Business & Data Tools

Quick numbers and data conversions for small businesses and analysts: profit margin, markup, ROI, and clean conversion between CSV and JSON.

Popular tools

Profit Margin Calculator

Margin, markup and profit from cost and price — or find the price for a target margin.

ROI Calculator

Return on investment, net gain and annualized return (CAGR).

CSV to JSON

Convert CSV or spreadsheet exports to a JSON array, with automatic delimiter detection.

JSON to CSV

Convert a JSON array to CSV that opens cleanly in Excel or Google Sheets.

Popular workflows

Multi-step solutions that use these tools.

Spreadsheet to API JSON

CSV → Minified JSON array

Send spreadsheet data to an API.

CSV to JSONMinify JSON

CSV to Readable JSON

CSV → Formatted JSON

Inspect CSV data as structured JSON.

CSV to JSONFormat JSON

JSON to Spreadsheet

JSON → CSV file

Open API data in Excel or Google Sheets.

Validate JSONJSON to CSV

FAQ

Can I convert large CSV files?

Yes. Files of several megabytes convert in seconds in the browser.

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