Site Map
All public pages on Funifytools
This directory contains all indexable HTML pages currently available in the public site.
Main Pages
- Funifytools | Practical calculators, generators, guides, and notes
- Online Cryptography, Encryption, and Hash Tools
- Funify Notes - Browser-Based Notes Workspace
- Online Utility Tools for Data, Text, Images, and Time
- Browser Games, Quizzes, and Fun Online Tests
- Online Calculators - Finance, Health, Cooking, and More
- About Me
- Privacy Policy
- Site Map
- Terms of Service
Calculators
Architecture
- Flooring Calculator - Estimate Material Quantity
- Paint and Wallpaper Calculator - Wall Coverage
- Room Size Calculator - Floor Area and Dimensions
Cooking
- Recipe Calorie Calculator - Calories per Serving
- Cocktail Ratio Calculator - Mix Drink Ingredients
- Cooking Time Converter - Oven, Air Fryer, Microwave
- Defrost Time Calculator - Safe Thawing Estimates
- Dough Fermentation Calculator - Proofing Time
- Flour Converter - Grams, Cups, and Flour Types
- Ice Dilution Calculator - Final Drink Strength
- Ingredient Substitution Calculator for Recipes
- Recipe Nutrition Calculator - Macros per Serving
- Recipe Scaler - Adjust Ingredients and Servings
- Refrigerator Storage Guide - Food Freshness Times
- Sodium Concentration Calculator for Recipes
- Sugar Glaze and Icing Ratio Calculator
Education
- Circle Area and Radius Calculator
- Ideal Gas Pressure Calculator - PV=nRT
- GPA Calculator - Courses, Credits, and Grades
- Pythagorean Theorem Calculator - Find Triangle Sides
- Quadratic Equation Solver - Real and Complex Roots
- Speed, Distance, and Time Calculator
- Test Score Calculator - Average and Statistics
- Trigonometry Calculator - Sin, Cos, Tan, and Inverses
Energy And Environment
Finance
- After-Tax Income Calculator - Estimate Take-Home Pay
- Annuity Calculator - Retirement Income Planning
- Auto Loan Calculator - Monthly Payment and Cost
- Bond Yield and Yield to Maturity Calculator
- Stock Break-Even and Average Price Calculator
- Credit Card Interest and Payoff Calculator
- Currency Converter with Exchange Fees
- Dividend Yield Calculator - Income and Returns
- Home Affordability Calculator - Estimate Buying Power
- International Money Transfer Fee Calculator
- Loan Interest Calculator - Total Repayment Cost
- Mortgage Calculator - Monthly Payment and Interest
- Savings Interest Calculator - Estimate Earnings
- Tip Calculator - Gratuity and Bill Split
Fitness And Health
- BMI Calculator - Body Mass Index and Weight Category
- BMR Calculator - Basal Metabolic Rate
- Daily Caffeine Intake Calculator
- Calories Burned Calculator by Exercise
- Daily Water Intake and Hydration Calculator
- Marathon Time Predictor and Pace Planner
- Daily Protein Intake Calculator by Goal
- Running Pace Calculator - Pace, Speed, and Time
- Sleep Cycle Calculator - Bedtime and Wake-Up Times
- Steps to Calories Calculator
- Goal Weight Timeline Calculator
- TDEE Calculator - Total Daily Energy Expenditure
- VO2 Max Calculator - Aerobic Fitness Estimate
Investment
- Profit Margin Calculator - Multi-Product Analysis
- Book Value per Share (BPS) Calculator
- EBITDA Calculator - Business Earnings Analysis
- Earnings per Share (EPS) Calculator
- Investment Return and Profit Calculator
- Price-to-Book Ratio (PBR) Calculator
- Price-to-Earnings Ratio (PER) Calculator
- Rental Yield Calculator - Gross, Net, and ROI
- ROI Calculator - Return on Investment
- Stock Valuation Calculator - EPS, PER, PBR, and ROE
Travel
Unit Converter
Tools and Utilities
Chill Zone
- Online Archery Reaction Game
- Jangttaeng Korean Card Game Online
- Lucky Number Generator and Personality Quiz
Cryptography Hash
- AES Encryption and Decryption Tool Online
- DES Encryption and Decryption Tool Online
- Keccak Hash Generator - 224, 256, 384, and 512 Bit
- MD5 Hash Generator Online
- RC4 Encryption and Decryption Tool Online
- RIPEMD-160 Hash Generator Online
- SHA-1 Hash Generator Online
- SHA-224 Hash Generator Online
- SHA-256 Hash Generator Online
- SHA-384 Hash Generator Online
- SHA-512 Hash Generator Online
- SHAKE-128 Hash Generator with Custom Length
- SHAKE-256 Hash Generator with Custom Length
- Triple DES Encryption and Decryption Tool Online
Data Processing
- Online Barcode Generator for Product Labels
- Online Chart Maker - Bar, Line, and Pie Charts
- QR Code Generator - Create Custom QR Codes Online
Image Processing
Lookup
- ASCII Code Lookup and Complete Character Table
- Taxonomy Class and Order Lookup with GBIF
- Countries and Capitals Lookup with Population Data
Text Tools
- Online Sticky Notes with Custom Cards and Groups
- Online Text Analyzer - Words, Characters, and Sentences
- Online Text Comparison Tool - Find Differences
- Online Text Converter - Encode, Decode, and Format
- Safe HTML Formatter and Sanitizer Online
Time And Weather
Blog Posts
Posts Main
10 Second Lesson
- 10-second lesson | Computer Component: CPU
- 10-second lesson | Computer Component: HDD,SSD
- 10-second lesson | Does AI Really Think?
