Sitemap

A full, browsable index of every page on 2xKit — calculators, tools, games, guides, templates, checklists and workflows — organized by category. Looking for the XML version for a crawler or feed reader instead? See the XML sitemap.

Calculators

Tools

Image Tools

Compress Image
Resize Image
Convert Image Format
Crop Image
Remove Background
Image to PDF
Rotate Image
Photo Collage Maker
Watermark Image
Meme Generator
Batch Rotate Images
HEIC to JPG Converter
Animated GIF Maker
AI Upscale Image
Blur Face
Photo Editor
EXIF Remover
Favicon Generator
Social Media Image Resizer
SVG Optimizer
Passport Photo Maker
Image Splitter
Compress Image to Target Size
Image Border Generator
Image Rounded Corners
Image Color Picker
Dominant Color Extractor
Image to Base64
Image Contact Sheet Maker
Image Placeholder Generator
Batch Image Converter
Batch Image Compressor
Batch Resize Images
Image Sharpener
Image Noise Reducer
Pixel Art Converter
Image Comparison Slider
Image EXIF Editor
Image Vectorizer
Brightness/Contrast Adjuster
Image Filters
Blur Image Background
Change Image Background
Object Blur
Add Shadow to Image
Add Text to Image
Image Annotator
Profile Picture Maker
Panorama Splitter
Instagram Carousel Splitter
Image EXIF Viewer
Screenshot to Text (OCR)
Bulk Image Renamer
Avatar Generator
ASCII Art Generator
Whiteboard
Device Mockup Generator
Text Behind Image
GIF Compressor
Image Diff Checker
Print Size Resizer
Barcode Scanner
Text to Handwriting
Object Eraser

Developer Tools

File Converter
JSON Formatter
Base64 Converter
Base32 Encoder/Decoder
ULID Generator
Semver Parser/Comparator
.env File Parser/Validator
Markdown Table Generator
CSS Grid Generator
CSS Flexbox Generator
Color Blindness Simulator
URL Encoder/Decoder
Hash Generator
Compare File Hashes
UUID Generator
Password Generator
Text Diff Checker
Word Counter
Case Converter
Markdown Previewer
Regex Tester
Lorem Ipsum Generator
Timestamp Converter
Color Picker & Palette Generator
JWT Decoder
YAML ↔ JSON Converter
Number Base Converter
CSS Minifier & Formatter
Slugify / URL Slug Generator
XML Formatter
SQL Formatter
Cron Expression Explainer
HTTP Status Code Lookup
User-Agent Parser
JSON ↔ CSV Converter
Remove Duplicate Lines
Sort Lines
Reverse Lines
Number Lines
Find and Replace
Remove Extra Spaces
Line Break Converter
Remove HTML Tags
HTML ↔ Text Converter
Random Word Generator
Word Frequency Counter
Palindrome Checker
Anagram Checker
Text Repeater
Unicode Character Inspector
Emoji Picker & Remover
Speaking Time Calculator
List Cleaner
JSON Diff
JSON ↔ XML Converter
JSON to TypeScript
JSON Schema Generator
HTML Entity Encoder/Decoder
Hex ↔ Text Converter
NanoID / Random ID Generator
HTML Minifier
JavaScript Minifier
Markdown ↔ HTML Converter
Regex Generator
Cron Expression Generator
CIDR / Subnet Calculator
URL & Query String Parser
MIME Type Lookup
Gradient Generator
WCAG Contrast Checker
Color Harmony Finder
CSS Box Shadow Generator
Border Radius Generator
Glassmorphism Generator
Neumorphism Generator
CSS Pattern Generator
Password Strength Checker
Passphrase Generator
Decision Maker
Random Name Picker
Random Team Generator
Meeting Time Planner
Pomodoro Timer
Attendance Calculator
Final Grade Calculator
Equation Solver
JSON to Java/Python
JSON Schema Validator
JSONPath Tester
XPath Tester
YAML Formatter
YAML ↔ XML Converter
Emoji Remover
SVG Background Generator
Certificate/CSR Decoder
Random Data Generator
Unicode Encoder/Decoder
Hex Encoder/Decoder
HTTP Header Parser
IP Address Converter
Port Number Lookup
Random Username Generator
CSS Clamp() Generator
Flowchart Maker
Mind Map Maker
Random Number Generator
Dice Roller
Coin Flip
Stopwatch
API Response Viewer
Cron Job Visualizer
Markdown to Slides
Sprite Sheet Generator
DNS Lookup
SSL Certificate Checker
WHOIS Lookup
Internet Speed Test

