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Every tool, category and guide on the site.
Free Online Calculators
- Percentage Calculator
- Percentage Change Calculator
- Percentage Increase Calculator
- Percentage Decrease Calculator
- Basic Calculator
- Scientific Calculator
- Fraction Calculator
- Ratio Calculator
- Average Calculator
- Standard Deviation Calculator
- Square Root Calculator
- Exponent Calculator
- LCM & GCF Calculator
- Prime Number Checker
- Discount Calculator
- Tip Calculator
- Unit Price Calculator
- Fuel Cost Calculator
- Quadratic Equation Solver
- Equation Solver
- Derivative Calculator
- Matrix Calculator
- Vector Calculator
- Logarithm Calculator
- Factorial Calculator
- Permutation & Combination Calculator
- Probability Calculator
- Sequence Calculator
- Series (Sigma) Calculator
- Fibonacci Calculator
- Z-Score Calculator
- Confidence Interval Calculator
- P-Value Calculator
- Effect Size Calculator (Cohen's d)
- Sample Size Calculator
- Linear Regression Calculator
- Area Calculator
- Circle Calculator
- Triangle Calculator
- Volume & Surface Area Calculator
- Pythagorean Theorem Calculator
Free Finance Calculators
- Loan & EMI Calculator
- Mortgage Calculator
- Credit Card Payoff Calculator
- Compound Interest Calculator
- Simple Interest Calculator
- SIP Calculator
- CAGR Calculator
- Savings Goal Calculator
- Inflation Calculator
- Salary Converter
- Take-Home Pay Calculator
- Retirement Calculator
- Net Worth Calculator
- Monthly Budget Planner
- Expense Tracker
- Subscription Cost Calculator
- Student Budget Calculator
- Rent Affordability Calculator
- Currency Formatter
- IBAN Validator
- SWIFT / BIC Code Checker
- Card Number Validator (Luhn)
Free Unit Converters
- Unit Converter
- Length Converter
- Weight Converter
- Temperature Converter
- Area Converter
- Volume Converter
- Speed Converter
- Data Size Converter
- Pressure Converter
- Energy Converter
- Roman Numeral Converter
- Number to Words Converter
- Time Converter
- Power Converter
- Frequency Converter
- Force Converter
- Torque Converter
- Density Converter
- Angle Converter
- Fuel Economy Converter
- Data Transfer Rate Converter
- Cooking Unit Converter
- Pixels to Print Size Converter
- Screen Size Calculator
- Clothing Size Converter
- Shoe Size Converter
- Paper Size Chart
- Decimal to Fraction Converter
- Scientific Notation Converter
- Number Formatter
Free Text Tools
- Word Counter
- Character Counter
- Reading Time Calculator
- Readability Checker
- Case Converter
- Title Case Converter
- camelCase & snake_case Converter
- Text Cleaner
- Remove Line Breaks
- Remove Duplicate Lines
- Remove Empty Lines
- Sort Lines
- Add Line Numbers
- Find and Replace
- Text Compare (Diff Checker)
- Reverse Text
- Text Repeater
- Lorem Ipsum Generator
- Morse Code Translator
- Essay Word Count Planner
- Shuffle Lines
- Add Prefix & Suffix to Lines
- Text Splitter & Joiner
- Text Length Limiter
- Phone Number Formatter
- Postal & ZIP Code Formatter
- Text to Binary Converter
- Text to Hex Converter
- Text to ASCII & Unicode Codes
- ROT13 & Caesar Cipher
- Unicode Character Inspector
- HTML to Plain Text
- Text to HTML Converter
- Text to CSV Converter
- Markdown Editor
- Username Generator
- Random Name Generator
- Emoji Translator
- Text Similarity Checker
- Text to ASCII Art
- Text to Speech
- Emoji Picker & Search
Free Developer Tools
- JSON Formatter
- JSON Validator
- JSON to CSV Converter
- CSV to JSON Converter
- JSON to XML Converter
- XML to JSON Converter
- YAML to JSON Converter
- JSON to YAML Converter
- JSON to TypeScript
- XML Formatter
- HTML Formatter
- CSS Formatter & Minifier
- JavaScript Formatter
- SQL Formatter
- Base64 Encoder & Decoder
- HTML Entity Encoder
- JWT Decoder
- UUID Generator
- Unix Timestamp Converter
- Regex Tester
- Cron Expression Parser
- Number Base Converter
