Drop a CSV, ask a question, get a chart. No Python setup, no database credentials, no data leaving your machine. QueryVeil turns plain English into SQL and runs it locally in your browser.
CSV, Excel, JSON, or Parquet. Loads into an in-browser SQL engine (DuckDB) in seconds. Millions of rows, no server needed.
"What's the monthly revenue trend?" The AI generates SQL from your column names (not your data), then executes it locally.
See the SQL, the results table, and auto-generated charts. Drill down, ask follow-ups, export to a report.
DuckDB WASM gives you a real analytical database. JOINs, window functions, CTEs, GROUP BY — everything works. Handles millions of rows at near-native speed.
QueryVeil detects when results should be visualized and generates the right chart type automatically. Bar, line, scatter, pie, histogram, treemap, funnel, and more.
Workspace memory tracks your frequent queries and insights across conversations. The AI gets better at understanding your specific dataset over time.
Auto-generated data briefs give you instant stats, column profiles, and AI narratives. Build formatted reports with a drag-and-drop report builder. Export as HTML or PDF.
Add descriptions, business names, and relationships to your columns. The AI uses this context to generate more accurate SQL — like a data dictionary that lives with your analysis.
Open DevTools network tab. Upload a file. Ask a question. Watch the requests: only schema metadata (column names) goes to the AI. Your actual data rows never leave the browser.
| Feature | QueryVeil | ChatGPT | Jupyter |
|---|---|---|---|
| No data upload | Yes | No | Yes |
| AI-powered questions | Yes | Yes | With plugins |
| Zero setup | Yes | Yes | No |
| Works offline | Yes | No | Yes |
| SQL engine | DuckDB WASM | No | Requires setup |
| Auto charts | Yes | Yes | Manual code |
| Report builder | Yes | No | No |
| Handles millions of rows | Yes | Slow | Yes |
Try QueryVeil with sample data — no signup, no upload. Open DevTools and verify that nothing leaves your browser.