Smart Connections

★ 5.269

Semantic search across your own notes via a local embedding model — no API key needed — plus AI chat over the vault.

Smart Connections automatically surfaces notes related in content to the one currently open as you write — for this, a local embedding model indexes the entire vault right after installation, with no API key, no additional apps, and no CLI tools ("zero setup"). The search is purely semantic: a note that contains the exact search phrase but is unrelated in content doesn't necessarily show up in the results — conversely, thematically related notes with no words in common may well appear. Two core views: the Connections view (via the left ribbon icon or the "Open: Connection view" command) continuously shows matches related to the current note, which can be inserted directly as a link via drag and drop; the Lookup view allows targeted, on-demand semantic search queries across the whole vault. Runs offline and privately by default, per the project's own claims also works on mobile devices, and is built as a lean, open-source core with minimal dependencies, meant to make audits easier. Important for current setups: the chat part, which older descriptions often mention alongside it, has since been split off into its own plugin called "Smart Chat" — its free version covers simple connections to third-party interfaces, while multi-provider model routing (cloud and local APIs) has been bundled into "Smart Chat Pro". Both plugins share the same local indexing infrastructure called "Smart Environment". Advanced features like inline suggestions while typing or the connection to Obsidian Bases are part of paid Pro plugins.

🔧 SETUP

In Obsidian: Settings → Community plugins → Browse → search for "Smart Connections".
Click "Install" and "Enable" — per the README, nothing more is needed, no API key, no CLI, no additional app.
The local embedding model automatically starts indexing the vault right away (a message appears once done).
Use the Connections icon in the left ribbon (or the "Open: Connection view" command) to view matches related to the current note.
Open the Lookup view for targeted search queries; for chat features, additionally install the separate "Smart Chat" plugin.

✅ WHEN TO USE IT?

Rediscovering forgotten but thematically related notes

While writing a new research entry, the Connections view automatically surfaces a months-old, related entry that a plain keyword search would have missed due to different wording.

Semantic search with no cloud connection at all

In a vault with sensitive personal notes, the Lookup view lets you specifically ask "what did I write about topic X", without any content leaving your own device.

⛔ WHEN NOT TO?

Holding a chat dialogue with your own vault

Since the v4 split, the chat part is no longer included in Smart Connections but lives in its own plugin (Smart Chat), whose multi-provider model connection is also gated behind the paid Pro version.

Better: Additionally install the Smart Chat plugin, or switch directly to Copilot for Obsidian for integrated chat including selectable cloud models.

Very large vaults with specialized vocabulary, without tuning

The bundled local embedding model is a general-purpose model; with highly domain-specific or multilingual vocabulary, match quality can drop without adjusting the settings (filtering, ranking).

Better: Use the recommendations from the settings guide on indexing/filtering, or additionally use a structured approach like Graphify for large, specialized knowledge bases.