- Markdown to HTML
- Chmod Calculator
- HTTP Status Codes
- JSON to C# Classes
- JSON to SQL Converter
- YAML Formatter & Validator
- CSV Viewer & Formatter
- JWT Generator
- Mock Data Generator
- Regex Explainer
- User Agent Parser
- .gitignore Generator
- Docker Compose Generator
- Git Command Helper
- IP Subnet & CIDR Calculator
- HTML to JSX Converter
- HTML to Markdown Converter
- TOML to JSON Converter
- YAML to CSV Converter
- Markdown Table Generator
- JSONPath Tester & Finder
- JSON Schema Generator
- Punycode Converter (IDN)
- Hex Viewer
- HTML Entities Reference
- Bitwise Calculator
- CSS Specificity Calculator
- CSS Units Converter
- Dockerfile Generator
- GitHub Actions Workflow Generator
- README Generator
- Changelog Generator
- Commit Message Generator
- package.json Generator
- .htaccess Generator
- Cookie Consent Banner Generator
- Mock API Response Generator
- HTTP Request Builder
- .env File Editor & Validator
Free Image Tools
- Image Compressor
- Reduce Image Size in KB
- Image Resizer
- Image Cropper
- Rotate & Flip Image
- Grayscale & Photo Filters
- Watermark Image
- Image Converter
- JPG to PNG
- PNG to JPG
- WebP to JPG
- WebP to PNG
- JPG to WebP
- PNG to WebP
- HEIC to JPG
- AVIF to JPG
- SVG to PNG
- Favicon Generator
- Image to Base64
- Image Color Picker
- Image Metadata (EXIF) Viewer
- Remove Image Metadata
- Photo Adjustments
- Image Noise Reduction
- Add Border & Rounded Corners
- Screenshot Annotator
- Image Dimensions & DPI Checker
- Duplicate Image Finder
- Passport & ID Photo Maker
- Bulk QR Code Generator
- QR Code Scanner
- Barcode Scanner
- SVG Viewer
Free PDF Tools
- Merge PDF
- Split PDF
- Delete PDF Pages
- Reorder PDF Pages
- Rotate PDF
- PDF to JPG
- PDF to PNG
- JPG to PDF
- PDF to Text
- Text to PDF
- Add Page Numbers to PDF
- Watermark PDF
- PDF Metadata Editor
- Sign PDF
- PDF Form Filler
- Add Text to PDF
- Annotate PDF
- Add Image to PDF
- Add Links to PDF
- Add Header & Footer to PDF
- Crop PDF
- Resize PDF Pages
- Add Margins to PDF
- Reverse PDF Pages
- Duplicate PDF Pages
- PDF Booklet Maker
- PDF N-Up & Contact Sheet
- PDF Poster Maker (Tile Pages)
- Document Scanner
- PDF to Markdown
- EML to PDF
- Extract Images from PDF
- PDF Thumbnail Generator
- PDF Info
- Compare PDFs
Free Audio Tools
Free File Tools
Free SEO Tools
Free Web & URL Tools
- QR Code Generator
- Wi-Fi QR Code Generator
- Barcode Generator
- URL Encoder & Decoder
- URL Parser
- UTM Link Builder
- Tracking Link Cleaner
- Domain Name Generator
- What's My Screen Resolution
- Social Media Image Resizer
- Social Media Banner Maker
- YouTube Thumbnail Maker
- Open Graph Image Generator
- Instagram Caption Formatter
- Social Media Character Counter
- Social Post Preview
Free Color & Design Tools
- Color Picker
- Color Converter
- Color Palette Generator
- Tints & Shades Generator
- Contrast Checker (WCAG)
- CSS Gradient Generator
- Box Shadow Generator
- Border Radius Generator
- Fluid Font Size (clamp) Generator
- Aspect Ratio Calculator
- Golden Ratio Calculator
- Type Scale Generator
- Glassmorphism CSS Generator
- Neumorphism CSS Generator
- CSS Button Generator
- Font Pairing Tool
- SVG Optimizer
- Flowchart Maker
- Mind Map Maker
- Timeline Maker
- CSS Animation Generator
- Cubic Bezier Easing Generator
- CSS Clip-Path Generator
- CSS Flexbox Generator
- CSS Grid Generator
- Design Token Converter
- SVG Path Editor
- Code Screenshot Generator
- Device Mockup Generator
- Color Blindness Simulator
- Placeholder Image Generator
Free Business Tools
- Invoice Generator
- Receipt Generator
- Quotation Generator
- Purchase Order Generator
- Profit Margin Calculator
- Markup Calculator
- VAT & Sales Tax Calculator
- Break-Even Calculator
- ROI Calculator
- Commission Calculator
- Timesheet & Hours Calculator
- Overtime Pay Calculator
- Bonus Calculator
- Employee Cost Calculator
