It converts a numeric value into its written-out word form, such as converting 1234 into "One Thousand Two Hundred Thirty Four".
It uses the Indian numbering system with Crore, Lakh, and Thousand groupings rather than the international Million/Billion system.
Yes, entering a decimal number will convert the whole number part normally and add "Point" followed by the words for the decimal digits.
The tool prefixes the result with "Negative" and converts the absolute value of the number into words.
The tool supports numbers up to the crore range (currently up to 10 million) reliably using its Indian-system word conversion logic.