Developer Tools

Estimate flight time based on battery, payload, and motors.

Check thrust-to-weight ratio for drone builds.

Estimate safe continuous current from battery capacity and C rating.

Convert servo angles into approximate PWM pulse widths.

Calculate voltage, current, resistance, and power.

Find the right series resistor for an LED circuit.

Calculate output voltage from two divider resistors.

Format and validate JSON instantly.

Encode and decode Base64 strings.

Generate secure random passwords.

Pick colors and preview their hex value.

Create QR codes for text and URLs.

Generate placeholder copy for layouts.

Generate a simple hash from any text.

Compute joint angles for a 2-link planar arm given a target X/Y.

Convert motor RPM and wheel diameter to linear speed (m/s, km/h).

Validate and get a human-readable summary of cron expressions.

Basic linting for Dockerfile anti-patterns and best-practice suggestions.

Compute RC time constant and typical charge/discharge timings.

Convert analog voltage to ADC code given Vref and resolution.

Test JavaScript regular expressions and inspect matches/groups.

Convert `vw`/`vh` values to pixels for given viewport sizes.