- 10-second lesson | How a Web Address (URL) Actually Works
- 10-second lesson | How Is an AI Voice Created?
- 10-second lesson | How Passwords Are Actually Stored
- 10-second lesson | Is My File Really in the Cloud?
- 10-second lesson | Korean Lotto vs. Bitcoin Mining — Comparing the Odds of “Luck”
- 10-second lesson | People Who Built the Computer
- 10-second lesson | The Difference Between JPG, PNG, and GIF
- 10-second lesson | Understanding the QR Code
- 10-second lesson | What Are Cookies and Sessions?
- 10-second lesson | Why Is Bitcoin Called “Mining”?
- 10-Second IT Lesson: What Is Cache Memory?
- 10-Second IT Lesson: Why Does AI Use So Much Electricity?
AI
- Checking the Power of Prompt Engineering — with a Bowl of Jjamppong
- What Is Prompt Engineering? — A New Language Skill for the Age of AI
Automotive Technology
Coding
- Complete Guide to Variable Data Types | Definition, Types with Examples, and Data Representation in Programming
- How to Find Logical Errors in Coding | Understanding Exception Handling and Problem-Solving Thinking for Beginners (Pseudo Code Part 2)
- The Complete Guide to Loops (Iteration) | Programming’s Most Powerful Tool, Core Principle, and Essential Examples
- Understanding “Constants” in Programming — The Concept of an Unchanging Signpost
- Understanding “Variables” in Programming | A Mailbox Analogy for Coding Beginners
- What Are Operators, the Hidden Main Characters of Code? | Funifytools Blog Posts
- What Is a Function in Programming? A Simple and Practical Guide to Reusability | Funifytools Blog Posts
- What Is an If-Else Statement in Programming?
- What is Coding? Definition, History, Reasons to Learn It, and the Way of Thinking Needed by Both Humanities and Science Majors
- What Is Coding? Learning Logical Thinking Through Pseudo Code for Absolute Beginners
- Binary Search Trees (BSTs): How Search, Insertion, and Deletion Work
- Time Complexity and Big O Notation: How to Measure Algorithm Performance
Computer
- A Complete Look Inside a Computer: What Each Part Does and the Basics You Should Know
- Complete Guide to Operating Systems | OS Basics, How They Work, Multitasking, 32-bit vs 64-bit, Windows, Linux Overview
- Compressed Files (ZIP, RAR, 7Z): What They Are and Why They Matter
- File Extensions: What They Are and Why They Matter
- Files and Directories: The Basics of How Computers Organize Data
- History of Computers : A Timeline of Development (Who Invented Them?)
- How Computers Calculate with Electricity : Binary Numbers and the Logic of 0s and 1s
- How to Use Windows Applications: How to Learn Any Program Easily
- Is a Computer Just a Calculator? Understanding How It Works (Documents, Images, Music, Movies, Chat, Photos…)
- The Ultimate CPU Guide : Definition, Generations, Types, Motherboard Compatibility, and Must-Know Basics
- The Ultimate GPU Guide : What It Is, What It Does, Generations, Types, Essential Knowledge, and a Pre-Purchase Checklist
- The Ultimate Motherboard Guide : What It Is, How It’s Built, Chipsets, Generations, Brand Landscape, and a Pre-Purchase Checklist
- The Ultimate PC Power Guide (PSU) : Wattage Sizing, Efficiency Ratings, ATX Standards, and Brand Pointers
- The Ultimate RAM Guide : DDR4 vs DDR5, Recommended Capacity, and How to Choose Speed/Clocks
- The Ultimate Storage Guide : SSD vs HDD Differences, Speed, Capacity, and PCIe 4.0/5.0 Explained
- What are macOS and iOS operating systems? The story of Apple’s history and philosophy shaped by Steve Jobs, the App Store and Apple ecosystem, their security, features, pros and cons, and future outlook
- What Does It Mean to Install a Program? A Beginner-Friendly Guide
- What Is a Computer Drive? Understanding C Drive, D Drive, Why There’s No A or B, and the Difference Between System Drives and Storage Devices
- What Is an Executable File? Understanding .exe, How Programs Run, and the Basics of Coding
- What is the Android Operating System? | Linux-Based Structure, Features and Drawbacks, Differences from iOS, Market Share, and Future Outlook
- What is the Linux Operating System? | Differences from Windows, Open-Source Server Use, Features, Pros and Cons, History, and Its Meaning Today
- Windows Built-In Apps: A Beginner's Guide to Essential Programs
- Windows Operating System | From Bill Gates and Microsoft’s History to Features, Cost, Security, and Market Share
IT Event
- AI Festa 2025 | Korea’s Largest AI Event at COEX - Seminars, Conferences, and Exhibitions
- AI Festa 2025 Review | A Visit to Korea’s Largest AI Expo at COEX – Feel Like You’ve Been There Even If You Haven’t
- Korea Electronics Show 2025 (KES 2025) at COEX – A Complete Guide to Korea’s Largest IT and Electronics Expo Shaping the Infinite Future of AI, Robotics, and XR
IT Story
- Front End vs Back End: Definitions, Differences, Comparison, Examples, and Key Features in One Guide
- iPhone 17 – Why Is It So Quiet This Year? | The Most Subtle Innovation, Reaching Maturity
- IT Horror Story - KakaoTalk from the Dead
- IT Horror Story – Midnight Message… Poltergeist Typing
- IT Horror Story – The Curse of the Webcam
- The Future Value of Bitcoin from a Technical Perspective | The Story of Digital Gold Shaped by Electricity and Probability
- Why Hangul Feels “Uncomfortable” in the World of 0s and 1s
- What Could Ripple's Skinny Master Account Proposal Change?
