queries, but organizes content into standard Markdown documents rather than nested outliner blocks. Non-technical writers get a familiar document interface that reads like a clean digital notebook, though they miss Roam's drag-and-drop block references and polished native mobile apps.
The practical divide is data ownership and hosting. Roam stores notes in a closed database that demands manual exports to escape. SilverBullet saves every page as a standard text file on your drive, making library backups as simple as copying a directory. That autonomy requires self-hosting: you must maintain a lightweight container or personal server, whereas Roam handles operations behind an email login.
What it does well
- Plain Markdown storage: Files sit on your local drive as regular text, opening in any editor without proprietary lock-in.
- Live preview editing: Renders formatting directly as you type, keeping the page clean without a split preview pane.
- Bi-directional linking: Brackets link related pages, while backlink lists track connections automatically.
- Automated task aggregation: Inline queries collect unchecked to-do items from across your notes onto a single dashboard.
- Browser accessibility: The interface runs in any desktop or mobile browser as a web app, avoiding device-specific installs.
Limitations
- No graphical formatting bar: Editing relies entirely on Markdown syntax and slash commands rather than clickable text styling buttons.
- Single-user architecture: The application does not support multi-user accounts or real-time concurrent editing on shared notes.
- Self-hosting requirement: Getting started requires running a personal server or Docker container, which demands basic technical comfort or admin help.