Radix converter
Radix converter lets you convert signed big integers between bases 2 and 36 without floating-point loss in your browser.
8 tools
Numbers, units, and bits
Bitwise calculator
Bitwise calculator lets you calculate AND, OR, XOR, NOT, and shifts with explicit width and signedness in your browser.
Decimal calculator
Decimal calculator lets you evaluate decimal arithmetic and parentheses precisely without eval in your browser.
Data unit converter
Data unit converter lets you convert bits, bytes, SI, IEC, capacity, and rate without conflating them in your browser.
Percentage calculator
Percentage calculator lets you calculate percentages, change rates, and original values with zero checks in your browser.
Ratio and aspect ratio
Ratio and aspect ratio lets you reduce integer ratios and inspect aspect ratios in your browser.
IEEE 754 inspector
IEEE 754 inspector lets you inspect binary32 or binary64 sign, exponent, fraction, and hexadecimal bits in your browser.
Integer range
Integer range lets you calculate signed and unsigned integer ranges and required bit width in your browser.