Data & Spreadsheet Tools

CSV Viewer
CSV Delimiter Converter
Pivot Table Generator
CSV Merger
CSV Splitter
Remove Duplicate Rows
Sort CSV
CSV Column Extractor
CSV Cleaner
CSV Statistics
Spreadsheet Column Letter Converter
Random Dataset Generator
SQL ↔ CSV Converter
Filter CSV
JSON Table Viewer
XML Table Viewer
CSV to Excel
Chart Maker
CSV Diff Checker

File Tools

Zip & Unzip Files
File Size Converter
File Type Detector
Duplicate File Finder
Batch File Renamer
File Extension Changer
Hex Viewer
File to Base64 Converter
File Metadata Viewer
GZIP Compressor
File Checksum Verifier
Archive Format Converter
File Preview Viewer
Batch File Compressor
Large File Splitter
File Joiner
EPUB Metadata Viewer
File Name Cleaner
File Encryptor / Decryptor

Business Tools

Games

Vocabulary

Vocabulary Match
Hangman
Idiom & Phrase Guesser
Synonym Sprint
Odd One Out
Word Association Chain
Word Root Breakdown
Connotation Sorter
Word Definition Match
Antonym Sprint
Word Frequency Guess
Etymology Trail
Collective Nouns Quiz
Portmanteau Builder
Rhyme Time Quiz
Word Association Sprint
Prefix & Suffix Quiz

Spelling

Speed Spelling Bee
Homophone Match
Missing Letter
Silent Letter Hunt
Audio Spelling Relay
Double Letter Detective
Misspelled Word Fixer
Plural Puzzler
Silent E Sorter
Syllable Count Challenge

Grammar

Commonly Confused Words
Parts of Speech Sort
Sentence Unscramble
Punctuation Placement
Tense Transformer
Apostrophe Patrol
Subject-Verb Agreement Race
Run-On Sentence Splitter
Preposition Picker
Active vs. Passive Voice Sort
Comma Splice Hunter

Reading

Speed Reading Comprehension
Context Clue Guesser
Fact or Opinion Sorter
Skim & Scan Challenge
Main Idea Sprint
Inference Detective
Speed Reading Ladder
Fact-Check Sprint
Sequencing Story Cards

Logic & Math

Mental Math Sprint
Number Sequence Solver
Unit Conversion Quiz
Roman Numeral Flash Cards
Number Grid Sums
Pattern Predictor
Quick Fractions
Order of Operations Duel
Prime Number Sprint
Logic Grid Mini
Estimation Challenge

Geography

Flag Guesser
Capital Cities Quiz
World Map Challenge
Capital-to-Country Match
Border Buddies
Time Zone Trivia
Currency Match
Landmark Locator
River & Mountain Quiz

Memory

Word Memory Match
Sequence Recall
Distraction Focus Test
Card Flip Match
Number Recall Ladder
Face-Name Recall
Simon Says Sequence
Grocery List Memory
Spot the Difference Memory
Reaction Time Test
Color-Word Stroop Test
Dual N-Back Lite
Mental Rotation Puzzle
Visual Search Challenge
Working Memory Span Test

Word Puzzles

Word Ladder
Daily Word Guess
Anagram Challenge
Word Chain
Crossword Mini
Word Search
Word Grid
Crossword Clue Writer
Pangram Finder
Cryptogram Solver
Compound Word Builder
Word Scramble Sprint

Daily Puzzles

Daily Trivia Challenge
Daily Math Puzzle
Daily Emoji Riddle
Daily Anagram Puzzle
Daily Word Grouping
Daily Riddle

Trivia

Science Trivia Quiz
History Trivia Quiz
Movie Trivia Quiz
Music Trivia Quiz
Sports Trivia Quiz
Pop Culture Trivia Quiz

Arcade

Whack-a-Mole
Bubble Pop Numbers
Balloon Pop Frenzy
Color Match Rush
Target Practice
Fruit Catcher

Guides

Finance & Loans

How EMI Is Actually Calculated (And Why Two Loans With the Same Rate Can Cost Different Amounts)
SIP vs. Lump Sum: Which Actually Grows Your Money Faster?
How Income Tax Slabs Actually Work (Your Whole Salary Isn't Taxed at One Rate)
Fixed Deposit vs. Recurring Deposit: Which Actually Grows Money Better?
How Mortgage Amortization Actually Works (Why Early Payments Are Mostly Interest)
XIRR vs. Simple Return: Why Your Investment Return Percentage Might Be Wrong
Debt Snowball vs. Debt Avalanche: Comparing the Math of Both Payoff Strategies
Rent vs. Buy: The Real Math Beyond "Rent Is Throwing Money Away"
How Credit Utilization Ratio Affects Your Credit Score
How NPS (National Pension System) Growth Actually Works
How Loan Prepayment Actually Reduces Total Interest (and Why Timing Matters)
What "In-Hand Salary" Actually Means vs. Gross Pay and CTC
How Student Loan Interest Accrues (and What Actually Drives Total Repayment)

