Tools & Calculators

Browse Tools & Calculators on HelpBro.

PCB Tools

SMD Resistor Value

Decode SMD resistor marking codes.

Through Hole Resistor Value

Calculate resistor values using color bands.

Comparator Simulation

Simulate comparator circuits and analyze output.

OP AMP Simulation

Learn and simulate operational amplifier circuits.

Business Tools

Invoice Generator

Create and share professional invoices.

Job Reminder

Schedule and manage customer service reminders.

Estimate Generator

Generate repair quotations and cost estimates.