Privacy-First 100% Client-Side & Privacy-First: Your data never leaves your device
Math & Numbers

Math & Numbers Calculators

Quick, reliable calculators for percentages, financial discounts, physical measurements, and proportional resolution scaling.

Percentage & Discount Calculator

Four handy calculator modules: X% of Y, percentage share, percentage increase/decrease, and discount savings.

Open Tool

Universal Unit Converter

Instant conversion between metric, imperial, and digital storage units (MB, GB, TB).

Open Tool

Aspect Ratio Calculator

Supports 16:9, 4:3, 1:1, 9:16, and custom aspect ratios with live visual scaling preview.

Open Tool
ESC

Accessibility & Display

High Contrast Mode
Increases text and interactive border contrast
Large Font Size
Scales text size by 120% for effortless reading
Reduced Motion
Disables animations and transitions