SilverBullet

The web client runs in any modern browser, including on phones and tablets. There is also a Desktop app for macOS, Windows, and Linux that is free for personal and education use and requires a Pro license for work use, plus an optional sb command-line client that talks to a running server over HTTP. There is no native mobile app; on mobile you use the browser.

In the default multi-space mode, admins create accounts in the dashboard and control per-space read and write access. Servers can also connect any OpenID Connect provider for single sign-on, including Google Workspace and Pocket ID. Legacy single-space mode uses a username and password set via the SB_USER environment variable, API access works with bearer tokens, and setups using Authelia or Authentik can delegate authentication to a reverse proxy.

Yes. A Space is just a folder of Markdown files, so moving from Obsidian, Notion (via Markdown export), or any other Markdown tool is a matter of copying the files into the folder. Images, PDFs, and other attachments live in the same folder and are indexed automatically.

Yes to both. The server exposes an HTTP API for files and spaces that authenticates with bearer tokens, and the sb CLI can read and write pages, run Lua expressions and scripts, and self-update. Inside notes, Space Lua provides a full scripting environment, and plugs written in TypeScript extend the app further.

Yes. Multiple accounts can share a space with per-user read or write roles, and concurrent edits are combined with a three-way merge that is line- and word-aware. Real conflicts surface as Git-style conflict markers with a widget showing both sides, and offline edits reconcile once the connection returns. It is not real-time co-editing in the Google Docs sense, but a shared team wiki is an explicit use case.