Free online tools that never see your data.

Estimate your monthly mortgage payment with taxes, insurance, PMI and HOA, see the full amortization schedule, and find out how much extra payments save.

Work out the monthly payment, total interest and payoff date for any personal, student or business loan, and see how extra payments shorten it.

Estimate your take-home pay after federal, state and FICA taxes for any US state, salary or hourly, with 2026 tax brackets and pre-tax deductions.

Estimate your monthly car payment including sales tax, trade-in, down payment and fees, and compare 36- to 84-month terms side by side.

See how savings or investments grow with compound interest and regular contributions, with a year-by-year chart and APY.

Convert an hourly wage to annual salary or a salary to hourly pay, with weekly, bi-weekly and monthly breakdowns for any schedule.

Find what percent one number is of another, calculate X% of a number, percentage increase or decrease, and the price after a discount.

Create a professional PDF invoice in a minute — line items, tax, discounts, any currency. No account, no watermark, and your data stays in your browser.

Find the date a number of days, business days, weeks or months from today or any date, or count the days between two dates.

Calculate your exact age in years, months and days, plus total days lived, the weekday you were born on, and days until your next birthday.

Calculate the tip and total for any bill, split it between any number of people, and round up to a clean total.

Calculate your body mass index in US or metric units, see your weight category, and find the healthy weight range for your height.

Convert length, weight, volume, temperature, area, speed and data units instantly — cm to inches, kg to lbs, ml to oz, °C to °F and more.

Convert any time between time zones — PST to EST, UTC to IST, GMT to AEST and more — with daylight saving handled automatically and an hour-by-hour table.

Count words, characters, sentences and paragraphs instantly, with reading time, keyword frequency and social media character limits.

Pretty-print, validate and minify JSON in your browser. Pinpoints syntax errors by line and column. Nothing is uploaded.

Generate lorem ipsum placeholder text by paragraphs, sentences or words, with optional HTML paragraph tags. Instant, free, copy with one click.

Encode text to Base64 or decode Base64 back to text, with full Unicode and URL-safe support. Runs in your browser — nothing is sent anywhere.

Percent-encode text for URLs and query strings, or decode encoded URLs back to readable text. Handles UTF-8 and the component vs full-URL distinction.

Compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text or file checksum, instantly in your browser. Nothing is uploaded.

Decode a JSON Web Token to see its header, payload and expiry time, without sending it anywhere. Highlights expired tokens and standard claims.

Compare two blocks of text or code and see added and removed lines highlighted side by side. Private, in-browser, with optional whitespace ignoring.

Create free QR codes for URLs, text, Wi-Fi, email, phone numbers and contact cards. Download as PNG or SVG. No sign-up, no expiry, no tracking.

Generate strong, random passwords up to 64 characters with letters, numbers and symbols. Created locally in your browser — never sent or stored.

Generate random numbers in any range with or without repeats, flip a coin, roll dice, or pick a random name from a list — all using cryptographic randomness.

Combine multiple PDF files into one, in any order, entirely in your browser. No upload, no file-size limit, no watermark, no sign-up.

Split a PDF into pages, extract a page range, rotate or delete pages, and reorder them by drag — all in your browser, with no upload.

Convert JPG, PNG, WebP and other images to a single PDF with A4, Letter or fit-to-image pages. Runs in your browser — no upload, no watermark.

Convert PDF pages to JPG or PNG images at 72, 150 or 300 dpi, all pages or a selected range, entirely in your browser. No upload.

Compress JPG, PNG and WebP images by up to 80% with an adjustable quality slider, in bulk, without uploading anything. Free, no limits.

Resize images by pixels, percentage or social-media preset — Instagram, YouTube, Facebook, passport — in bulk, in your browser, with no upload.

Convert WebP to JPG or PNG, PNG to JPG, JPG to WebP and more, in bulk, entirely in your browser. No upload, no limits, no watermark.

Convert iPhone HEIC photos to JPG, PNG or WebP in your browser — batch, no upload, no limits, orientation preserved. Works in Chrome, Edge, Firefox, Safari.

Calculate the square footage of rooms, floors, walls or land — rectangles, circles, triangles and L-shapes, added together — with cost per sq ft.

Work out how many cubic yards of concrete or how many 80, 60 or 40 lb bags you need for a slab, footing, column or stairs, with waste and cost.

Find out how many gallons of paint you need for a room or set of walls, accounting for doors, windows, coats, ceiling and paint coverage.

Calculate how many tiles and boxes you need for a floor or wall from the area, tile size and grout gap, with a waste allowance for cuts and breakage.

Calculate cubic yards, bags and weight of mulch, topsoil, gravel, crushed stone, river rock or sand for any area and depth, with bulk vs bagged cost.