106 Free Online Tools

Calculators, converters, image and PDF tools and more. No sign-up, no install, on desktop and mobile.

🔥 Popular tools

🔤Word CounterFree word and character counter: words, characters with and without spaces, lines, paragraphs and reading time, updated as you type.★Special CharactersCopy and paste over 1,000 special characters and text symbols: hearts, stars, arrows, check marks, math, currency, Greek letters, box drawing and kaomoji. Tap to copy.📆Days Until CalculatorCount the days until any date or the days since it, with weeks and months, a countdown list and milestones like 100 days, 1,000 days and anniversaries.🎂Age CalculatorCalculate your exact age in years, months and days from your date of birth, plus days until your next birthday, days and weeks lived, Chinese zodiac and star sign.🗓️Date CalculatorAdd or subtract days, weeks, months or years from a date, and count the days between two dates in weeks, months, weekdays and weekends.⏲️Online TimerFree online countdown timer: set minutes and seconds, get an alarm sound when time is up, and show it full screen. Keeps accurate time in background tabs.⏱️Online StopwatchFree online stopwatch accurate to 1/100 second. Record lap and split times, see your fastest and slowest lap, and go full screen.％Percentage CalculatorFree percentage calculator: find X% of a number, what percent one number is of another, percentage increase or decrease, and add or subtract a percentage.🏦Loan CalculatorFree loan and mortgage calculator: monthly payment and total interest for equal-payment (amortizing), equal-principal and interest-only loans, with a full amortization schedule.📉Stock Average CalculatorFree stock average calculator: find your new average cost per share after buying more, see profit and loss at the current price, and how many shares you need to reach a target average.🧾VAT CalculatorAdd VAT to a net price or remove VAT from a gross price at any rate (20%, 15%, 10%, 5%…). Net, tax and gross at once, plus a line-item calculator for quotes and invoices.💱Currency ConverterFree currency converter with daily mid-market exchange rates. Convert US dollars to euros, pounds, yen, pesos and 20+ other currencies instantly.

📝 Text View all

🔤Word CounterFree word and character counter: words, characters with and without spaces, lines, paragraphs and reading time, updated as you type.AaCase ConverterConvert text to uppercase, lowercase, sentence case, title case, camelCase, snake_case, kebab-case and more at once. Click any result to copy it.↩️Remove Line BreaksRemove unwanted line breaks and extra spaces from text copied from PDFs, emails or websites, while keeping paragraphs. Free and instant.🧹Remove Duplicate LinesRemove duplicate lines from any list in one click and see how many lines were removed and which entries were repeated. Order is preserved.🔍Text CompareCompare two texts and highlight what was added, deleted or changed, by line, word or character. Free online diff checker that runs in your browser.🔃Sort LinesSort lines of text alphabetically (A–Z or Z–A), by number or by length, reverse the order or shuffle a list. Natural sort, remove duplicates and empty lines.★Special CharactersCopy and paste over 1,000 special characters and text symbols: hearts, stars, arrows, check marks, math, currency, Greek letters, box drawing and kaomoji. Tap to copy.😀Emoji Copy and PasteSearch 1,800+ emojis by keyword and tap to copy: smileys, hearts, animals, food, flags and more. Skin tones and recently used emojis included.

📅 Date & Time View all

📆Days Until CalculatorCount the days until any date or the days since it, with weeks and months, a countdown list and milestones like 100 days, 1,000 days and anniversaries.🎂Age CalculatorCalculate your exact age in years, months and days from your date of birth, plus days until your next birthday, days and weeks lived, Chinese zodiac and star sign.🗓️Date CalculatorAdd or subtract days, weeks, months or years from a date, and count the days between two dates in weeks, months, weekdays and weekends.⏱️Time CalculatorAdd or subtract hours, minutes and seconds, total a list of durations, and work out hours worked from clock-in and clock-out times with breaks, overtime and night hours.🌍World ClockSee the current local time in New York, London, Tokyo and 80 other cities next to your own time, with daylight saving time handled automatically and a time zone converter for meetings.🐉Chinese Zodiac CalculatorEnter your date of birth to find your Chinese zodiac animal and element (based on the exact Lunar New Year date) and your Western star sign.📅Day of the Week CalculatorFind the day of the week for any date from 1000 to 9999, plus the ISO and US week number, day of the year, quarter and a month calendar.⏲️Online TimerFree online countdown timer: set minutes and seconds, get an alarm sound when time is up, and show it full screen. Keeps accurate time in background tabs.⏱️Online StopwatchFree online stopwatch accurate to 1/100 second. Record lap and split times, see your fastest and slowest lap, and go full screen.🍅Pomodoro TimerFree online Pomodoro timer: 25 minutes of focus, 5-minute breaks and a long break every 4 sessions, switched automatically. Tracks today’s focus time.⏰Online Alarm ClockFree online alarm clock: set an alarm for any time and your browser plays a sound. Multiple alarms, daily repeat and 5-minute snooze, saved on your device.🏋️Interval TimerFree online interval timer for HIIT, Tabata and circuit training. Set work, rest, sets and rounds; colors and beeps tell you when to switch.

