Data Chart Generator: Generate chart configuration from CSV or table data. Free online data tool — browser-based, no upload.
Data tools support CSV, JSON, SQL and other structured formats. Pivot tables, chart generation, cleaning, and analysis for everyday data tasks.
We found that most online data tools require uploading CSV and JSON files to their servers. We built this tool to process everything locally in your browser — your datasets never leave your device.
Yes, completely free with no signup required.
Yes, it works on mobile browsers with touch support.
Data
It depends on your browser memory. Up to 100K rows of CSV/JSON data can generally be processed smoothly.
ToolPure supports CSV, JSON, XML, YAML, TSV, and Excel (XLSX) formats. You can convert between any of these formats, with automatic type detection for dates, numbers, and booleans.
The data tools can handle up to 500,000 rows in CSV format and 100,000 rows in JSON format. Processing uses Web Workers to maintain UI responsiveness with large datasets.
Yes, you can filter data by column values, sort by multiple columns, and remove duplicates before exporting. The tools also support pivot table generation and statistical summaries (sum, average, min, max, count).
🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.