Developer & IT calculators
Networking, data formats, and test-data generators for software work.
5 calculators
Hexadecimal & Binary Converter
Convert decimal integers to binary and hexadecimal for debugging. Use the calculator above. Use the calculator above. Use the calculator above.
Image Resize Calculator
Scale pixel dimensions and estimate uncompressed size at 24 bpp. Use the calculator above. Use the calculator above. Use the calculator above.
Random CSV Test Data Generator
Estimate CSV fixture size from row, column, and seed settings. Use the calculator above. Use the calculator above. Use the calculator above.
Subnet Mask / CIDR Calculator
Calculate IPv4 address counts, usable host counts, and a CIDR mask integer from a prefix length for network planning. Use the calculator above.
UUID Generator
Deterministic UUID-like segments from a seed for test fixtures. Use the calculator above. Use the calculator above. Use the calculator above.