ToolWorld
Simple Online Tools for Everyday Tasks — calculators, text utilities, developer tools, image editors, converters and generators, all running in your browser.
Popular Tools
The tools people reach for most.
Age Calculator
Find your exact age in years, months, days, hours and minutes from your date of birth.
Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
BMI Calculator
Calculate your Body Mass Index from height and weight, with metric and imperial units.
Loan Calculator
Estimate monthly payments and total interest on a loan from amount, rate and term.
Tip Calculator
Work out the tip amount and per-person split for any bill in seconds.
Word Counter
Count words, characters, sentences and paragraphs as you type or paste text.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase and snake_case.
JSON Formatter
Format, validate and beautify JSON with clear syntax highlighting and error messages.
Browse by Category
Find the right tool faster by starting from a category.
Calculators
Everyday maths, made instant
16 toolsText Tools
Count, clean and reshape text
15 toolsDeveloper Tools
Format, validate, encode
15 toolsImage Tools
Resize, compress, convert
10 toolsPDF & Document Tools
Work with PDFs and text files
10 toolsTime & Date Tools
Dates, timers and time zones
10 toolsUnit Converters
Convert any unit instantly
12 toolsGenerators & Utilities
Passwords, colors and QR codes
12 toolsRecently Added
Freshly built tools, ready to use.
Discount Calculator
Work out the final price and amount saved after applying a percentage discount.
BMR Calculator
Estimate your Basal Metabolic Rate — the calories your body burns at rest — using the Mifflin-St Jeor formula.
Simple Interest Calculator
Calculate simple interest and total payable amount from principal, rate and time.
Compound Interest Calculator
See how your investment grows over time with compound interest, including yearly breakdown.
Time Calculator
Add or subtract hours, minutes and seconds to calculate a resulting duration.
Date Difference Calculator
Find the exact number of days, weeks, months and years between two dates.
Average Calculator
Calculate the mean, median, mode and range of a list of numbers instantly.
Ratio Calculator
Simplify ratios or scale them up to find equivalent ratios and missing values.
Featured Tools
A handful of tools worth bookmarking.
Random Date Generator
Generate one or more random dates within a custom date range.
Hash Generator
Generate SHA-256, SHA-384 or SHA-512 hashes from text using your browser's built-in crypto engine.
Slug Generator
Turn any title or phrase into a clean, URL-friendly slug.
Random Number Generator
Generate one or more random numbers within a custom range, with optional uniqueness.
Sitemap Generator
Generate a valid sitemap.xml file from a list of URLs you paste in.
Barcode Generator
Generate a scannable barcode image from any number or text string.
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text by paragraphs, sentences or words.
Color Palette Generator
Generate harmonious color palettes from a base color or completely at random.
Why ToolWorld?
Privacy by default
Most tools run entirely in your browser — your text, files and images stay on your device.
No sign-up, ever
Open a tool and start using it immediately. No accounts, no email, no paywalls.
Built for everyday tasks
100 tools covering the calculations and conversions people actually search for.
Fast on any device
Lightweight pages and vanilla JavaScript keep every tool quick, even on slower connections.