Calculate percentage changes of a changing value, or value changes with percentage changes
Calculate how much money you can earn over time with compound interest
Calculate the periodic payment amount for a loan (e.g. mortgage)
Binary number to decimal number
Decimal number to binary number
Hex number to decimal number
Decimal number to Hex number
Generate passwords
Generate random string / number
Base64 Encode
Base64 Decode
Image Base64 Encode
Image Base64 Decode
RGB to Hex convertor
Hex to RGB(A) convertor
Generate HTML code for colors (RGBa and Hex)
PHP Serialize online function
PHP Unserialize online function
JSON Encode online function
JSON Decode online function