All Tools & Calculators
Our complete collection of free, privacy-first online tools.
Unit Converters
Convert between different units of measurement for length, weight, temperature, and more.
Length Converter
Easily convert between different units of length including centimeters, inches, feet, meters, and miles.
Area & Volume Converter
Convert between area units (m², ft², acre) and volume units (L, gal, m³) instantly.
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly.
Data Size Converter
Convert between bits, bytes, KB, MB, GB, TB, PB and IEC binary units (KiB, MiB, GiB).
Speed Converter
Convert between m/s, km/h, mph, knots, fps, Mach, and the speed of light instantly.
Fuel Efficiency Converter
Convert between MPG (US/UK), L/100km, km/L, and more fuel efficiency units.
CM to Inches
Convert Centimeters to Inches instantly with our fast online converter.
Inches to CM
Convert Inches to Centimeters instantly with precise results.
CM to Feet
Convert Centimeters to Feet instantly for height and measurements.
Feet to CM
Convert Feet to Centimeters instantly for height and measurements.
KM to Miles
Convert Kilometers to Miles instantly with our accurate converter.
Miles to KM
Convert Miles to Kilometers instantly with accuracy.
KG to LBS
Convert Kilograms to Pounds instantly with accurate results.
LBS to KG
Convert Pounds to Kilograms instantly with precision.
Gram to Ounce
Convert Grams to Ounces instantly using our precision weight converter.
Ounce to Gram
Convert Ounces to Grams instantly using our precision weight converter.
Celsius to Fahrenheit
Convert Celsius to Fahrenheit temperature instantly.
Fahrenheit to Celsius
Convert Fahrenheit to Celsius temperature instantly.
Celsius to Kelvin
Convert Celsius to Kelvin instantly for scientific calculations.
KM/H to MPH
Convert Kilometers per Hour to Miles per Hour instantly.
MPH to KM/H
Convert Miles per Hour to Kilometers per Hour instantly.
Finance Calculators
Calculate loans, EMI, interest, taxes, and manage your financial planning.
EMI Calculator
Calculate your Equated Monthly Installment (EMI) for home loans, car loans, and personal loans.
Loan Amortization Schedule
Generate a full monthly amortization table with interest, principal, and balance breakdown.
Loan Calculator
Calculate monthly loan EMI and total cost with processing fees.
Mortgage Calculator
Evaluate housing home loans including down payments.
Simple Interest Calculator
Compute straight-line simple interest yields.
Compound Interest Calculator
Calculate wealth growth over time with compound frequencies.
GST Calculator
Add or reverse GST tax for goods and services.
VAT Calculator
Calculate Value Added Tax (VAT) additions and reversals.
Discount Calculator
Determine the final sale price after applying a percentage discount.
Profit Margin Calculator
Calculate gross profit, margins, and markup percentages.
Salary Hike Calculator
Determine your new salary after a percentage increase.
Retirement Calculator
Estimate your savings balance when you retire.
Auto Loan Calculator
Calculate the true monthly cost of a car including trade-in and taxes.
ROI Calculator
Calculate Return on Investment (ROI) and annualized yields.
SIP Calculator
Calculate the future value of your Systematic Investment Plan.
Emergency Fund Calculator
Calculate how much you need to save for an emergency.
Credit Card Payoff Calculator
Calculate how long it will take to pay off your credit card.
Break-Even Calculator
Calculate the break-even point for your business products.
ROAS Calculator
Calculate your Return on Ad Spend (ROAS).
True Hourly Rate Calculator
Calculate the true hourly rate freelancers need to charge.
"Latte Factor" Investment Calculator
See how much wealth you could build by investing your daily habits.
Salary vs Freelance Calculator
Compare a salaried job offer to its equivalent freelance hourly rate.
Math Calculators
Perform mathematical operations including percentages, ratios, and fractions.
Number to Words Converter
Convert any number into its full English word representation.
Roman Numeral Converter
Convert between Arabic numbers and Roman numerals instantly in both directions.
Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law and the power formula.
Percentage Calculator
Calculate percentages, increases, and decreases instantly.
LCM & GCF Calculator
Calculate the Least Common Multiple and Greatest Common Factor of numbers.
Prime Number Checker
Check if a number is prime or composite instantly.
Ratio Calculator
Simplify ratios and find decimal equivalents.
