Calculators, converters and file tools that work in your browser
54 free tools for money, health, images, PDFs and text. No sign-up and no uploads. Your files never leave your device.
- Files stay on your device
- Results as you type
- Free, without limits
Your tools
Tools you've saved or used recently on this device.
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- Mortgage Calculator Calculators
- Sales Tax & VAT Calculator Calculators
- Currency Converter Calculators
- Percentage Calculator Calculators
- Unit Converter Calculators
- Scientific Calculator Calculators
- HEIC to JPG Converter Image Tools
- Image Compressor Image Tools
- Merge PDF PDF Tools
- PDF to JPG Converter PDF Tools
- Compress PDF PDF Tools
- QR Code Generator Text & Developer Tools
Calculators
Finance, health and everyday calculators with clear explanations of how the numbers work.
- Mortgage Calculator Estimate your monthly mortgage payment including property tax, insurance, PMI and HOA fees, and see how extra payments shorten your loan.
- Loan Calculator Work out the monthly payment, total interest and total cost of any fixed-rate loan: personal loans, student loans and more.
- Auto Loan Calculator See your monthly car payment including sales tax, fees, your down payment and trade-in value.
- Compound Interest Calculator See how your savings or investments grow over time with compound interest and regular monthly contributions.
- Savings Goal Calculator Find out how much you need to save every month to reach a goal by a certain date, including interest.
- Salary to Hourly Calculator Convert between hourly, daily, weekly, monthly and yearly pay based on your actual working hours.
- Retirement Calculator See how much you could have at retirement, how long it will last, and how much you need to save each month.
- Credit Card Payoff Calculator Find out how long it takes to pay off a credit card balance, how much interest you will pay, and what payment clears it by a target date.
- Debt Payoff Calculator Plan how to pay off several debts and compare the snowball and avalanche methods side by side.
- Inflation Calculator See what money will be worth in the future, or what past prices equal today, at any inflation rate.
- ROI Calculator Calculate the return on an investment, the gain or loss, and the annualized return (CAGR) over any period.
- Sales Tax & VAT Calculator Add sales tax or VAT to a price, or work out the price before tax from a total that already includes it.
- Currency Converter Convert between 30 major currencies using daily reference exchange rates from the European Central Bank.
- BMI Calculator Calculate your body mass index in kilograms and centimeters or pounds and inches, and see your healthy weight range.
- Calorie Calculator Estimate how many calories you burn each day and how many to eat to maintain, lose or gain weight.
- Body Fat Calculator Estimate your body fat percentage from a few tape-measure measurements using the US Navy method.
- Pregnancy Due Date Calculator Estimate your baby's due date from the first day of your last period, and see how far along you are.
- Percentage Calculator Solve every common percentage problem: X% of a number, what percent one number is of another, and percentage increase or decrease.
- Age Calculator Find your exact age in years, months and days, plus total days lived and the countdown to your next birthday.
- Days Between Dates Calculator Count the days between two dates, including weeks, months and the number of working days.
- Unit Converter Convert between metric and imperial units for length, weight, temperature, volume, area and speed.
- Tip Calculator Work out the tip and the total, and split the bill evenly between any number of people.
- GPA Calculator Calculate your semester or cumulative GPA on the 4.0 scale from your letter grades and credit hours.
- Discount Calculator Work out the sale price and how much you save, including stacked discounts such as 30% off plus an extra 10%, and sales tax.
- Time Zone Converter Convert a date and time between any two time zones, with daylight saving time handled automatically and a world clock for major cities.
- Hours Calculator Calculate the hours and minutes between two times, subtract breaks, handle overnight shifts and work out pay from an hourly rate.
- Fuel Cost Calculator Estimate the fuel cost of a trip from the distance, your car’s fuel consumption and the fuel price, and split it between passengers.
- Scientific Calculator A full scientific calculator with trigonometry, logarithms, powers, roots, memory and calculation history.
- Random Number Generator Generate random numbers in any range, pick random names from a list, or shuffle a list, fairly and instantly.
- Roman Numeral Converter Convert numbers to Roman numerals and Roman numerals back to numbers, with a step-by-step breakdown.
- Stopwatch & Timer A stopwatch with lap times and a countdown timer with an alarm. Keeps time even when you switch tabs.
Image Tools
Convert, compress and resize images without uploading them. Everything runs in your browser.
- HEIC to JPG Converter Convert iPhone HEIC photos to JPG or PNG in seconds. Conversion happens in your browser, so your photos never leave your device.
- WEBP to PNG Converter Convert WEBP images to PNG, keeping full quality and transparency. Files are converted on your device.
- PNG to JPG Converter Convert PNG images to smaller JPG files with adjustable quality. Transparent areas become white.
- JPG to PNG Converter Convert JPG photos to lossless PNG images, one at a time or in a batch, right in your browser.
- Image Compressor Make photos smaller for email, websites and uploads. Pick the quality and see exactly how much space you save.
- Image Resizer Resize JPG, PNG and WEBP images to exact pixel dimensions or by percentage, keeping the aspect ratio.
- Image Cropper Crop photos by dragging a box or entering exact pixels, with presets for square, 16:9, 4:3 and more.
- Rotate & Flip Image Rotate photos 90° or 180° and flip them horizontally or vertically, then download them in their original format.
PDF Tools
Merge, split and convert PDF files privately. Your documents never leave your device.
- Merge PDF Combine several PDF files into one document in the order you choose. Your files are processed in your browser and never uploaded.
- Split PDF Extract a range of pages into a new PDF, or split every page into its own file. Nothing is uploaded.
- JPG to PDF Converter Turn JPG, PNG and other images into a single PDF, one image per page, in the order you choose.
- PDF to JPG Converter Convert every page of a PDF into a high-quality JPG image. Download pages one by one or all together as a ZIP.
- Compress PDF Make PDF files smaller by recompressing their pages as images. Ideal for scanned documents and email attachments.
- Rotate PDF Rotate all pages of a PDF, or just the ones you choose, and save the result. Nothing is uploaded.
- Add Page Numbers to PDF Number the pages of a PDF, choosing the position, format, size and starting number.
Text & Developer Tools
Count words, change text case, format JSON, create QR codes and strong passwords, all instantly in your browser.
- Word Counter Count words, characters, sentences and paragraphs as you type, with reading and speaking time estimates.
- Case Converter Change text to uppercase, lowercase, title case, sentence case, camelCase, snake_case and more in one click.
- Lorem Ipsum Generator Generate lorem ipsum placeholder text by paragraphs, sentences or words, as plain text or HTML, and copy it in one click.
- JSON Formatter & Validator Format, validate and minify JSON. Errors are shown with their exact line and column.
- Base64 Encoder & Decoder Encode text to Base64 or decode Base64 back to text, with full Unicode support and URL-safe mode.
- QR Code Generator Create QR codes for links, text, Wi-Fi and contact details. Download as PNG or SVG; codes never expire.
- Password Generator Generate strong random passwords and passphrases with the length and characters you choose.
- Color Converter Pick a color and convert it between HEX, RGB and HSL, with tints, shades and a contrast check.
Guides
All guides- How to merge PDF files on Windows, Mac, iPhone and Android The quickest ways to combine PDFs into one file on every device, without installing anything or uploading private documents.
- How to reduce PDF file size for email and upload forms Why some PDFs are huge, which ones can be shrunk, and how to get under common size limits without making them unreadable.
- How to pay off credit card debt faster Why minimum payments keep you in debt for years, and six practical steps that cut the time and the interest you pay.