All your everyday tools, in one place.

UtilityHub is a free collection of 212 fast, private tools for text, code, images, conversions, calculators and more — no sign-up, and nothing ever leaves your browser.

Showing 212 tools

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Popular tools

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🗂️JSON FormatterValidate, beautify and minify JSON.🛡️Password Strength TestCheck how strong a password is & why.🔡Base64 Encode/DecodeConvert text to and from Base64.🔳QR Code BuilderQR codes for URLs, WiFi, contacts & text.⚖️BMI CalculatorBody-mass index with healthy-range guidance.🔢Word CounterLive word, character, sentence & reading-time stats.🔠Case ConverterUPPER, lower, Title, camelCase, snake_case & 6 more.🌈Color ConverterPick a color, convert HEX ⇄ RGB ⇄ HSL.🔐Hash GeneratorSHA-1, SHA-256, SHA-384 & SHA-512 hashes.📏Unit ConverterLength, weight, temperature, volume & more.🆔UUID GeneratorRandom version-4 UUIDs, bulk & formatted.🧮Scientific CalculatorEvaluate math expressions & functions.

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Text

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🧹Text CleanerTrim, dedupe, strip HTML, fix line breaks & more.🔢Word CounterLive word, character, sentence & reading-time stats.🔠Case ConverterUPPER, lower, Title, camelCase, snake_case & 6 more.📄Lorem IpsumGenerate placeholder paragraphs, sentences or words.🔍Text DiffCompare two texts and highlight what changed.📑Markdown PreviewWrite Markdown, see live rendered HTML.🔗Slug GeneratorTurn any title into a clean URL slug.♻️Text RepeaterRepeat any text N times, with a separator.🔁Reverse TextReverse characters, words or lines.🧾Remove Duplicate LinesDelete repeated lines from a list.⬜Whitespace RemoverStrip extra spaces, tabs & blank lines.🔃Find & ReplaceBulk find-and-replace with regex support.🔡Line SorterSort lines A→Z, Z→A, by length or shuffle.🔐ROT13 CipherClassic ROT13 letter substitution.🗝️Caesar CipherShift-cipher encode & decode.📡Morse CodeTranslate text ⇄ Morse code.🎖️NATO PhoneticSpell words with the phonetic alphabet.📤Extract Emails & URLsPull emails, links or numbers out of text.🔤Fancy TextTurn text into stylish Unicode fonts.🙃Upside Down TextFlip text ¡uʍop ǝpᴉsdn.🪞Palindrome CheckerCheck if text reads the same backwards.🈹Emoji TranslatorSprinkle emojis into your text.⚡Bionic ReadingBold the start of each word to read faster.📖Readability ScoreFlesch reading ease and grade level.🚫Remove EmojiStrip emojis and symbols out of text.🔡Letter FrequencyCount how often each letter appears.

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Code & Data

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🗂️JSON FormatterValidate, beautify and minify JSON.🔡Base64 Encode/DecodeConvert text to and from Base64.🔐Hash GeneratorSHA-1, SHA-256, SHA-384 & SHA-512 hashes.🆔UUID GeneratorRandom version-4 UUIDs, bulk & formatted.🧮Number Base ConverterBinary, octal, decimal & hex — live.🔎Regex TesterTest patterns with live match highlighting.📎HTML Entity Encode/DecodeEscape or unescape HTML special characters.🎫JWT DecoderDecode a JSON Web Token header & payload.📋CSV ⇄ JSONConvert CSV to JSON and back again.🔗URL Encode/DecodePercent-encode or decode URLs & queries.📄HTML MinifierStrip comments & collapse whitespace.🎯CSS MinifierCompress CSS by removing whitespace.⚡JS Minifier (basic)Strip comments & extra whitespace from JS.🗄️SQL FormatterPretty-print SQL with clause breaks.📰XML FormatterIndent and pretty-print XML.➰String EscaperEscape/unescape for JSON, JS & more.🔣Hex ⇄ TextConvert between hex bytes and text.🚦HTTP Status CodesLook up any HTTP status code meaning.📁MIME Type LookupFind the MIME type for any file extension.⏲️Cron Expression HelperExplain a 5-field cron schedule in words.🔬Unicode InspectorSee code points for every character.

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Image & Design

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🎨Palette ExtractorPull the dominant colors out of any image.📐Image ResizerResize & compress images without uploading.🧬Image → Base64Encode an image as a data URI for inline use.🌈Color ConverterPick a color, convert HEX ⇄ RGB ⇄ HSL.🌗Gradient GeneratorDesign CSS gradients & copy the code.🌑Box-Shadow GeneratorVisually build a CSS box-shadow.⬜Border-Radius GeneratorCraft fancy rounded / blob shapes.🖌️Photo EditorAdjust brightness, contrast, filters & more.👾Pixel Art StudioDraw pixel art on a grid & export PNG.😂Meme GeneratorAdd top/bottom captions to an image.🔄Rotate & Flip ImageRotate 90°, flip and download.🎚️Color ShadesGenerate tints & shades of any color.👁️Contrast CheckerWCAG contrast ratio between two colors.🖍️Color MixerBlend two colors and copy the result.

