A collection of utilities I built to make my (and your) daily life easier.
Conversion between digital and physical values with presets.
Convert between data types (BYTE…LREAL) and number bases — decimal, hexadecimal, binary, bitwise.
Calculation of PID controller parameters using various methods.
Calculate belt speed from shaft rotational speed and diameter/radius to the belt surface.
Decode INT/DINT/REAL from Modbus registers, incl. byte and word swap.
Subnet mask, network/broadcast address and host range for plant network planning.
Convert between BCD, decimal and hexadecimal.
Convert between Gray code, binary and decimal for absolute encoders.
Compute checksums (Modbus CRC-16, CRC-32 and more).
Ratio, output speed and torque for gearboxes and pulleys.
Convert pressure, torque, flow and temperature.
Calculation of required cable cross-section with voltage drop.
Calculation of rated currents and motor protection device sizing.
Convert resistance or voltage to temperature (PT100/PT1000, NTC, thermocouple).
Ohm's law and power triangle (P, Q, S, cos φ) for AC and three-phase.
Convert colour bands to resistance value (4/5/6 bands).
Calculate energy consumption and cost from power, runtime and tariff.
Fast validator for complex JSON schemas with visual error output.
Create color palettes, convert between HEX, RGB, HSL, and CMYK with contrast check.
Local image compression for WebP and AVIF without server upload.
Explain cron expressions in plain text and show next run times.
Convert Unix timestamp ↔ date/time with time zones.
Encode/decode Base64 and decode JWT tokens.
Generate hashes (SHA-256 and more) and UUIDs locally in the browser.
Test regular expressions, highlight matches and explain them.
Convert between JSON and YAML.
Compare two texts line by line.
Generate QR codes from text or URL.
Estimate password strength (local, nothing stored).
Simulate wealth accumulation: compound interest, inflation, final portfolio with interactive charts.
Calculate closing costs, monthly payments, amortization schedule, and remaining debt professionally.