- Boston Dynamics' Atlas Robot: What Happens When AI Enters the Picture?
IT Trend
- 2026 WTO Digital Trade Rules
- Anthropic, the Company Behind ChatGPT Rival Claude, Is Expanding into South Korea
- Can the Law Curb Social Media? Australia’s Under-16 Limits and Google’s Concerns
- Dunamu’s Possible Integration into Naver Financial – What Could This Mean for the Coin Market and Naver Pay?
- Meta to Build a $1.5 Billion AI Data Center in Texas | What Is a Data Center?
- How Generative AI Is Reshaping Employment and What Workers Can Do
- Mondelēz's Generative AI Marketing Shift: How Could It Cut Advertising Costs?
- The Future of the Cloud: A New Era of Growth Driven by AI
- U.S. Weighs 1:1 Chip Rule: What It Means for Global Supply Chains
- Why Companies Buy Sports Broadcasting Rights | Apple’s F1 Deal and the Logic of Streaming
- Google to Invest $40 Billion in Texas Data Centers as the AI Infrastructure Race Intensifies
- HP Accelerates AI Transformation Amid PC Market Challenges and Rising Costs
- Nokia's Reinvention: From Mobile Phone Giant to AI Networking Company
- Nvidia's Earnings Reignite the Rally in Asian Technology Stocks
- The Next AI Device Design War: Smart Glasses, Wearables, and Human-Centered Interfaces
- TPU vs. GPU: A Battle of Technology, Finance, and AI Infrastructure
- Apple's App Store Fee Debate After the EU Digital Markets Act: Are External Payments Really Free?
- IBM's $11 Billion Acquisition of Confluent: A Strategic Bet on Data Streaming for the AI Cloud Era
- 10 IT and AI Trends for 2026: The Growing Divide Between Companies That Use AI Well and Those That Use It Safely
- Lenovo's Vision for the Future of AI at Davos: A Multi-Model Strategy
- AI Is Becoming an Infrastructure Industry: The Winners Will Control Data Centers, Power, and GPUs
- Amazon's $200 Billion AI Infrastructure Bet—and Why Markets Are Nervous
Notes
People
Tech History
- The Evolution of Smartphones | From DynaTAC to iPhone 17, Galaxy S26 — 40 Years of Innovation and the Rise of AI Phones
- A Brief History of Social Media: From Cyworld “Wave Riding” to the Age of Short-Form Video
- The History of Office Software: From VisiCalc and Microsoft Office to Microsoft 365 and Copilot
- The History of the Keyboard and Mouse: Why QWERTY Became the Standard and How Optical Mice Changed Everything
Tech Terms
- Analog vs Digital: Complete Guide to Definitions, Differences, Comparisons, Examples, Pros and Cons
- Data vs. Information: A Simple Explanation With Practical Examples
- What Is a UPS (Uninterruptible Power Supply)? | The Invisible Safety System That Protects Data Center Power
- Alpha vs. Beta Testing: A Simple Guide to the Meaning, Differences, and Examples
- Cloud Computing Explained: A Simple Guide to Understanding the Cloud
- Hot Wallets and Cold Wallets Explained: Understanding Crypto Security Through the Upbit Incident
- Three Types of Cloud Services: SaaS, PaaS, and IaaS Explained Simply
- What Is a Digital Twin? How Virtual Replicas Help Predict the Future
- What Is a Legacy System? A Clear Definition with Practical Examples
- What Is a Software Bug? Its Origin, Famous Examples, and the Meaning of Debugging
- What Is an API (Application Programming Interface)? A Beginner's Guide with Practical Examples
- What Is PC Virtualization? Understanding Virtual Machines and Hypervisors
- What Is ERP? A Beginner's Guide to Enterprise Resource Planning
- What Is Digital Forensics? A Complete Guide to the Process, Key Terms, and Famous Cases
- Conductors vs. Semiconductors: From Basic Computer Principles to the AI Chip Boom