We built CSVLens for data analysts, business users, and anyone who needs quick insights from CSV files without wrestling with complex tools.
CSVLens was born from a simple frustration: analyzing CSV files shouldn't require a PhD in data science or hours of manual work in spreadsheets.
We saw analysts spending more time wrangling data than understanding it. We saw teams uploading sensitive data to third-party services just to get basic insights. We saw powerful tools that were too complex for quick exploration.
So we built CSVLens: a tool that combines the simplicity of asking questions in plain English with the power of a real SQL database, all running privately in your browser.
Make data analysis accessible to everyone, regardless of technical skill level. Every professional should be able to explore their data and find insights independently.
Your data is yours. We built CSVLens to process everything locally in your browser using DuckDB WASM. Your CSV files never leave your computer.
Get answers in seconds, not hours. Natural language queries mean you can focus on insights instead of syntax.
We're a small team of engineers, data scientists, and designers who've spent years working with data. We've experienced the pain points firsthand, and we're passionate about solving them.
Every feature in CSVLens comes from real-world needs we've encountered in our own work. We use CSVLens daily, and we're constantly improving it based on how we (and you) actually work with data.
We leverage cutting-edge open-source technologies to deliver a fast, private, and powerful data analysis experience.
A high-performance analytical database that runs entirely in your browser via WebAssembly. No server uploads required.
Advanced language models convert your natural language questions into precise SQL queries automatically.
Built on Next.js 14 with React for a fast, responsive interface that feels native and instant.
Join thousands of analysts who trust CSVLens for quick, private data insights.
Get Started Free