53 new tools just added
Free online tools and calculators
107 simple calculators, converters, PDF, image, text and developer tools that work right in your browser, plus free games and skill tests. No sign-up, no downloads, and nothing you type is uploaded.
Popular shortcuts:🪄 AI background remover📑 Merge PDF🔎 Image to text🗜️ Compress image🔳 QR code🔢 Word count🏠 Mortgage
- 107 free tools
- 54 games & tests
- 0 sign-ups
- 100% in your browser
AI Background RemoverCut people out of photos automatically with an AI model that runs on your own device.Image to Text (OCR)Turn screenshots, photos and scans into editable text with private, in-browser OCR.PDF MergerJoin several PDF files into one, in the order you choose, without uploading them.AI Object DetectorSpot and label people, animals, vehicles and everyday objects in your photos.
🔥 Trending now
Editors’ picks, no tracking involvedFree · private · runs on your device
🤖 Free AI tools
No paid APIs and no uploads. Tools marked On-device ML run open-source models in your browser; Rule-based tools use fast built-in logic. We label each one honestly.
AI Background RemoverCut people out of photos automatically with an AI model that runs on your own device.On-device MLImage to Text (OCR)Turn screenshots, photos and scans into editable text with private, in-browser OCR.On-device MLAI Object DetectorSpot and label people, animals, vehicles and everyday objects in your photos.On-device MLFace Blur ToolHide faces in photos automatically before you share them, privately on your device.On-device MLImage UpscalerMake small images bigger and crisper with careful resampling and sharpening.Rule-basedText SummarizerShrink long text to its most important sentences in one click.Rule-basedParaphrasing ToolReword text in different tones, with every change highlighted.Rule-basedGrammar & Style CheckerCatch common grammar, spelling and punctuation slips, with one-click fixes.Rule-basedBusiness Name GeneratorGet dozens of brandable name ideas for your business, shop, app or channel.Rule-basedCaption GeneratorFind the right caption for your next post in seconds.Rule-basedHashtag GeneratorTurn a caption or a few keywords into a set of relevant hashtags.Rule-basedSpeech to TextType with your voice: live dictation in many languages, with copy and download.Browser APIText to SpeechListen to any text read aloud with natural voices, speed and pitch control.Browser API
Pick a tool category
AI toolsBackground remover, OCR, summarizer, captions11 toolsFinanceMortgage, loans, savings and tax16 toolsHealthBMI, calories, water and due date6 toolsMath & DatesPercentages, age and days between dates6 toolsTextCount words, title case, readability, emoji11 toolsDeveloperJSON, CSS, SQL, JWT, cron and regex14 toolsDesignGradients, shadows, palettes, contrast4 toolsConvertersUnits, time zones, meetings and Morse7 toolsGeneratorsPasswords, random numbers and dice6 toolsImageRemove backgrounds, crop, memes, favicons10 toolsPDFMerge, split, image and text to PDF4 toolsAudio & VideoRecord screen and voice, speech tools5 toolsUtilitiesQR codes, habits, timers and notepad7 toolsGamesChess, solitaire, puzzles and arcade49 toolsSkill TestsTyping, reaction, aim and memory5 tools
🎯 Daily challenge
A new game and goal every dayPopular this week
Our hand-picked favourites for this week.
✨ New tools
53 added this monthBackground Remover NewErase plain backgrounds and download a transparent PNG, without uploading anything.Image Cropper NewCrop photos to exact pixels or popular ratios, rotate or flip, and download instantly.Meme Generator NewAdd bold top and bottom captions to any picture and download your meme.Favicon Generator NewTurn a letter, emoji or logo into favicon.ico and every PNG icon size a website needs.Color Palette from Image NewPull the dominant colours out of any photo and copy their HEX codes.Aspect Ratio Calculator NewWork out a ratio like 16:9 and the matching width or height for any new size.Image to PDF Converter NewTurn photos, scans and screenshots into a single PDF, one image per page.PDF Merger NewJoin several PDF files into one, in the order you choose, without uploading them.PDF Splitter NewExtract pages, delete pages or split a PDF into separate files, privately.Text to PDF Converter NewTurn notes, letters and .txt files into a neatly formatted PDF.CSS Gradient Generator NewCreate smooth linear, radial and conic gradients and copy the CSS.Box Shadow Generator NewBuild realistic or playful CSS shadows with live preview and copy-ready code.
