Technology & IT

All 8 calculators in Technology & IT at a glance — Subnet Calculator, Password Strength Checker, Unix Timestamp Converter and more. Free, instant, no signup.

Subnet Calculator

IP + CIDR → network address, broadcast, host range & subnet mask

Password Strength Checker

Password entropy & brute-force time at 10 billion attempts/s

Unix Timestamp Converter

Convert Unix timestamp to date and back. Shows current timestamp

Color Converter

Convert colours: HEX ↔ RGB ↔ HSL with live preview & colour picker

Screen Size Calculator

Diagonal + aspect ratio → width, height, PPI

Aspect Ratio Calculator

Enter width or height → calculate missing dimension

3D Printing Filament Calculator

Print weight → cost, filament length & print time

Download Time Calculator

File size + bandwidth → download time

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