Online Tools
Powerful utilities that run entirely in your browser. No uploads, no sign-ups, no data collection.
Image Compressor
Reduce JPEG, PNG, and WebP file sizes without losing quality. Fast, secure, and runs entirely in your browser.
QR Generator
Generate QR codes for URLs, text, WiFi, email, and phone numbers. Customize colors and download as PNG.
Background Remover
Remove backgrounds from images instantly. Get transparent PNGs with no uploads to any server.
Invoice Generator
Create professional invoices with line items, taxes, and totals. Print or save as PDF in one click.
GST Calculator
Add or remove GST from any amount. Supports 5%, 12%, 18%, 28% rates with CGST/SGST breakdown.
Password Generator
Generate strong, random passwords with customizable length and character types. Includes strength indicator.
Big Number Calculator
Perform arithmetic on huge integers with thousands of digits. Supports +, โ, ร, รท, power, factorial, GCD, LCM, and modulo.
Watts to Volts
Convert watts to volts using amps or resistance. Based on Ohm's Law with real-time calculations.
Volts to Watts
Convert volts to watts using amps or resistance. Shows both watts and kilowatts for large values.
Watts to Electron Volts
Convert watts to electron volts with time input. Auto-scales results to eV, keV, MeV, GeV, and TeV.
Watts to Amps
Convert watts to amps for DC, single-phase AC, and three-phase AC circuits with power factor support.
Amps to Watts
Convert amps to watts for DC and AC circuits. Supports single-phase and three-phase with power factor.
Amps to VA
Convert amps to volt-amperes (VA) for single-phase and three-phase AC. Essential for UPS and transformer sizing.
Amps to Volts
Convert amps to volts using watts (Watt's Law) or resistance (Ohm's Law). Real-time results.
Volts to Amps
Convert volts to amps using watts or resistance. Includes conversion tables for common voltages.
Transformer Calculator
Calculate voltage, current, turns ratio, power, efficiency, and impedance for step-up and step-down transformers.
Tallness Calculator
Predict your child's adult height using the mid-parental height method. Includes growth percentile analysis and interactive CDC growth chart.
AC Wattage Calculator
Calculate real power (W), apparent power (VA), and reactive power (VAR) for single-phase and three-phase AC circuits. Includes power triangle, appliance tables, and power factor guide.
Why Use Our Tools?
100% Private
All processing happens in your browser. Your files and data never leave your device.
Lightning Fast
No server round-trips. Results are instant because everything runs locally.
Completely Free
No hidden fees, no premium tiers, no sign-ups. Every tool is free to use, forever.
Works Everywhere
Responsive design works on desktop, tablet, and mobile. Use any modern browser.