🤖 Free AI Tools
See all 11 →Background remover, OCR, summarizer, captions
AI Background Remover NewCut people out of photos automatically with an AI model that runs on your own device.Image to Text (OCR) NewTurn screenshots, photos and scans into editable text with private, in-browser OCR.AI Object Detector NewSpot and label people, animals, vehicles and everyday objects in your photos.Face Blur Tool NewHide faces in photos automatically before you share them, privately on your device.Image Upscaler NewMake small images bigger and crisper with careful resampling and sharpening.Text Summarizer NewShrink long text to its most important sentences in one click.Paraphrasing Tool NewReword text in different tones, with every change highlighted.Grammar & Style Checker NewCatch common grammar, spelling and punctuation slips, with one-click fixes.Business Name Generator NewGet dozens of brandable name ideas for your business, shop, app or channel.Caption Generator NewFind the right caption for your next post in seconds.Hashtag Generator NewTurn a caption or a few keywords into a set of relevant hashtags.
💰 Finance Calculators
See all 16 →Mortgage, loans, savings and tax
Mortgage CalculatorWork out your monthly mortgage payment, total interest and yearly balance in seconds.Loan EMI CalculatorFind the monthly installment (EMI) for any loan and see how much interest you will pay.Compound Interest CalculatorProject the future value of your savings or investments with compounding and regular deposits.Savings CalculatorProject your savings balance and find out how long it takes to hit a target amount.Retirement CalculatorCheck whether you are on track for retirement and how much extra to save each month.Sales Tax, GST & VAT CalculatorAdd tax to a price or remove it from a tax-inclusive total in one step.Discount CalculatorSee the final price after one or two discounts and tax, and how much you save.Salary & Hourly Wage CalculatorConvert any pay rate into hourly, weekly, monthly and annual figures.Inflation CalculatorFind out what today’s money will be worth, and what things will cost, after years of inflation.Tip CalculatorWork out the tip and each person’s share of the bill quickly.Profit Margin CalculatorUnderstand profit margin versus markup and find the right selling price.Unit Price Comparer NewWhich pack is really cheaper? Compare price per unit across sizes and multipacks.Loan Comparison Calculator NewCompare loan offers side by side and see which one really costs least.Savings Goal Planner NewWork out how much to save each month to hit your goal on time.Debt Payoff Planner NewFind the fastest, cheapest way to become debt-free.Fuel Cost Calculator NewFind out what a road trip will cost in fuel and split it fairly.
❤️ Health & Fitness
See all 6 →BMI, calories, water and due date
BMI CalculatorCalculate your BMI, see what category it falls in and find a healthy weight range for your height.Calorie Calculator (TDEE)Estimate how many calories your body burns each day and what to eat for your goal.Water Intake CalculatorEstimate your daily water needs from your weight, exercise and climate.Pregnancy Due Date CalculatorEstimate your due date, trimester milestones and how far along you are.Body Fat CalculatorEstimate your body fat percentage with just a tape measure.Sleep Cycle Calculator NewWake up between sleep cycles and feel more refreshed.
📅 Math & Dates
See all 6 →Percentages, age and days between dates
Percentage CalculatorSolve the four most common percentage problems instantly.Average CalculatorGet mean, median, mode, range and standard deviation for any list of numbers.Age CalculatorFind your exact age and how many days remain until your next birthday.Date Difference CalculatorCount the days, weeks, months and business days between any two dates.Countdown Timer to a DateCount down the days, hours, minutes and seconds to any event.GPA Calculator NewWork out your term and cumulative GPA and what you need to reach a target.
📝 Text Tools
See all 11 →Count words, title case, readability, emoji
Word CounterCount words, characters, sentences and paragraphs, and estimate reading time.Character CounterCount characters and see how close you are to common platform limits.Case ConverterChange the capitalization of any text to the style you need in one click.Lorem Ipsum GeneratorGenerate dummy text in paragraphs, sentences or words for your designs.Text Diff CheckerCompare two texts and see exactly what was added or removed.Remove Duplicate LinesClean a list by removing repeated lines, empty lines and extra spaces.Slug GeneratorConvert any title into a clean, SEO-friendly URL slug.Word Frequency Counter NewFind the most used words and phrases in any text, with counts and percentages.Readability Score Checker NewScore how easy your text is to read and find sentences to simplify.Title Case Converter NewCapitalise titles and headlines correctly for AP, APA, Chicago or MLA style.Emoji Picker NewSearch 1,300 emojis by name and copy them with one tap.
