Number Formatter
Format any number with thousand separators, fixed decimal places, currency, percent, or scientific notation. Live preview across locales.
100% in your browser. Files never uploaded.
Decimal
1,234,567.89
Compact
1.2M
Scientific
1.235E6
Percent
123,456,789%
Currency
$1,234,567.89
Bytes (humanized)
1.18 MB
How to use
- 1Type a numberAny decimal number — positive, negative, scientific.
- 2Pick locale, decimals, currencySix format styles render simultaneously.
- 3Copy any formatOne click per row.
FAQ
Where do the format rules come from?
The browser's native Intl.NumberFormat. Locale-aware separators, ordering, and grouping are exactly what each language expects.