Fraction & Decimal Converter
Convert between fractions and decimals seamlessly.
Scientific Notation Converter
Convert standard numbers into scientific standard format.
Random Number Generator
Generate random numbers with custom min, max, quantity, and uniqueness.
Base Converter (Radix)
Simultaneously convert a number between Decimal, Binary, Hex, and Octal.
Text Tools
Format, modify, count, and manipulate text strings instantly.
Word Counter
Count the number of words, characters, sentences, and paragraphs in your text instantly.
Character Counter
Count characters, letters, and spaces in your text in real-time.
Uppercase to Lowercase
Convert ALL CAPS text into perfectly lowercased words instantly.
Lowercase to Uppercase
Transform your text to ALL CAPS for emphasis and headers.
Title Case Converter
Format your text into proper Title Case for essays and headlines.
URL Slug Generator
Convert any text or title into a clean, SEO-friendly URL slug.
Lorem Ipsum Generator
Generate dummy text for your layouts and designs.
Morse Code Translator
Translate text to Morse Code and vice versa instantly.
Text Reverser
Instantly reverse any text string, words, or letters backwards.
Duplicate Line Remover
Remove all duplicate lines from a block of text, keeping only unique entries.
Reading Time Estimator
Paste any text to instantly calculate estimated reading time, word count, and more.
Text Case Randomizer
Randomize, alternate, invert, or SpongeBob-ify your text case instantly.
Reading & Speaking Time Estimator
Estimate exactly how long it takes to read or speak a text.
Image Tools
Resize, compress, convert, and format images entirely in your browser.
JPG to PNG Converter
Convert JPEG images to PNG format directly in your browser without uploading to a server.
PNG to JPG Converter
Quickly flatten PNG images with transparency into standard JPG files.
Image Resizer
Change the pixel dimensions of any image rapidly in your browser.
Image Compressor
Dramatically reduce image file sizes without noticeable quality loss.
Image to Base64
Extract the raw Base64 Data URL sting directly from an image file for inline HTML usage.
Color Tools
Pick colors, convert formats (HEX/RGB), and find color inspiration.
HEX to RGB Converter
Convert hexadecimal web color codes to RGB system values instantly.
RGB to HEX Converter
Convert standard red, green, blue color profiles into short hexadecimal codes.
Color Picker
Select dynamic colors and extract both HEX and RGB strings simultaneously.
CSS Gradient Generator
Create beautiful linear and radial CSS gradients with a live visual editor and instant code output.
Glassmorphism Generator
Generate the popular frosted glass CSS effect with blur, transparency, and border controls.
Color Palette Generator
Generate harmonious color palettes from any base color using color theory rules.
Developer Tools
Format JSON, encode/decode Base64, and help with daily developer tasks.
JSON Formatter
Format, validate, prettify, and minify your JSON data quickly.
Password Strength Checker
Analyze how secure your password is and generate a strong one instantly.
CSS Unit Converter
Convert between CSS units: px, rem, em, pt, vw, vh, cm, mm, and inches.
Binary ? Text Converter
Convert plain text to binary code and decode binary back to readable text.
Text to Binary Converter
Convert letters and strings into computer binary format.
QR Code Generator
Create and download customized QR codes for URLs, text, and contacts.
Hex ? ASCII Converter
Convert text to hexadecimal and decode hex strings back to readable ASCII text.
Regex Tester
Test regular expressions live with match highlighting, flags, and group capture support.
Color Palette Generator
Generate beautiful color palettes using color theory harmony rules from any base color.
Markdown Previewer
Write Markdown and see a live rendered preview side by side. Supports headings, lists, code, and more.
Markdown to HTML Editor
Live Markdown to HTML converter and editor.
CRON Expression Builder
Build, validate, and understand CRON expressions with a visual editor and human-readable descriptions.
JSON ? CSV Converter
Convert JSON arrays to CSV and CSV files back to JSON with type inference and file download.
Number System Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly with grouped display.
File Hash Checker
Generate and verify SHA-1, SHA-256, SHA-384, and SHA-512 hashes for files and text locally.
Aspect Ratio Calculator
Calculate aspect ratios, missing dimensions, and simplify ratios for any image or screen size.
UUID v4 Generator
Generate cryptographically secure Version 4 UUIDs instantly.