💻 Developer Tools
See all 14 →JSON, CSS, SQL, JWT, cron and regex
JSON Formatter & ValidatorBeautify, minify and validate JSON with clear error messages.Base64 Encoder & DecoderEncode or decode Base64 text with full Unicode support.URL Encoder & DecoderPercent-encode or decode URLs and inspect query parameters.UUID GeneratorCreate secure random UUIDs (GUIDs) one at a time or in bulk.Hash Generator (MD5, SHA-256)Create MD5 and SHA hashes of text or files without uploading anything.Regex TesterTest and debug regular expressions with live highlighting and capture groups.Color Picker & ConverterPick a color and convert it between HEX, RGB and HSL with a contrast check.CSS Minifier & Beautifier NewShrink CSS for faster pages, or format it so it is easy to read.HTML, CSS & JS Beautifier NewTurn minified or messy HTML, CSS and JavaScript into clean, readable code.SQL Formatter NewMake long SQL queries readable with clean indentation and uppercase keywords.Cron Expression Builder NewWrite cron schedules with confidence: see them in plain English with upcoming run times.JWT Decoder NewRead the header and claims inside any JWT, check expiry and verify HMAC signatures.JSON to CSV Converter NewConvert JSON to spreadsheet-ready CSV and CSV back to JSON in one place.Markdown to HTML Converter NewWrite in Markdown, see a live preview and copy clean, safe HTML.
✨ CSS & Design Tools
See all 4 →Gradients, shadows, palettes, contrast
CSS Gradient Generator NewCreate smooth linear, radial and conic gradients and copy the CSS.Box Shadow Generator NewBuild realistic or playful CSS shadows with live preview and copy-ready code.Color Contrast Checker NewTest whether text colours are readable and meet WCAG accessibility rules.Color Palette Generator NewBuild harmonious colour schemes from one colour, or roll random palettes.
🔄 Converters
See all 7 →Units, time zones, meetings and Morse
Unit ConverterConvert length, weight, temperature, volume, speed and area in one place.Time Zone ConverterConvert a time between zones and see it in cities around the world.Number to Words ConverterSpell out any number in English words, including cheque-style amounts.Roman Numeral ConverterConvert between numbers and Roman numerals in either direction.Binary, Hex & Decimal ConverterConvert numbers between binary, octal, decimal and hexadecimal in one step.Time Zone Meeting Planner NewFind a meeting time that works for everyone, wherever they are.Morse Code Translator NewTranslate to and from Morse code, then hear it or see it flash.
🎲 Generators
See all 6 →Passwords, random numbers and dice
Password GeneratorGenerate strong random passwords right in your browser.Random Number GeneratorGenerate one or many random numbers in any range.Random Name GeneratorGenerate random names for characters, test data and creative projects.Random PickerPaste a list and pick one or more random winners, or shuffle the order.Coin FlipFlip a fair coin, or many coins at once, and keep a running tally.Dice RollerRoll any combination of dice using standard dice notation.
🖼️ Image Tools
See all 10 →Remove backgrounds, crop, memes, favicons
Image ResizerResize any photo by pixels or percentage, entirely in your browser.Image CompressorShrink the file size of photos with adjustable quality, right in your browser.JPG to PNG & PNG to JPG ConverterConvert JPG to PNG, PNG to JPG, or either to WebP — in bulk and in your browser.WebP ConverterTurn JPG and PNG images into lightweight WebP files for faster pages.Background Remover NewErase plain backgrounds and download a transparent PNG, without uploading anything.Image Cropper NewCrop photos to exact pixels or popular ratios, rotate or flip, and download instantly.Meme Generator NewAdd bold top and bottom captions to any picture and download your meme.Favicon Generator NewTurn a letter, emoji or logo into favicon.ico and every PNG icon size a website needs.Color Palette from Image NewPull the dominant colours out of any photo and copy their HEX codes.Aspect Ratio Calculator NewWork out a ratio like 16:9 and the matching width or height for any new size.
📄 PDF Tools
See all 4 →Merge, split, image and text to PDF
Image to PDF Converter NewTurn photos, scans and screenshots into a single PDF, one image per page.PDF Merger NewJoin several PDF files into one, in the order you choose, without uploading them.PDF Splitter NewExtract pages, delete pages or split a PDF into separate files, privately.Text to PDF Converter NewTurn notes, letters and .txt files into a neatly formatted PDF.