💰 Finance View all

％Percentage CalculatorFree percentage calculator: find X% of a number, what percent one number is of another, percentage increase or decrease, and add or subtract a percentage.🏦Loan CalculatorFree loan and mortgage calculator: monthly payment and total interest for equal-payment (amortizing), equal-principal and interest-only loans, with a full amortization schedule.📉Stock Average CalculatorFree stock average calculator: find your new average cost per share after buying more, see profit and loss at the current price, and how many shares you need to reach a target average.🌱Compound Interest CalculatorFree compound interest calculator with monthly contributions: see how your savings or investments grow year by year, with a chart, a yearly table and the Rule of 72.🧾VAT CalculatorAdd VAT to a net price or remove VAT from a gross price at any rate (20%, 15%, 10%, 5%…). Net, tax and gross at once, plus a line-item calculator for quotes and invoices.🏷️Discount CalculatorWork out the sale price after a percentage off, the discount percentage from two prices, stacked discounts like 20% + extra 10%, and the real price per item in BOGO deals.💱Currency ConverterFree currency converter with daily mid-market exchange rates. Convert US dollars to euros, pounds, yen, pesos and 20+ other currencies instantly.🍻Bill SplitterSplit a bill evenly, round each share up, adjust for people who pay less or more, and settle group expenses with the fewest payments.💁Tip CalculatorFree tip calculator: enter the bill, choose 15%, 18%, 20% or a custom tip and split it between any number of people. Handles sales tax and rounding up.

🔢 Math View all

🧮CalculatorFree online calculator for addition, subtraction, multiplication, division and percentages. Correct order of operations, keyboard support and a saved calculation history.📊Scientific CalculatorFree online scientific calculator with sin, cos, tan, inverse trig, log, ln, square roots, powers, factorials, π and e. Degrees or radians, live preview and history.½Fraction CalculatorFree fraction calculator for fractions and mixed numbers. Get the answer in simplest form, as a mixed number and as a decimal, with step-by-step working.📏Average CalculatorPaste a list of numbers to get the mean, median, mode, min, max, range, variance and standard deviation (population and sample). Weighted average included.🔗GCD and LCM CalculatorFind the greatest common divisor (GCF/HCF) and least common multiple of two or more numbers, with prime factorization steps and the list of common factors.🧩Prime Factorization CalculatorFind the prime factorization of any number up to 2⁵³−1, with exponents, the list of all factors, the number and sum of divisors, and a prime check.💾Number Base ConverterConvert between binary, octal, decimal and hexadecimal instantly, or any base from 2 to 36. Handles huge numbers exactly and shows two’s complement for negatives.ⅫRoman Numeral ConverterConvert numbers to Roman numerals (I, IV, IX, MMXXVI…) and Roman numerals to numbers, with a place-by-place breakdown and error hints.⚖️Ratio CalculatorSolve a : b = c : x proportions, split an amount in a ratio such as 2:3:5, and simplify ratios with decimals or fractions to whole numbers. Free, with working shown.🎯Rounding CalculatorRound numbers to any decimal place or to the nearest 10, 100 or 1,000. Round half up, round up or round down (truncate) with exact decimal math.

