DuckDB UI

DuckDB UI is ranked #8 of 46 in database client software on Freedom251. It runs on Browser extension, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

DuckDB UI plans and pricing

All plans

Free local DuckDB UI Free browser-based interface · local SQL notebook · optional MotherDuck connection web.staging.motherduck.com · 1 Oct 2026

Compared on database client software

Free plan: Yes

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DuckDB UI

Purpose: The ui extension adds a user interface for a local DuckDB instance.
Maintainer: The UI is built and maintained by MotherDuck.
Launch options: You can start the UI with duckdb -ui or CALL start_ui().
Browser launch: Starting the UI opens it in the default browser.
Local resources: The native DuckDB process lets the UI use all local cores, memory and files.
Local execution: By default, queries run fully locally and queries and data never leave the computer.
MotherDuck integration: Using MotherDuck through the UI requires explicit opt-in and signing in to MotherDuck.
Notebook features: The interface includes a SQL notebook with autocomplete and keyboard shortcuts.
Data exploration: The UI includes a catalog browser, table explorer with column-level statistics, and a results viewer with sorting and filtering.
Embedded server: The UI is served by an HTTP server embedded in DuckDB, available by default at http://localhost:4213.
Remote asset security: The local server fetches UI files from ui.duckdb.org, and configured alternate URLs should be trusted because the application can access loaded DuckDB data.
Read-only limitation: Running the UI directly on a read-only database is not supported.
Platform limitation: The UI currently does not support windows_arm64.
Cloud security: MotherDuck has completed SOC 2 Type II attestation and has been GDPR verified.
Price from: Free

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Where it ranks on Freedom251

Best Database Client Software in 2026#8 of 46
Best OLAP Software in 2026#8 of 31
Best Spatial Databases in 2026#5 of 31
Best Embedded Databases in 2026#9 of 30
Best OLAP Databases in 2026#5 of 28
Best Columnar Databases in 2026#8 of 24

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Sources

duckdb.org/docs/current/core_extensions/ui· checked 1 Oct 2026
web.staging.motherduck.com/videos/how-to-use-the-new-duckdb-ui-fas· checked 1 Oct 2026
motherduck.com/trust-and-security/· checked 1 Oct 2026