TECHNOLOGY
Technology tools for real-world decisions.
Practical tools that help you understand technology usage, website availability, energy consumption, and operating costs. Create QR codes for websites, text, Wi-Fi networks, and more.
3 TOOLS
Choose a tool.
Practical tools designed to help you understand, monitor, and calculate real-world technology decisions.
PC Electricity Cost Calculator
Estimate energy consumption and electricity costs based on power, usage, days, and electricity price.
Open calculator → 02Website Status Checker
Check whether a public website is responding and view its HTTP status, response time, HTTPS status, and final URL.
Check website status → 03QR Code Generator
Create free QR codes for websites, text, Wi-Fi networks, email addresses, and phone numbers. Download as PNG or SVG.
Generate QR Code →TECHNOLOGY
Understand the technology behind your decisions.
Use HARTI technology tools to turn technical information, website status, power usage, and operating data into clear, practical numbers. Create and share QR codes for everyday digital tasks.