Number Formatter — Free Online Tool

Format numbers with locale-aware thousands separators and fixed decimals using the Intl API — US, EU, Indian and more.. Number Formatter is a free online tool from the ToolsRift Developer Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use Number Formatter

Enter a number, pick a locale and decimal precision, and the tool formats it with the correct grouping separators for that region using the browser Intl API.

Frequently asked questions

Why do locales group numbers differently?

Regions vary: the US uses 1,000,000, many EU locales use 1.000.000, and India groups as 10,00,000 (lakh/crore).

How do I control decimal places?

Set the minimum and maximum fraction digits; the formatter rounds and pads to match, e.g. 2 decimals gives 3.50.

Which decimal separator is used?

It follows the locale — a period in en-US and a comma in many European locales — so numbers read naturally for that audience.

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