🎙️ Audio & Video Tools
See all 5 →Record screen and voice, speech tools
Screen Recorder NewCapture your screen, a window or a tab as video with your voice, right in the browser.Voice Recorder NewRecord voice memos and audio clips in your browser and download them.Text to Speech NewListen to any text read aloud with natural voices, speed and pitch control.Speech to Text NewType with your voice: live dictation in many languages, with copy and download.Online Metronome NewKeep perfect time with an accurate metronome, accents and tap tempo.
🧰 Utilities
See all 7 →QR codes, habits, timers and notepad
Stopwatch & Countdown TimerA precise stopwatch with laps and a countdown timer with a sound alert.Online NotepadJot down notes that save automatically on your device, with no account needed.Pomodoro TimerStay focused with timed work sessions and regular short breaks.Decision WheelAdd your options, spin the wheel and let chance decide.Habit Tracker NewBuild good habits one day at a time, with streaks that keep you going.QR Code Generator NewCreate QR codes that never expire, with custom colours, in PNG or SVG.QR Code Scanner NewScan QR codes with your camera or from a picture, privately in your browser.
New games
All 49 games →NewSky Parkour 3DRun, jump and dodge your way across five floating obstacle courses in 3D, racing the clock for gold medals.NewCubelandA first-person block world with hills, caves, lakes and forests. Break blocks, build anything and watch the sun set.NewBlocky SandboxMake a blocky avatar with your own colours, hats and face, then explore a sunny island, find stars and build anything you like.NewGem TycoonGrow a gem factory from one dropper to a rainbow production line, buy upgrades with the cash it makes and rebirth for a bigger bonus.NewTurbo Kart RallySteer your kart through curves and hills, hit boost strips and race five rivals to the line.NewBlock World ExplorerWalk through a 3D world made of blocks, mine your way through walls and hunt for glowing crystals.
🎮 Free Online Games
See all 49 →Chess, solitaire, puzzles and arcade
2048Slide tiles, merge matching numbers and chase the 2048 tile.SudokuFill the 9×9 grid so every row, column and box contains 1 to 9.Tic-Tac-ToeClassic noughts and crosses against the computer or a friend.Memory MatchFlip cards, find matching pairs and clear the board in as few moves as you can.SnakeGuide the snake to the food without hitting the walls or your own tail.MinesweeperUncover every safe square without detonating a mine.Word GuessFind the hidden five-letter word in six guesses using colour clues.HangmanGuess the hidden word one letter at a time before you run out of tries.Block PuzzleFit shapes onto the board and clear full lines before you run out of space.Trivia QuizAnswer ten multiple-choice questions and see how much you really know.Block BuilderBuild anything you like from coloured blocks in a relaxing 2D sandbox.Gem Miner Idle ClickerTap to mine gems, buy upgrades and let your miners earn while you are away.Tower DefenseBuild towers beside the road and stop every wave before it reaches your base.Endless RunnerRun as far as you can, jumping crates and ducking drones as you go faster.Wing FlapTap to flap, glide through the gaps and try not to touch a thing.Pixel HopperRun and jump through three levels, collecting coins on the way to the flag.Tiny FarmPlant, water and harvest crops, sell them and grow your little farm.Space ShooterFly your ship, shoot waves of alien craft and collect power-ups to survive.ChessPlay a full game of chess against a computer opponent you can set from beginner to hard.CheckersClassic checkers against the computer or a friend, with forced jumps and kings.SolitaireThe classic card game for one: build the four suits from ace to king.Four in a RowDrop discs into the grid and be first to line up four of your colour.Paddle DuelBounce the ball past your opponent in a fast, classic paddle-and-ball duel.Block DropRotate falling blocks, fill whole rows and watch them vanish before the stack reaches the top.Word SearchHunt for hidden words across, down, diagonally and even backwards in themed letter grids.Daily Mini CrosswordA small, friendly crossword that changes every day, with unlimited practice puzzles in between.Gem SwapSwap sparkling gems to make lines of three and chain combos before the 60-second clock runs out.Brick BreakerKeep the ball bouncing with your paddle and smash every brick on the screen.Bubble ShooterAim, bounce off the walls and pop groups of three or more matching bubbles.Sliding PuzzleSlide numbered tiles around the empty space until they are back in order.Tile Match SolitaireMatch pairs of free picture tiles to clear a layered pyramid in this relaxing