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Converters

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📏Unit ConverterLength, weight, temperature, volume & more.💠Text ⇄ BinaryEncode text to binary and decode it back.🌡️Temperature ConverterCelsius, Fahrenheit & Kelvin, live.🥄Cooking ConverterCups, tablespoons, ml & grams (water).👟Shoe Size ConverterUS, UK, EU & CM shoe sizes.📐Angle ConverterDegrees, radians & gradians.⛽Fuel EconomyMPG ⇄ L/100km ⇄ km/L.🏃Running PaceConvert pace between min/km & min/mile.💾Data Size ConverterBytes, KB/MB/GB and KiB/MiB/GiB.🔓Chmod CalculatorBuild Unix file permissions & octal.🖥️Aspect Ratio CalculatorResize keeping the same proportions.🌍World ClockCurrent time across major time zones.

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Math & Numbers

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🔤Number to WordsSpell out numbers in plain English.🏛️Roman NumeralsConvert numbers ⇄ Roman numerals.％Percentage CalculatorPercent of, change, and X is what % of Y.🧮Scientific CalculatorEvaluate math expressions & functions.📊Average & StatisticsMean, median, mode, range & std-dev.➗GCD & LCMGreatest common divisor & least common multiple.🔟Prime CheckerTest primality & factorize a number.½Fraction ToolsSimplify fractions & convert to/from decimals.📈Quadratic SolverSolve ax² + bx + c = 0.❗Factorial & Combinationsn!, permutations nPr & combinations nCr.🐚Fibonacci GeneratorGenerate the Fibonacci sequence.📐Right TriangleSolve sides with the Pythagorean theorem.🔺Area & PerimeterCircle, rectangle, triangle & more.🟰Proportion SolverSolve a/b = c/x for the missing value.🔬Scientific NotationConvert numbers to/from scientific form.

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Finance

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🏦Loan / EMI CalculatorMonthly payment, total interest & cost.🍽️Tip CalculatorSplit the bill and tip fairly.🏷️Discount CalculatorSale price and how much you save.📈Compound InterestGrow savings with compounding & contributions.💵Simple InterestInterest = principal × rate × time.💼Salary ConverterHourly ⇄ weekly ⇄ monthly ⇄ yearly pay.🎯Savings GoalHow much to save each month to hit a goal.🧾Sales Tax / VATAdd or remove tax from a price.🏷️Margin & MarkupProfit margin and markup from cost & price.💹ROI CalculatorReturn on investment & annualized ROI.⚖️Break-Even PointUnits needed to cover fixed costs.🪙Currency FormatterFormat a number as money in any currency.⏳Rule of 72Years to double money at a given rate.📊50/30/20 BudgetSplit income into needs, wants & savings.

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Health & Fitness

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⚖️BMI CalculatorBody-mass index with healthy-range guidance.🔥BMR CalculatorBasal metabolic rate (calories at rest).🍽️TDEE / Calorie NeedsDaily calories based on activity level.📉Body Fat %Estimate body fat (U.S. Navy method).🎯Ideal WeightHealthy weight range for your height.💧Water IntakeRecommended daily water from body weight.❤️Heart Rate ZonesTarget training zones from your age.🏋️One-Rep MaxEstimate your 1RM for any lift.🤰Pregnancy Due DateEstimate due date from last period.😴Sleep CalculatorBest bed/wake times by sleep cycles.📆Weight Loss TimelineHow long to reach your goal weight.🥗Macro CalculatorSplit calories into protein, carbs & fat.🍷Blood Alcohol (est.)Rough BAC estimate — never drink & drive.

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Time & Date

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⏱️Timestamp ConverterUnix time ⇄ human-readable dates, live.🎂Age CalculatorExact age in years, months & days.📅Date DifferenceDays, weeks & months between two dates.⏳Countdown TimerLive countdown to any date & time.⏱️StopwatchStart, stop, lap and reset a stopwatch.🍅Pomodoro Timer25-minute focus sessions with breaks.➕Date Add / SubtractAdd or subtract days, weeks, months, years.📆Day of the WeekFind what day any date falls on.💼Business DaysCount working days between two dates.➗Time DurationAdd or subtract H:M:S durations.🐸Leap Year CheckerIs it a leap year? See nearby ones too.📆Year Progress BarSee how much of today, the month and year is gone.