PDF & Documents

How PDF Compression Actually Works (And Why Some PDFs Won't Shrink Much)
How to Merge PDFs Without Losing Quality or Bookmarks
"Flatten" a PDF vs. "Sign" a PDF: What's the Actual Difference?
Why OCR Sometimes Fails on Scanned PDFs (And How to Get Better Results)
Password-Protecting vs. Digitally Signing a PDF: The Real Difference
PDF to Word Conversion: What Breaks and Why (Tables, Columns, Fonts)
How to Reduce a PDF Below a Specific File Size Limit (Email, Upload Portals)
Redacting a PDF Properly vs. Just Drawing a Black Box
How to Extract a Table From a PDF Into Usable Data
Crop vs. Resize a PDF Page: What's the Real Difference?
How to Add Page Numbers That Survive Future Edits
Why a PDF Looks Different Across Viewers (Fonts, Embedding, Rendering)
Batch-Processing Many PDFs at Once: What's Actually Safe to Automate
How Digital Signatures Verify a Document Hasn't Changed
How to Organize a Long PDF (Bookmarks, Page Order) Before Sharing It Professionally

Images & Photos

JPG vs PNG vs WebP: Which Format Should You Actually Use?
How Image Compression Actually Works: Lossy vs Lossless Explained
Why Your Image Looks Pixelated When You Resize It Bigger
How Background Removal AI Actually Works (and When It Struggles)
The Right Image Size for Every Social Media Platform (and Why It Matters)
How to Compress an Image to a Specific File Size (for an Upload Limit)
HEIC Files Explained: Why iPhones Use It and How to Convert It Everywhere
What EXIF Data Reveals About Your Photos (and Why to Strip It Before Sharing)
How to Batch-Process Hundreds of Photos Without Losing Quality
Favicon and App Icon Sizes Explained: Why There Are So Many
How to Crop a Photo to a Specific Aspect Ratio Without Distorting It
SVG vs PNG vs JPG: When a Vector Format Actually Matters
How to Add a Watermark That's Hard to Remove (and Its Real Limits)
Making a Passport or ID Photo That Meets Official Requirements

Health & Fitness

Why BMI Doesn't Account for Muscle Mass (And What Body Fat Percentage Measures Instead)
How TDEE and Calorie Deficit Actually Work for Weight Loss
The Mifflin-St Jeor vs. Harris-Benedict BMR Formulas: Why They Give Different Numbers
How Heart Rate Training Zones Are Calculated From Your Max Heart Rate
Why One-Rep Max Formulas Are Estimates, Not Exact Numbers
How Much Water You Actually Need Per Day (Debunking the '8 Glasses' Rule)
Understanding Macros: Protein, Carbs and Fat Ratios Explained Simply
How Pregnancy Due Dates Are Actually Calculated (And Why They're Estimates)
What Waist-to-Height Ratio Tells You That BMI Doesn't
How Sleep Cycle Calculators Time Wake-Ups to Sleep Phases
Understanding Blood Pressure Numbers: Systolic vs. Diastolic, and What's 'Normal'
How VO2 Max Is Estimated Without a Lab Test
Understanding Cholesterol Numbers: LDL, HDL, and What the Ratios Mean
How Child Growth Percentiles Are Calculated and What They Actually Mean

Developer & Productivity Tools

JSON Formatting Explained: Why a Missing Comma Breaks Everything
What a UUID Actually Is (And Why It's Practically Guaranteed Unique)
Base64 Encoding Explained: It's Not Encryption
How Password Strength Is Actually Measured (Entropy, Not Just Length)
Regex 101: What Those Cryptic Symbols Actually Mean
Why Hashing Is One-Way (And What SHA-256 Is Actually Used For)
JWT Tokens Explained: What's Inside One (and Why You Shouldn't Put Secrets in the Payload)
CSS Grid vs Flexbox: When to Actually Use Each
Cron Expressions Explained: Reading That Cryptic Five-Field Syntax
What a CIDR Subnet Mask Actually Means in Plain English
HTTP Status Codes Explained Beyond Just 404 and 200
Semantic Versioning Explained: What Major.Minor.Patch Actually Signals
Why Timestamp/Epoch Time Is Stored as a Number (and How to Read One)
YAML vs JSON: Why YAML Exists When JSON Already Works

