Why We Built CSV GPT: Secure, Local Data Exploration

Have you ever received a CSV file, opened it in Excel, and immediately felt limited? Filtering, joining, or aggregating data in spreadsheets can be tedious and prone to errors. Like many developers, we wanted the power of SQL to query our CSV data, but setting up a database every time we received a new file was just too much friction.

Scratching Our Own Itch

CSV GPT was born out of a simple need: to query tabular data quickly using SQL, without the hassle. We leverage DuckDB WASM, a powerful analytical database that runs entirely within the browser. This means you can simply drag and drop a CSV file and immediately start querying it with the full expressiveness of SQL—no servers, no setup, no waiting.

Privacy and Security by Default

There is a major issue with traditional cloud-based data analysis tools: security. Uploading sensitive financial, medical, or user data to a third-party server or cloud LLM is often impossible due to compliance and privacy concerns.

Because CSV GPT uses DuckDB WASM, your raw data never leaves your device. The processing happens locally using your browser's resources. We provide a 100% private environment for your most sensitive datasets.

Chat with Your Data

Even with SQL, writing the perfect query takes time. We asked ourselves, what if you could just chat with the file? CSV GPT allows you to "Bring Your Own LLM" (BYOK). By securely sending only the table structure (schema) to the AI, it generates the exact SQL required to answer your question. And if you connect it to a locally running model, the entire pipeline is completely isolated.

Try it today! Upload a file and start chatting.