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A clean, modern web interface with a SQL query editor on the left and a data results table on the right, featuring a small yellow rubber duck mascot logo in the corner, all displayed on a laptop screen with a blurred, minimalist office background.

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Show HN: Duck-UI – Browser-Based SQL IDE for DuckDB

Duck-UI is a modern web interface for DuckDB that runs entirely in the browser using WebAssembly, bringing powerful SQL capabilities directly to your web browser without requiring any server infrastructure.

Key Features

Advanced SQL Editor

• IntelliSense for intelligent code completion


• Syntax highlighting for better code readability


• Query history to track and revisit previous queries


• Full SQL support for DuckDB's extensive feature set

Data Import Capabilities
Duck-UI supports importing various data formats directly in the browser:


• CSV files


• JSON data


• Parquet files


• Arrow format

Browser-Native Architecture
Built using WebAssembly, Duck-UI processes all data locally within your browser, ensuring:


• Maximum privacy and security (data never leaves your device)


• No backend server requirements


• Instant setup and deployment


• Cross-platform compatibility

How It Works

Duck-UI leverages DuckDB-WASM, the WebAssembly version of DuckDB, to provide a full-featured SQL database engine running directly in your browser. This approach eliminates the need for traditional database servers while maintaining the full power of DuckDB's analytical capabilities.

Use Cases

• Data Exploration: Quickly analyze datasets without installing software


• Educational Purposes: Learn SQL in a safe, sandboxed environment


• Prototyping: Test queries and data transformations before deploying to production


• Data Journalism: Analyze and visualize data for reporting

Privacy and Security

All data processing happens locally in your browser. Your datasets, queries, and results never leave your device, making Duck-UI ideal for working with sensitive or proprietary data.

Getting Started

Visit duckui.com to start using Duck-UI immediately. No installation, registration, or setup required - just open the website and begin writing SQL queries.

Duck-UI represents the growing trend of browser-based SQL IDEs that make data analysis more accessible and privacy-focused, enabling users to work with data efficiently without the overhead of traditional database infrastructure.

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The prompt for this was: Show HN: Duck-UI – Browser-Based SQL IDE for DuckDB

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