📏 Unit Converters View all

❤️ Health View all

⚖️BMI CalculatorFree BMI calculator for adults: enter your height and weight in feet/inches and pounds or cm and kg to get your body mass index, WHO weight category and healthy weight range.🔥BMR CalculatorCalculate your basal metabolic rate (Mifflin-St Jeor), your total daily energy expenditure and calories to lose or gain weight, with a macro split. Pounds and feet or kg and cm.💪Body Fat CalculatorEstimate your body fat percentage from neck, waist and hip measurements (U.S. Navy formula), plus fat mass and lean body mass. Inches and pounds or cm and kg.🤰Due Date CalculatorCalculate your baby’s due date from the first day of your last period, see how many weeks pregnant you are, your trimester and key prenatal milestones.🌸Ovulation CalculatorFind your most fertile days: estimated ovulation date, fertile window and next period, shown on a 3-month calendar based on your cycle length.😴Sleep CalculatorFind the best time to go to bed or wake up based on 90-minute sleep cycles, so you wake up between cycles and feel refreshed.💧Water Intake CalculatorFind out how much water to drink per day based on your weight, exercise and heat, in ounces, glasses and bottles – plus a simple daily water tracker.🏃Calories Burned CalculatorEstimate calories burned by walking, running, cycling, swimming, jump rope and 35+ activities from your weight and time, using MET values – with food equivalents.

🎲 Random & Fun View all

🪜Ladder Game (Amidakuji)Free online ladder game (Amidakuji): enter names and prizes, tap a name and watch the animated path. 2–12 players, fair random draws for coffee runs, chores and turns.🎡Wheel SpinnerFree spin-the-wheel picker: type your options, set weights and colors, and spin to choose one at random. Share your wheel with a link. Great for giveaways, classrooms and dinner.🎟️Draw LotsDraw lots online: set the number of lots and winners, then flip cards one by one to see who wins. Custom prizes and roles, up to 100 lots, fair and random.👥Random Team GeneratorPaste a list of names and split them into random, balanced teams by number of teams or people per team. Optional team captains and fun team names. Free and private.🪑Seating Chart MakerMake a random seating chart for your classroom or office: set rows and columns, paste names, lock seats, mark empty desks and print the chart. Free, nothing uploaded.🎲Dice RollerRoll 1 to 6 virtual dice online with totals and history. Supports D4, D6, D8, D10, D12 and D20 for board games and tabletop RPGs. Fair crypto randomness.🪙Coin FlipFlip a coin online: heads or tails with a 3D coin toss, plus counts, percentages and streaks. Flip 10 or 100 at once and rename the sides to decide anything.🔢Random Number GeneratorGenerate random numbers between any min and max: one or many, with or without repeats, sorted, or drawn one by one without replacement. Uses crypto randomness.⚡Reaction Time TestTest your reaction time online: tap the moment the screen turns green. Get your 5-round average in milliseconds, a grade and a rough percentile. Works on phone and PC.🖱️CPS TestFree CPS test: click as fast as you can for 1, 5, 10 or 30 seconds and see your clicks per second, a rank and your best score per mode. Works with mouse and touch.⌨️Typing Speed TestFree typing test: type short sentences and see your words per minute (WPM) and accuracy live. No sign-up, works on desktop and mobile.

🖼️ Image View all

🗜️Image CompressorCompress JPG, PNG, WebP and HEIC images in your browser without uploading them. Batch compress photos, compare before and after, download as ZIP.📸HEIC to JPG ConverterConvert HEIC and HEIF photos from your iPhone to JPG or PNG right in your browser. Batch convert and download as ZIP. No upload, free.🔄Image ConverterConvert PNG, JPG, WebP, GIF, BMP and HEIC images to JPG, PNG or WebP in your browser. Batch convert and pick a background color for transparency.↔️Image ResizerResize images by pixels or percentage, or to Instagram and YouTube sizes. Batch resize photos in your browser without uploading them.✂️Image CropperCrop images to a square, 4:3, 16:9 or a free area, rotate and flip, and save as JPG, PNG or WebP. Works in your browser, no upload.🔲Blur & Pixelate ImagePixelate, blur or black out faces, license plates, addresses and personal details in a photo. Drag a box or use a brush. Nothing is uploaded.🧷Merge ImagesCombine several photos into one image, stacked vertically or side by side. Set order, spacing and background color. Works in your browser.🎞️GIF MakerTurn photos into an animated GIF. Set the frame delay, size and loop, preview it live and download. Free, no upload, no watermark.⭐Favicon GeneratorMake a favicon from an image, letters or an emoji. Get favicon.ico, 16–512px PNGs, Apple touch icon, web manifest and HTML code in one ZIP.🎨Image Color PickerClick anywhere on an image to get its HEX, RGB and HSL color code, and extract a palette of the main colors automatically. Free, no upload.