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Generators

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🔑Password GeneratorStrong random passwords with a strength meter.🔳QR Code BuilderQR codes for URLs, WiFi, contacts & text.🎯Random NumberRandom integers in any range.🔀List RandomizerShuffle a list or pick a random winner.🎲Dice & Coin RollerFlip coins and roll dice of any size.🎨Random PaletteGenerate harmonious color palettes instantly.🔓Passphrase GeneratorMemorable word-based passwords.🙋Random NameGenerate random full names.👤Username GeneratorFun handles for gaming & social.🌈Random ColorGenerate a random color with codes.😜Random EmojiPick random emojis to copy.🗝️API Key / TokenRandom hex, base64 or UUID-style keys.💳Card Number ValidatorLuhn check & generate test card numbers.🖼️Placeholder ImageGenerate a sized placeholder PNG.🎡Decision WheelSpin a wheel to pick a winner.💬Random QuoteA dose of daily inspiration.📅Random DateGenerate a random date in any range.🎓GPA CalculatorCompute your grade point average.

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Web & SEO

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🛡️Password Strength TestCheck how strong a password is & why.🏷️Meta Tag GeneratorSEO, Open Graph & Twitter meta tags.🔍Google SERP PreviewPreview your title & description in search.📱Social Card PreviewSee how a link looks when shared.🔗UTM Link BuilderBuild campaign tracking URLs.🧩URL ParserBreak a URL into its components.🕵️User Agent ParserDetect browser, OS & device from a UA.📊Keyword DensityAnalyze word frequency for SEO.📖Reading TimeEstimate reading & speaking time.🤖robots.txt GeneratorBuild a robots.txt file visually.⭐Favicon GeneratorMake a favicon from an emoji or letter.📏CSS Unit Converterpx ⇄ rem ⇄ em ⇄ pt.🐦Social Char CounterCharacter limits for social platforms.📧Email ObfuscatorHide emails from spam-bot scrapers.🔲Table GeneratorBuild HTML & Markdown tables.📋List to HTMLTurn a plain list into HTML markup.🧱JSON-LD GeneratorStructured data for rich search results.❓Query String ParserDecode URL query parameters into a table.🖥️Screen InfoSee your screen, viewport and browser details.🗺️Sitemap GeneratorBuild an XML sitemap from a list of URLs.📏Character Limit CheckerCheck text against social and SEO length limits.

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Fun & Games

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⌨️Typing Speed TestMeasure your words-per-minute & accuracy.⚡Reaction Time TestHow fast are your reflexes?🖱️Click Speed TestHow many clicks per second (CPS)?✊Rock Paper ScissorsPlay against the computer.⭕Tic-Tac-ToePlay X vs a simple computer O.🧠Memory MatchFlip cards to find matching pairs.🔢Number GuessingGuess the secret number 1–100.🎱Magic 8-BallAsk a yes/no question, get an answer.🪙Coin FlipHeads or tails with a running tally.🔤Word ScrambleUnscramble the hidden word.🎨Guess the ColorMatch the hex code to the swatch.🎪HangmanGuess the word before the man hangs.🟩Simon SaysRepeat the growing color sequence.🎴Higher or LowerGuess if the next number is higher.❓Trivia QuizTest your general knowledge.💘Love CalculatorJust-for-fun compatibility score.😄Dad JokesGroan-worthy jokes on demand.🤷Would You RatherImpossible choices to ponder.🧐Random FactsSurprising facts to impress friends.🎟️Bingo CardGenerate a random bingo card.🔮Yes or No OracleLet fate decide your question.

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Productivity

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✅To-Do ListA simple saved checklist for your tasks.📝Quick NotepadA scratchpad that auto-saves locally.🔢Tally CounterTap to count anything, saved locally.📅Habit TrackerTrack daily habits over the week.💸Meeting Cost TimerWatch the cost of a meeting tick up live.🫁Breathing ExerciseCalm down with box breathing.🗂️Eisenhower MatrixPrioritize tasks by urgency & importance.🃏FlashcardsCreate & study saved flashcards.👥Team PickerRandomly split names into teams.🎯Random Name PickerPick a random winner from a list.🎵MetronomeKeep the beat with an audible click.🌊White NoiseAmbient noise for focus & sleep.🏆ScoreboardTrack scores for two players or teams.✏️Doodle PadSketch freely & download your drawing.🎰Decision MakerCan’t decide? Let chance choose.✍️Writing PromptSpark a story with a random prompt.🧊Icebreaker QuestionsFun questions to get conversations going.😊Mood TrackerLog your daily mood & see the week.🙏Gratitude JournalNote things you’re grateful for.🛒Shopping ListA saved, checkable grocery list.🗓️Daily PlannerPlan your day hour by hour.🎯Word Count GoalWrite toward a target word count.📚Reading ListTrack books to read, reading & finished.⚖️Pros & ConsWeigh a decision side by side.🔊Text to SpeechRead any text aloud in your browser.