TopZ – Privacy-first AI data workbench running entirely in your browser

Summary: TopZ is a browser-based AI data analysis tool that processes Excel, CSV, JSON, and Parquet files locally using DuckDB WASM. It generates SQL queries from natural language questions by reading only column names and data types, ensuring data privacy without uploading files.

What it does

TopZ enables users to analyze data files directly in the browser without sending data to servers. It supports SQL generation from natural language, multi-table joins, chart creation, and exporting results, all while maintaining GDPR and HIPAA compliance.

Who it's for

It is designed for users handling sensitive or confidential data who need AI-powered analysis without compromising privacy, such as financial, customer, or research datasets.

Why it matters

TopZ solves the conflict between powerful cloud analytics and data privacy by providing fully local AI-driven data analysis, eliminating the need to upload sensitive information.