Digital & Technology Tools
Private browser utilities for QR codes, password generation, number systems, and digital habits.
Digital and technology tools for everyday online tasks: create QR codes, generate strong random passwords, convert number systems, and understand screen-time habits. Generators and converters run locally in your browser.
Popular Digital & Technology Calculators
All Digital & Technology Tools
12 carefully crafted calculators and tools to help you with digital & technology
Binary ↔ Decimal Converter
Easily convert numbers between binary (base 2) and decimal (base 10) systems. Perfect for programmers, students, and anyone learning how computers work.
Binary ↔ Hexadecimal Converter
Easily convert numbers between binary (base 2) and hexadecimal (base 16) systems. Essential for programmers, web developers, and computer science students.
Binary ↔ Octal Converter
Easily convert numbers between binary (base 2) and octal (base 8) systems. Useful for computing and digital electronics.
Color Converter
Convert any colour between HEX, RGB, and HSL instantly. Type a hex code or adjust the red, green, and blue sliders to see the colour and all three formats update live.
Data Storage Converter
Convert between bytes, kilobytes, megabytes, gigabytes, and terabytes — showing both the decimal (1 KB = 1,000 bytes) and binary (1 KiB = 1,024 bytes) values, so you can see why a '1 TB' drive reports as ~931 GiB.
Decimal ↔ Hexadecimal Converter
Easily convert numbers between decimal (base 10) and hexadecimal (base 16) systems. Essential for web developers working with colour codes and programmers debugging memory addresses.
Decimal ↔ Octal Converter
Easily convert numbers between decimal (base 10) and octal (base 8) systems. Useful for understanding Unix/Linux file permissions and legacy computing systems.
Download Time Calculator
Estimate how long a file takes to download from its size and your internet speed. Accounts for the bits-vs-bytes difference that trips up most estimates.
Hexadecimal ↔ Octal Converter
Easily convert numbers between hexadecimal (base 16) and octal (base 8) systems. Useful for low-level programming, computing systems, and when working with different number representations.
Password Generator
Choose a length and character groups to generate a random password using the browser's cryptographically secure random-number generator. Passwords are not stored by CalcPool.
Phone Life Thief Calculator
Calculate exactly how many days, weeks, and years of your life you have lost and will lose to your phone screen — based on your daily screen time.
QR Code Generator
Create a downloadable QR image for text, a URL, Wi-Fi, email, phone, or SMS. QR content is encoded locally in your browser.
CalcPool's Digital & Technology tools help with practical online tasks: encode information into a downloadable QR image, create a random password with browser cryptography, convert number systems, and explore screen-time habits. Inputs are processed in the browser wherever possible; generated passwords and QR content are not sent to a service.
Why Use CalcPool Digital Tools?
Step-by-step number conversions
Every number system converter shows the full conversion working — not just the answer. Binary to decimal conversions show each bit's positional value. Ideal for CS students learning the underlying maths.
Programmer's reference tables
Every converter includes a reference table of common values used in programming — ASCII codes, RGB colour values, Unix permissions, memory addresses, and more.
Digital wellness perspective
Alongside number conversion and screen-time tools, this category includes local generators for QR images and random passwords. Review encoded content before sharing, and use unique passwords stored in a trusted password manager.
Frequently Asked Questions
Common questions about digital & technology calculators and tools
Q.Which number systems can I convert between on CalcPool?
CalcPool currently has 6 number system converters: Binary ↔ Decimal, Binary ↔ Hexadecimal, Binary ↔ Octal, Decimal ↔ Hexadecimal, Decimal ↔ Octal, and Hexadecimal ↔ Octal. All conversions are instant and show step-by-step working.
Q.Do the number converters show their working?
Yes. Every converter shows the full positional value breakdown. For example, converting binary 1010 to decimal shows: (1×2³) + (0×2²) + (1×2¹) + (0×2⁰) = 8 + 0 + 2 + 0 = 10.
Q.How does the Phone Life Thief Calculator work?
Enter your age, average daily screen time, typical sleep hours, and a life-expectancy figure. The calculator works out your remaining waking hours and the share of them that current phone use would consume over the rest of your life. You set the life-expectancy value yourself, so the estimate reflects your own assumption rather than a fixed regional average.
Q.Are generated passwords and QR content uploaded?
The password and QR tools create their output in your browser and do not send the entered content to a remote generation service. A QR image can still reveal whatever information you encoded when someone scans it.
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