- Meeting Cost Calculator
- Revenue Calculator
- Cash Flow Forecast Calculator
- Project Cost Estimator
- vCard to CSV Converter
- Resume & CV Builder
- Cover Letter Generator
- Job Application Tracker
- Portfolio Website Builder
- Business Card Maker
- Email Signature Generator
- Letterhead Maker
- Expense Report Generator
- Privacy Policy Generator
- Terms of Service Generator
Free Date & Time Tools
- Age Calculator
- Days Between Dates
- Add or Subtract Days
- Business Days Calculator
- Day of the Week Finder
- Week Number Calculator
- Time Calculator
- Time Zone Converter
- World Clock
- Online Stopwatch
- Countdown Timer
- Pomodoro Timer
- Leap Year Checker
- Date Format Converter
- Meeting Planner (Time Zones)
- Online Alarm Clock
- Study Timer
- Exam Countdown
- Presentation Timer
- Printable Calendar Generator
- Calendar Invite (.ics) Generator
- Weekly Planner
- To-Do List & Checklist
- Habit Tracker
- Assignment Planner
- Class Timetable Maker
- Daily Study Planner
- Project Planner (Gantt Chart)
- Thesis & Dissertation Planner
Free Password & Security Tools
Free Health & Fitness Calculators
Free Student, Science & Grade Calculators
- GPA Calculator
- Weighted Grade Calculator
- Final Exam Grade Calculator
- Marks Percentage Calculator
- CGPA to Percentage Converter
- Test Grade Calculator
- GPA Goal Planner
- Speed, Distance & Time Calculator
- Acceleration Calculator
- Force Calculator (F = ma)
- Momentum Calculator
- Energy Calculator
- Power Calculator
- Pressure Calculator
- Density Calculator
- Work Calculator
- Projectile Motion Calculator
- Gravitational Force Calculator
- Wavelength Calculator
- Frequency Calculator
- Interactive Periodic Table
- Molar Mass Calculator
- Chemical Equation Balancer
- Stoichiometry Calculator
- Mole Calculator
- Molarity Calculator
- Dilution & Concentration Calculator
- pH Calculator
- Ideal Gas Law Calculator
- Half-Life Calculator
- Ohm's Law Calculator
- Resistance Calculator
- Resistor Color Code Calculator
- Voltage Divider Calculator
- Capacitor Calculator
- Inductor Calculator
- Power Factor Calculator
- Coulomb's Law Calculator
- Beam Load Calculator
- Stress Calculator
- Strain Calculator
- Reynolds Number Calculator
- Punnett Square Calculator
- DNA Complement & Transcription Tool
- APA Citation Generator
- MLA Citation Generator
- Chicago Citation Generator
- Harvard Referencing Generator
- IEEE Citation Generator
- Reference List Generator
- BibTeX Generator
- Literature Review Matrix
Free Everyday Tools
- Random Number Generator
- Random Name Picker
- Random Team Generator
- Coin Flip
- Dice Roller
- Online Notepad
- Typing Speed Test
- Fuel Economy (MPG) Calculator
- EV Charging Cost Calculator
- Car Depreciation Calculator
- Parking Cost Calculator
- Distance Between Coordinates
- Bearing Calculator
- GPS Coordinate Converter
- Map Scale Calculator
Smart Text & AI Tools
Guides
- How to Reduce an Image to 100 KB Without Losing Too Much Quality
- How to Prepare Photos and Signatures for Online Application Forms
- JPG vs PNG vs WebP: Which Image Format Should You Use?
- How to Merge PDF Files (Without Uploading Them Anywhere)
- How to Convert PDF Pages to Images (JPG or PNG)
- How to Format JSON Correctly (and Fix the Errors That Break It)
- How to Convert CSV to JSON (and Back) Without Breaking Your Data
- What Is a Unix Timestamp? Epoch Time Explained
- How to Calculate Percentage Increase (and Decrease) — With Examples
- How to Calculate Loan EMI (Monthly Payment) — Formula and Examples
- How to Calculate Compound Interest (and How It Differs From Simple Interest)
- How to Calculate Reading Time for an Article or Speech
- How to Clean Up and Format Messy Text (From PDFs, Emails and Websites)
- How to Make a QR Code for Your Wi-Fi
- How to Check Color Contrast for Accessibility (WCAG)
- How to Create a Strong Password You Don't Have to Remember