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In-Browser Data Warehouse

Transform Your Data Analysis with Duckbase

Load CSV, Parquet, and Excel files instantly. Query with AI assistance. Learn SQL efficiently. All data stays local in your browser for maximum security and privacy.

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In-Browser Data Warehouse ━ Powered by DuckDB-WASM for lightning-fast data processing directly in your browser.
AI SQL Assistant ━ Get intelligent query suggestions from OpenAI, DeepSeek, Qwen, and other free models via OpenRouter.
100% Local & Secure ━ All data stays in your browser - no server uploads, complete privacy and security guaranteed.
Duckbase in-browser data warehouse interface showing SQL editor and AI assistant

Powerful Features

Everything You Need for Modern Data Analysis

From students learning SQL to professionals analyzing large datasets, Duckbase provides the tools you need for efficient data exploration and analysis.

CSV Import Parquet Support Excel Files AI SQL Assistant Local Processing Multi-Table Analysis Schema Awareness OpenRouter Integration DuckDB-WASM Engine OLAP Capabilities Privacy First No Server Uploads

Instant Data Loading

Load CSV, Parquet, and Excel files directly in your browser with zero server uploads.

AI-Powered Queries

Get intelligent SQL suggestions from OpenAI, DeepSeek, Qwen, and other models via OpenRouter.

Schema-Aware AI

AI understands your table structure and generates accurate, contextual SQL queries.

100% Local & Secure

All data processing happens in your browser. No server uploads, complete privacy guaranteed.

Why Choose Duckbase

The Ultimate Data Analysis Platform for Learners and Professionals

Whether you're a student learning SQL or a professional analyzing large datasets, Duckbase provides the perfect environment for efficient data exploration and analysis.

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Duckbase interface showing SQL editor with AI assistant and data visualization capabilities

For Students & Learners

Perfect SQL learning environment with AI assistance, instant feedback, and real-world data analysis practice.

  • AI-powered SQL learning assistance
  • Instant data loading and processing

For Data Professionals

Advanced analytics capabilities that outperform Excel and Google Sheets for large datasets and complex analysis.

  • Multi-table analysis and joins
  • OLAP capabilities for complex queries

Privacy & Security First

Complete data privacy with local processing. Your data never leaves your browser, ensuring maximum security.

  • Zero server data uploads
  • AI only sees schema, not data

Built for Data Excellence

Why Duckbase is the Future of Data Analysis

Experience the power of in-browser data processing with AI assistance, designed for modern data workflows.

DuckDB-WASM Engine

Lightning-fast data processing powered by DuckDB running directly in your browser for instant results.

Multi-Model AI Support

Access OpenAI, DeepSeek, Qwen, and other leading AI models through OpenRouter for intelligent SQL assistance.

Privacy-First Design

Complete data sovereignty with local processing. Your data never leaves your browser, ensuring maximum security.

Get Started in Minutes

How Duckbase Works

Three simple steps to transform your data analysis workflow with AI-powered insights.

1

Load Your Data

Upload CSV, Parquet, or Excel files directly in your browser. No server uploads, instant processing with DuckDB-WASM.

2

Ask AI for Queries

Describe what you want to analyze in plain English. AI understands your schema and generates optimized SQL queries.

3

Analyze & Learn

Execute queries instantly, explore results, and learn SQL through AI assistance. Perfect for both beginners and professionals.

Simple & Free

Start Analyzing Data for Free

No hidden fees, no credit card required. Get started with powerful data analysis tools today.

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Frequently asked questions

Answers to commonly asked questions about data analysis and our platform

Our AI SQL Assistant analyzes your data structure and helps you write SQL queries in natural language. Simply describe what you want to find in your data, and the AI will generate the appropriate SQL code. It learns from your data schema and provides suggestions to help you get the insights you need quickly.
We support CSV, Parquet, and Excel files for data upload. These formats cover most common data sources and allow you to easily import your datasets for analysis. The platform automatically detects the file format and structures your data for optimal querying.
All data processing happens locally in your browser. Your data never leaves your device, ensuring complete privacy and security. This local processing approach means your sensitive data stays under your control while still providing powerful analysis capabilities.
Free users get 5 AI queries per day, which is perfect for learning and exploring data analysis. This limit helps us provide the service to everyone while encouraging responsible usage. You can always upgrade to unlimited queries if you need more.
Yes, you can export your query results in multiple formats including CSV, JSON, and Excel. This allows you to easily share your findings with colleagues or use the data in other applications. All exports are processed locally for your privacy.
No, you don't need to know SQL! Our AI Assistant can help you write queries in natural language. Simply describe what you want to find in your data, and the AI will generate the SQL for you. It's perfect for beginners while still being powerful for experienced users.
Since all processing happens locally in your browser, the main limitation is your device's memory and processing power. We recommend files under 100MB for optimal performance, but you can work with larger files if your device can handle them. The platform will warn you if a file might be too large.
We support all modern browsers including Chrome, Firefox, Safari, and Edge. Since we use local processing, we recommend using the latest version of your browser for the best performance and compatibility with our features.

What Our Users Say

Loved by Data Professionals & Students

See how Duckbase is transforming data analysis workflows across different industries.

Data Analyst avatar

"Duckbase revolutionized how I analyze large datasets. The AI assistant helps me write complex queries in seconds, and everything stays local for security."

— Sarah Chen, Data Analyst

Student avatar

"As a student learning SQL, Duckbase is perfect. The AI explains queries in plain English and I can practice with real data without any setup."

— Alex Rodriguez, Computer Science Student

Business Analyst avatar

"Finally, a tool that handles large Excel files without crashing! The multi-table analysis capabilities are exactly what I needed for complex business reports."

— Maria Thompson, Business Analyst