Developer Calculators
Developer utilities that just work: Base64, URL encoding, hashing, IP subnets, number bases, color converters and more.
Bandwidth Calculator
Estimate download or upload time from file size and connection speed, at any unit.
CalculateBase64 Encode
Encode text to Base64 or decode Base64 back to text — instantly, safely in your browser.
CalculateBinary Calculator
Add, subtract, multiply or divide binary values and convert between base 2, 8, 10 and 16.
CalculateHex Calculator
Hex arithmetic and instant conversion between hexadecimal, decimal, octal and binary.
CalculateIp Subnet Calculator
Split IPv4 networks — network, broadcast, host range, mask, wildcard and usable hosts from any CIDR.
CalculatePassword Generator
Generate strong random passwords with length, character-class and ambiguity controls plus entropy.
CalculateUrl Encode
Percent-encode or decode URLs and query strings instantly, with a length and overhead breakdown.
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