Time & Planning

How to Calculate Your Exact Age in Years, Months and Days (Why It's Not Just Subtraction)
How to Work Out the Number of Working Days in a Date Range
How Time Zone Conversion Actually Works (UTC Offsets vs. Daylight Saving)
How to Calculate Hours Worked From Clock-In and Clock-Out Times (Including Overnight Shifts)
Why Leap Years Exist and How the Leap Year Rule Actually Works
How to Add or Subtract Days, Months or Years From a Date Correctly
Moon Phase Calculations Explained: How They're Computed From a Reference Date
Counting Down to a Future Date or Event, and Why Time Zones Matter
Elapsed Time vs. Calendar Duration: What's the Actual Difference?
Why Day-of-Week Calculations Work for Any Date, Including Historical Ones
How to Calculate the Number of Days Between Two Dates Accurately
How to Plan a Meeting Across Multiple Time Zones Without the Math Getting Confusing
Anniversary and Birthday Countdown Math, Including Handling Feb 29 Birthdays
Time Card Rounding Rules Explained: Why Some Employers Round to the Nearest 15 Minutes

Business & Marketing

Margin vs. Markup: The Pricing Mistake That Costs Small Businesses Money
How Break-Even Point Actually Tells You When a Business Becomes Profitable
Understanding Customer Churn Rate and Why It's the Health Metric SaaS Businesses Watch Closest
ROAS vs. ROI in Ad Spend: What Each Number Actually Tells You
How GST/Sales Tax Is Actually Calculated on an Invoice
CAC and LTV Explained: The Two Numbers That Determine If a Business Model Works
Why NPV and IRR Matter More Than a Simple ROI Percentage for Big Investments
How Commission Structures With Tiers and Thresholds Are Calculated Correctly
Understanding MRR to ARR Conversion for SaaS Reporting
Burn Rate and Runway: How Startups Calculate How Long Their Cash Will Last
How Email Open Rate, CTR, and Click-to-Open Rate Differ (and Why It Matters)
Depreciation Methods Explained: Straight-Line vs. Others, in Plain English
Website Conversion Rate: What Counts as a "Good" Rate and Why It Varies
How to Calculate a Freelance Hourly Rate That Actually Covers Your Real Costs

Audio & Video

How Video Compression Actually Works (Codecs, Bitrate, and Resolution Explained)
Why a Vocal Remover Works on Some Songs (and Fails on Others)
Understanding Audio Bitrate: What 128kbps vs 320kbps Actually Means
How to Convert Video to GIF Without It Looking Terrible
Why Your Video Looks Different After Compressing It
Speech-to-Text Accuracy Explained: What Actually Affects It
Audio Normalization vs. Volume Boosting: They're Not the Same Thing
How Subtitle Timing Files (SRT/VTT) Actually Work
Why Screen Recordings Are Huge Files (and How to Shrink Them)
Audio Sample Rate and Channels Explained (Mono vs Stereo, When It Matters)
How Pitch-Shifting Audio Differs From Simply Speeding It Up
Understanding Video Frame Rate: 24fps vs 30fps vs 60fps
How Silence Detection and Removal Works in Podcast Editing
Video Aspect Ratios Explained: Why Vertical Video Became Standard for Social

Checklists

Moving & Home

Moving Checklist
Home-Buying Checklist

Wedding & Events

Wedding Budget Planner Checklist
New Baby Checklist

Career & Job

Job Interview Prep Checklist
New Job First-Week Checklist

Travel

Travel Packing Checklist
International Travel Checklist

Money & Budgeting

Emergency Fund Checklist
Debt Payoff Checklist
Monthly Budget Checklist
Car-Buying Checklist

Business & Freelance

Freelancer Tax Prep Checklist
New Business Launch Checklist
Employee Onboarding Checklist

Workflows

Multi-step workflows

Compress & Watermark PDF
Resize, Compress & Convert Image
Merge & Compress PDF
Watermark & Grayscale PDF
Extract & Compress PDF Pages
Images to Numbered PDF
PDF to Compressed JPGs
Rotate, Crop & Convert Image
Round Corners & Add Shadow to Image
Resize & Watermark Image
Compress & Convert Image
Batch Convert Images to WebP
Grayscale & Border Image
Trim & Convert Audio
Trim Video & Convert to GIF
Video Thumbnail & Compress
CSV to Formatted JSON

Sitemap

Calculators

Money

Business

Time and Date

Distance and Travel

Property

Construction

Health

Mathematics

Converters

Science and Engineering

Developer and Everyday Tools

International and Specialist

Everyday Tools