📄 PDF View all

📑Merge PDFCombine multiple PDF files into one PDF in the order you want. Free, no sign-up, no watermark — files never leave your device.✂️Split PDFExtract pages from a PDF or split it into several files by page range or one page per file. Free, with page previews — files never leave your device.🖼️JPG to PDF ConverterConvert JPG and PNG images into a single PDF in your browser. Reorder pages, choose Letter, A4 or fit-to-image, and set margins. No upload, no sign-up.🗂️PDF to JPG ConverterConvert every page of a PDF to a JPG or PNG image in your browser. Choose the DPI, save single pages or download all as a ZIP. No upload.

🔧 Utilities View all

🔳QR Code GeneratorCreate free QR codes that never expire for links, Wi-Fi, contacts (vCard), email and SMS. Add colors and a logo, then download PNG or SVG. No sign-up.▥Barcode GeneratorFree online barcode generator for UPC-A, EAN-13, EAN-8, Code 128, Code 39 and ITF-14. Check digits calculated automatically. Download PNG or SVG.🔐Password GeneratorFree strong password generator: choose length, uppercase, lowercase, numbers and symbols, or create memorable passphrases. Shows strength and entropy. Runs in your browser.💡LED BannerTurn your phone into a scrolling LED sign for concerts, airport pickups and birthdays. Pick colors, speed and direction, then go full screen. No app needed.📝Online NotepadA free online notepad that autosaves in your browser. Keep several notes, see word and character counts, and download any note as a .txt file. No sign-up.✅Online ChecklistMake a checklist or to-do list online, tick items off and track progress. Free packing list templates for trips, travel abroad, moving and camping. Saved automatically, printable.🖥️Dead Pixel TestFree full-screen dead pixel test: cycle through black, white, red, green, blue and gray to find dead, stuck and hot pixels, backlight bleed and OLED burn-in.🎙️Mic TestTest your microphone in the browser: see a live volume meter and waveform, pick the right mic and record 5 seconds to hear how you sound. Nothing is uploaded.📷Webcam TestFree online webcam test: see if your camera works, measure its real resolution and frame rate, switch cameras and take a snapshot. Nothing is uploaded.⌨️Keyboard TesterTest every key on your keyboard online. Pressed keys light up on a full-size layout so you can find dead or chattering keys and check key rollover.🌐What Is My IPSee your public IP address instantly, IPv4 or IPv6, plus your browser, operating system, time zone and screen details. One click to copy.📐What Is My Screen ResolutionCheck your screen resolution, browser window (viewport) size, device pixel ratio and real physical pixels instantly. Updates live as you resize.

💻 Developer View all

{ }JSON FormatterFree online JSON formatter and validator: beautify or minify JSON, sort keys, browse it as a tree and see the exact line and column of syntax errors.🔣Base64 Encoder / DecoderFree Base64 encoder and decoder: convert text (UTF-8) and files to Base64 and back, with URL-safe mode, Data URLs and image preview. Runs in your browser.🔗URL Encoder / DecoderFree URL encoder and decoder: percent-encode text and URLs (encodeURIComponent or encodeURI), decode %XX strings and split a URL into host, path and query parameters.🆔UUID GeneratorFree online UUID generator: create up to 100 random UUID v4 or time-ordered UUID v7 at once, as uppercase, without hyphens or as GUID with braces. Validate and decode any UUID.#️⃣Hash GeneratorCalculate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files up to 1 GB, with HMAC and checksum comparison. Runs in your browser – files are never uploaded..*Regex TesterFree online regex tester: live match highlighting, capture and named groups, replace preview and ready-made patterns for email, phone, URL and ZIP codes.🕐Unix Timestamp ConverterConvert Unix timestamps (seconds, milliseconds, microseconds) to a readable date in your time zone and UTC, and dates back to epoch time. Live current timestamp included.🎨Color ConverterConvert colors between HEX, RGB, HSL, HSV and CMYK, pick a color, add transparency and check WCAG contrast ratios with tints and shades.🌈CSS Gradient GeneratorCreate linear, radial and conic CSS gradients visually: drag color stops, set the angle, start from presets and copy the CSS code.🗓️Cron Expression ParserPaste a cron expression to see what it means in plain English and the next 10 run times in your time zone. Includes a field-by-field cron builder.