solitaire.Typing RaceYour car moves with every correct letter. Type fast and accurately to beat three rival racers.Maze RunnerEscape maze after maze before time runs out; each one is bigger than the last.Hoop ShotFlick basketballs into the hoop, chase swishes and streaks, and beat the 60-second clock.DartsAim for trebles and the bullseye in a nine-dart challenge on a realistic dartboard.ArcheryDraw your bow, read the wind and land ten arrows on targets at changing distances.Lake FishingDrop your line, wait for a bite and reel in fish without snapping the line.Mole BopBop the moles as they pop up, grab the golden stars and dodge the bombs.ReversiOutflank your opponent’s discs to flip them to your colour in this classic strategy game.Dots and BoxesJoin the dots, close boxes to claim them and take an extra turn every time you do.Block World ExplorerWalk through a 3D world made of blocks, mine your way through walls and hunt for glowing crystals.Turbo Kart RallySteer your kart through curves and hills, hit boost strips and race five rivals to the line.Astro QuestGuide a little astronaut through three pixel worlds full of coins, keys, spikes and critters.Worm ArenaSlither around a giant arena, eat glowing dots and outsmart nine computer worms.Crate QuestHelp a little robot push every crate onto its marker in thirteen tricky warehouse puzzles.Sky Parkour 3DRun, jump and dodge your way across five floating obstacle courses in 3D, racing the clock for gold medals.Blocky SandboxMake a blocky avatar with your own colours, hats and face, then explore a sunny island, find stars and build anything you like.Gem TycoonGrow a gem factory from one dropper to a rainbow production line, buy upgrades with the cash it makes and rebirth for a bigger bonus.CubelandA first-person block world with hills, caves, lakes and forests. Break blocks, build anything and watch the sun set.
⚡ Skill Tests
See all 5 →Typing, reaction, aim and memory
Typing Speed TestMeasure your typing speed in words per minute and your accuracy.Reaction Time TestClick as soon as the box turns green and see your reaction time in milliseconds.Aim TrainerClick moving targets for 30 seconds to test your aim and speed.Memory TestWatch the pattern, repeat it from memory, and see how many levels you can reach.Math Speed ChallengeAnswer as many mental-math questions as you can in 60 seconds.
Nothing matches that search. Try a shorter or simpler word, such as “tax”, “photo” or “game”.
Suggest a tool
Is there a calculator, converter or game you wish existed? Tell us in one line and we will think about building it. Every message is read by a person.
Latest how-to guides
- How to Calculate Compound Interest Monthly (With Examples) — Learn the monthly compound interest formula, see worked examples with and without monthly deposits, and check your numbers with a free calculator.
- How to Calculate EMI: Formula, Example and Tips — Learn the EMI formula for home, car and personal loans, work through a full example by hand, and see how rate and tenure change your monthly payment.
- How Much House Can I Afford? A Simple Step-by-Step Method — Work out a realistic home budget from your income, debts and down payment using debt-to-income ratios, then test it with a free mortgage calculator.
- How to Calculate Sales Tax (and Remove It From a Total) — Learn how to add sales tax, GST or VAT to a price, how to work backwards to the pre-tax amount, and the mistakes that give wrong answers.
- How to Convert an Hourly Wage to a Yearly Salary — Turn hourly pay into yearly, monthly and weekly salary (and back), with the 2,080-hour rule, quick mental shortcuts and the details that change the result.
- Profit Margin vs Markup: What’s the Difference? — Margin and markup use the same numbers but answer different questions. Learn both formulas, convert between them and price products correctly.
News in brief
- The Batman Part II Pauses Production for Family Matter · Entertainment
- Avengers: Endgame Retakes All-Time Box Office Record · Entertainment
- White Sox Beat Guardians, Lead ALDS 2-0 · Sports
- Braves Beat Dodgers 3-2 to Level NLDS · Sports
- France Score Four Late Goals to Beat Belgium 4-1 · Sports
About ViralScopeHub
ViralScopeHub is a free collection of calculators, converters, PDF, image, text, design, audio and developer tools, games and skill tests. Every page starts with a one-line explanation of how to use it, followed by a fuller guide and answers to common questions. Everything runs on your own device, so your numbers, text and photos stay private. The pages are light enough to work well on a slow mobile connection, and you can add the site to your home screen from your browser menu. The moon button at the top switches to dark mode.