Data & Spreadsheet
0 tools available, 9 coming soon. All free, all private.
Convert between CSV, Excel, and JSON formats, format spreadsheet data, and visualize datasets — all without uploading files to any server. Perfect for data analysts, developers, and anyone working with structured data.
When to Use Data & Spreadsheet
- Converting CSV files to JSON or Excel format
- Converting Excel spreadsheets to CSV or JSON
- Formatting and validating CSV data
- Visualizing datasets with charts and graphs
- Converting database query results between formats
Coming Soon
CSV Formatter & Validator
CSV Formatter & Validator — free and instant
Coming Soon
CSV to Excel
CSV to Excel — free and instant
Coming Soon
Excel to JSON
Excel to JSON — free and instant
Coming Soon
Excel to CSV
Excel to CSV — free and instant
Coming Soon
JSON to Excel
JSON to Excel — free and instant
Coming Soon
HTML Table to CSV
HTML Table to CSV — coming soon
Coming Soon
Number Formatter
Number Formatter — coming soon
Coming Soon
Data Visualizer (Charts)
Data Visualizer (Charts) — coming soon
Coming Soon
SQL to JSON
SQL to JSON — coming soon
Frequently Asked Questions
Can I convert large CSV files? ▼
Yes. Files up to several MB process smoothly. Very large files (50MB+) depend on your device memory.
Is my spreadsheet data safe? ▼
Yes. All data processing happens in your browser. Your spreadsheets and data files never leave your device.
What Excel formats are supported? ▼
XLSX (modern Excel), XLS (legacy), and CSV. We use the SheetJS library for reliable Excel parsing.