Hash Generator
Generate SHA-1, SHA-256, and SHA-512 cryptographic hashes.
JWT Decoder
Decode JSON Web Tokens (JWT) perfectly securely.
Text Diff Checker
Compare two blocks of text side-by-side to highlight differences.
URL Encoder / Decoder
Safely encode URI components or decode gibberish URLs into readable strings.
CSS Gradient Generator
Visual UI to design beautiful backgrounds, outputting perfect CSS gradient code.
Base64 Encoder / Decoder
Encode plain text into Base64 format or decode it back instantly.
CSS Glassmorphism Generator
Visually generate the frosted-glass CSS effect.
UTM Link Builder
Generate trackable campaign links for analytics.
Date & Time Tools
Calculate age, date differences, durations, and manage time.
Age Calculator
Calculate your exact age in years, months, and days based on your date of birth.
Age in Days & Hours
Find exactly how old you are in years, months, weeks, days, hours, and minutes.
Countdown Timer
Set a custom countdown with hours, minutes, and seconds. Pause, resume, and use quick presets.
Timezone Converter
Convert any date and time between world timezones. Includes a live clock mode and multi-zone comparison.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Shows a live current timestamp.
Date Difference Calculator
Find the exact chronological difference in years, months, and days between two historical or future dates.
Days Between Dates
Calculate the total absolute number of days between two dates.
Days Until Calculator
Calculate how many days are remaining until a specific future date.
Leap Year Calculator
Check if any year is a leap year and see upcoming leap years.
Time Duration Calculator
Calculate the exact hours, minutes, and seconds passed between two times.
Time Zone Meeting Scheduler
Visually find the "Golden Hours" for globally distributed teams.
Health Calculators
Calculate BMI, BMR, daily caloric needs, and physiological metrics.
BMI Calculator
Calculate your Body Mass Index (BMI) using metric or imperial measurements.
BMR & TDEE Calculator
Find your Basal Metabolic Rate and Total Daily Energy Expenditure.
Pregnancy Due Date Calculator
Estimate your baby's due date from your last period, conception date, or ultrasound.
Calorie Calculator
Calculate your daily calorie needs (BMR and TDEE) based on your activity level and weight goal.
Body Fat Calculator
Estimate your body fat percentage using the US Navy method or BMI-based formula.
Ideal Body Weight Calculator
Calculate your ideal body weight using four clinical formulas: Devine, Robinson, Miller, and Hamwi.
Water Intake Calculator
Calculate your recommended daily water intake based on body weight, activity level, and climate.
Macro Calculator
Calculate your optimal daily macronutrient intake — protein, carbohydrates, and fat — for your fitness goal.
Heart Rate Zone Calculator
Calculate your 5 training heart rate zones based on your age and optional resting heart rate.
Sleep Cycle Calculator
Find the best wake-up times or bedtimes based on 90-minute sleep cycles for optimal rest.
PDF Tools
Merge, convert, and inspect PDF files entirely in your browser. No uploads required.
PDF Merger
Merge multiple PDF files into one. Drag, drop, reorder, and download � everything runs in your browser.
Image to PDF
Convert JPG, PNG, and other images into a PDF. Choose page size, orientation, margins, and image fit.
PDF Metadata Viewer
Inspect any PDF file: view page count, dimensions, author, title, creation date and more � locally.
PDF Splitter
Extract specific pages from a PDF or split it into individual one-page files. Runs entirely in your browser.
PDF to Images
Convert each PDF page into a PNG or JPEG image.
PDF Password Remover
Remove password protection from your PDF files. Enter the known password and download an unlocked copy.
PDF to Text Extractor
Extract all raw text data from your PDF documents completely securely.
Everyday Tools
Practical tools and calculators for everyday life problems.
Tip & Split Calculator
Calculate the tip and split the bill evenly among friends.
Subscription Auditor
Audit your subscription costs and see how many hours you work to pay them.
Corporate Meeting Cost Timer
Real-time timer calculating the financial cost of a meeting.
Recipe Ingredient Scaler
Automatically scale recipe ingredients based on serving size.
Proportional Bill Splitter
Fairly distribute tax and tip based on exactly what each person ordered.
Road Trip Cost Calculator
Calculate gas costs and split the bill among passengers for a road trip.
Media Tools
Convert audio, record your screen or camera, and extract text from PDF files — all in your browser.