Analyze CSV Files with AI Without Uploading

Spreadsheet crashing on 1M rows? Worried about uploading sensitive customer CSVs to ChatGPT? VeilAnalytics runs DuckDB inside your browser tab so your files never leave your computer.

How In-Browser CSV Analysis Works

Unlike cloud SaaS tools that require uploading your spreadsheet to a remote server, VeilAnalytics streams your CSV directly from disk into WebAssembly memory.

Step 1

Local Ingestion

Drop your .csv or .tsv file. It loads directly into browser RAM via DuckDB-WASM. Zero bytes sent to any backend.

Step 2

Schema Extraction

Only column names and types (e.g. revenue: DOUBLE) are inspected to construct the schema prompt.

Step 3

In-Memory SQL

The LLM synthesizes a SQL query that runs locally in milliseconds, returning aggregations and interactive charts.

Real Benchmark: CSV Performance in Browser

Operation	Traditional Excel / Cloud AI	VeilAnalytics (DuckDB-WASM)
500,000 Row Aggregation	Excel freezes / 45s cloud upload	⚡ 140ms in-browser
Data Privacy Posture	Entire CSV stored on server logs	🔒 0 rows transmitted
Offline Capability	Requires constant internet	✈️ 100% offline ready

Analyze CSV Files with AI —Without Uploading Them.

How In-Browser CSV Analysis Works

Real Benchmark: CSV Performance in Browser

Analyze CSV Files with AI —
Without Uploading Them.