Calculators, converters, and utility tools. No signup required.
Convert kg to lbs and oz
Convert lbs to kg and g
Encode/decode Base64
Convert JSON to CSV and back
Convert cm to inches
Convert Unix timestamps
Convert F to C and C to F
Convert fractions to decimals
Convert between color formats
Pick and convert colors
Convert decimals to fractions
Convert cooking measurements
Convert shoe sizes worldwide
Convert binary, decimal, hex
Encode/decode URLs
Encode/decode HTML entities
Compress and resize images
Crop, rotate & flip images
Convert images to/from Base64
Convert Roman numerals
Convert ASCII codes
Convert text case
Convert Markdown to HTML
Convert inches to cm and mm
Convert between px & rem units
Convert bytes to KB, MB, GB, TB
Convert times between timezones
Convert miles to km and back
Translate text to/from Morse code
Search & copy emojis
Convert MPG, L/100km, km/L
Convert timestamps with timezone support
Convert text between 12 case formats
Convert text to binary & back
Convert any unit instantly
Current time in cities worldwide
Convert between area units - sq ft, sq m, acres, hectares
Convert cups to milliliters for cooking and baking
Convert feet to meters and meters to feet
Convert HTML to Markdown format instantly
Remove or normalize whitespace in text
Convert dates to ISO 8601 format
Convert between UTF-8, ASCII, hex, Base64
Convert ounces to grams and grams to ounces
Convert between mph, km/h, m/s, fps, and knots
Convert SVG to PNG with custom size and background
Convert between ml, L, gal, cups, fl oz and more
Generate random UUIDs
Build CSS grid layouts visually
Generate secure passwords
Generate QR codes
Generate bulk QR codes
Random numbers, dice, coins & lottery
Flip a coin online
Generate XML sitemaps
Generate URL-friendly slugs
Roll dice online
Generate random placeholder images
Build flexbox layouts visually
Create Markdown tables visually
Generate hashes
Generate placeholder text
Generate SEO meta tags
Create and print invoices
Generate robots.txt files
Create CSS gradients visually
Generate CSS box shadows
Generate JWT tokens
Generate color palettes
Generate barcodes in multiple formats
Create HTML email signatures
Create tables & export as HTML, Markdown, CSV
Draw and sketch on a digital whiteboard
Generate audio tones at any frequency
Generate CSS border-radius code with visual editor
Generate favicons in all sizes from one image
Resize images with custom dimensions and formats
Shuffle lists and pick random items from entries
Spin wheel to pick random names
Minify or prettify SVG files to reduce size
Generate cron expressions visually
Generate placeholder images with custom sizes
Generate color palettes from images
Estimate blood alcohol level
Calculate days between dates
Calculate your GPA
Calculate work hours
Calculate percentages
Calculate your age
Loan amortization schedule
Add/subtract time
Calculate body fat percentage
Calculate BMI, weight, or height
Calculate tip, percentage, or bill
Split bills with tip among groups
Calculate running pace, time, or distance
Calculate paint needed for rooms
Calculate payment, amount, or term
Calculate mortgage payments
Calculate business days
Calculate daily calories
Calculate compound interest
Calculate concrete needed for your project
Calculate due date & track pregnancy
Calculate basal metabolic rate
Stopwatch with lap tracking
Estimate reading & speaking time
Calculate sales tax
Convert salary to hourly
Plan savings goals
Calculate speed, distance, or time
Calculate optimal sleep & wake times
Calculate your net worth
Calculate ideal body weight
Calculate average and statistics
Compare renting vs buying a home
Decode resistor color bands
Scientific calculator online
Calculate factorials
Calculate Fibonacci numbers
Calculate with binary numbers
Calculate Unix file permissions
Calculate heart rate training zones
Calculate daily macros & calories
Matrix operations & linear algebra
Countdown to any date
Calculate investment growth
Plan retirement savings
Calculate return on investment
Calculate inflation impact on buying power
Solve quadratic equations
Solve with graph & steps
Calculate probabilities & combinations
Advanced margin, markup & comparison
Calculate triangle sides
Calculate standard deviation
Calculate discounts & savings
Advanced pregnancy due date with milestones
Calculate profit margins
Calculate take-home pay after taxes & deductions
Focus timer with work/break cycles
Calculate screen PPI & density
Calculate loan APR
Calculate area & perimeter of shapes
Calculate aspect ratios
Calculate break-even point
Plan your debt payoff strategy
Calculate appliance electricity costs
Track appliance-level electricity usage
Calculate trip fuel costs
Calculate ovulation date and fertile window
Calculate subnets & IP ranges
Calculate federal income tax by bracket
Calculate total daily energy expenditure
Calculate daily water intake
Calculate 3D shape volume & surface area
Format & validate JSON
Minify or beautify CSS
Minify or beautify HTML
Parse cURL to GraphQL
Count characters and words
Check password strength
Count words and characters
Analyze text readability scores
Look up HTTP status codes
Test & learn regex patterns
Check if number is prime
Preview Markdown
View & analyze binary data
Find your public IP address instantly
Format & beautify SQL
Compare text differences
Parse cron expressions
Minify & beautify JavaScript
Decode JWT tokens
Validate & convert YAML
Test your typing speed & accuracy
Format & validate XML
Analyze and validate any IP address
Parse user agent strings to identify browser and device