Contest Utilities
Essential converters, bitwise logical calculators, memory overflows, and reference tables for contest workflows.
Standard Calculator
Evaluate float arithmetic equations containing addition, subtraction, products, quotients, and percentages.
Base Converter
Live numerical converter mapping numbers between Binary, Octal, Decimal, and Hexadecimal representations.
Binary Calculator
Perform bitwise operations (AND, OR, XOR, NOT, left/right shifts) and base conversions on numbers.
ASCII Table Reference
Searchable reference mapping ASCII values to character, decimal, hex, and binary representation.
Roman Numerals
Bidirectional converter mapping Roman numerals to decimal integers and vice versa.
Expression Evaluator
Safe mathematical expression evaluation with strict validation rules and formatted outputs.
Big Integer Calculator
Perform standard calculations on numbers exceeding JavaScript limit bounds using native BigInt methods.