Utility Tools
122 free tools — all run in your browser, no account needed.
Password Strength CheckerScore your password strength and generate stronger ones.Use tool →Password GeneratorGenerate strong random passwords with configurable length and character sets.Use tool →Decision MakerLet the tool randomly pick from your list of options.Use tool →Yes or No WheelSpin a wheel for a random yes or no answer.Use tool →Discord Timestamp GeneratorPick a date and time to generate Discord timestamp tags with live preview and one-click copy.Use tool →Discord Embed BuilderDesign Discord embeds with live preview — copy JSON for bots, webhooks, and Discord.js.Use tool →My Screen SizeDetect your current screen resolution and aspect ratio.Use tool →Screen Sizes ReferenceCommon Apple device screen sizes and resolutions.Use tool →Aspect Ratio CalculatorCalculate reduced aspect ratios and proportional dimensions.Use tool →String CalculatorAnalyze text statistics: characters, words, lines, paragraphs.Use tool →Roman Numeral ConverterConvert numbers to Roman numerals and Roman numerals to numbers.Use tool →Readability Score CalculatorCalculate Flesch, FK Grade, Gunning Fog, and SMOG readability scores.Use tool →Number to Words ConverterConvert numeric values into English words, including negatives and decimals.Use tool →Temperature ConverterConvert between Celsius, Fahrenheit, Kelvin, and Rankine instantly.Use tool →Unit ConverterConvert between metric and imperial units for length, weight, volume, and area.Use tool →StopwatchOnline stopwatch with lap tracking, split times, and best/worst lap highlighting.Use tool →Random Number GeneratorGenerate random integers or decimals within any range, with no-duplicate and sort options.Use tool →Statistics CalculatorCalculate mean, median, mode, standard deviation, variance, and more from a list of numbers.Use tool →GPA CalculatorCalculate your weighted GPA from courses, letter grades, and credit hours on a 4.0 scale.Use tool →Coin FlipFlip a virtual coin online for a random heads or tails result. Supports multi-flip mode and tracks your heads/tails statistics.Use tool →Online TimerFree online countdown timer with hour, minute, and second input, quick presets, and an audio alarm when time is up.Use tool →Image ResizerResize any image in your browser — set dimensions, choose JPEG, PNG, or WebP format, and download the result. Nothing uploaded.Use tool →Tally CounterFree online tally counter with multiple named counters. Click to increment, decrement, or reset each counter independently.Use tool →Noise GeneratorPlay white, pink, or brown noise to help you focus, relax, or fall asleep. Generated in your browser using the Web Audio API.Use tool →Number Sequence GeneratorGenerate Fibonacci, prime, powers of 2, triangular, square, cube, factorial, arithmetic, and geometric sequences. Copy as a comma-separated list or with custom separators.Use tool →Times Table GeneratorGenerate the multiplication table for any number from 1 to 20. Choose how far to count, hover rows to highlight them, and copy the full table as plain text.Use tool →BPM Tap CounterTap in rhythm to calculate beats per minute (BPM).Use tool →Number FormatterFormat any number in 14 different ways — US/EU/Indian locale, currency, scientific notation, engineering, words, binary, hex, octal, and more.Use tool →Interactive Periodic TableExplore all 118 elements of the periodic table. Click any element to see atomic number, symbol, name, mass, and category. Search and filter by element type.Use tool →Fuel Efficiency ConverterConvert fuel efficiency between MPG (US), MPG (UK), L/100km, and km/L. Includes a trip cost calculator — enter distance and fuel price to estimate total fuel spend.Use tool →Shoe Size ConverterConvert shoe sizes between US, UK, EU, CM, and Japanese sizing for men, women, and kids. Full size charts included — find your equivalent size in any system instantly.Use tool →Triangle CalculatorSolve any triangle using SSS, SAS, ASA, or AAS. Calculate all missing sides, angles, area, and perimeter with an SVG visualization and triangle type detection.Use tool →Random Name GeneratorGenerate random full names, first names, or last names. Choose male, female, or any gender across 7 nationalities — English, Spanish, French, German, Japanese, Arabic, and Italian.Use tool →List RandomizerShuffle any list instantly. Paste items one per line, randomize the order, or pick a single random item. Perfect for random order, name draws, playlist shuffles, or deciding who goes first.Use tool →Team RandomizerRandomly split a list of names into teams. Paste names one per line, choose 2–10 teams, shuffle, and re-shuffle with colored team cards. Shareable link included.Use tool →Bingo Card GeneratorGenerate printable bingo cards online. Choose numbers (B-I-N-G-O columns) or custom words, preview cards, and download each as PNG or print all at once.Use tool →Username GeneratorGenerate unique usernames in gamer, professional, cute, or random styles. Add a keyword, toggle numbers, and get dozens of ideas at once. Shows character limits for major platforms.Use tool →Quadratic Formula CalculatorSolve quadratic equations (ax² + bx + c = 0) with step-by-step solutions. Get real and complex roots, discriminant, vertex, and parabola direction. Free quadratic equation solver.Use tool →PPI CalculatorCalculate pixels per inch (pixel density) for any screen. Enter resolution and screen size to get PPI, PPCM, megapixels, and dot pitch. Also converts pixels to inches, cm, and mm.Use tool →Passphrase GeneratorGenerate strong, memorable passphrases using random words. Customize word count, separators, and capitalization. See entropy and estimated crack time.Use tool →File Size ConverterConvert file sizes between bytes, KB, MB, GB, TB, and more in both SI (decimal) and IEC (binary) notation. Instantly compare how drive manufacturers vs. operating systems measure storage.Use tool →Download Time CalculatorCalculate how long it takes to download any file at a given internet speed. Supports Kbps, Mbps, Gbps, and MB/s with quick presets for 3G, 4G, 5G, and broadband.Use tool →Circle CalculatorEnter any one property of a circle — radius, diameter, area, or circumference — and instantly calculate all the others using standard geometry formulas.Use tool →Square Footage CalculatorCalculate the total square footage of one or more rooms. Supports rectangular, triangular, and circular shapes. Add multiple rooms and get instant totals in ft² and m².Use tool →Uptime & SLA CalculatorCalculate the maximum allowed downtime for any uptime SLA percentage. See how much downtime is permitted per year, month, week, and day for 99%, 99.9%, 99.99% and custom SLAs.Use tool →IBAN Validator & ParserValidate and parse IBAN numbers — check format, verify the checksum, and extract country and BBAN.Use tool →Wordle SolverStuck on Wordle? Enter your guesses, mark letters as correct, present, or absent, and instantly see all remaining valid words — filter your way to the answer.Use tool →Online MetronomeFree online metronome with tap tempo, 20–300 BPM, and time signature support, using precise Web Audio timing.Use tool →Chord Progression GeneratorGenerate and play chord progressions in any key and scale, with popular progressions and Web Audio playback.Use tool →Passport Photo MakerCrop a photo to passport or ID photo standards, with head-height guides and a printable sheet of copies at 300 DPI.Use tool →Maze GeneratorGenerate printable mazes with several algorithms, optional braiding for loops, and an animated solution path.Use tool →Sudoku Generator & SolverGenerate Sudoku puzzles with a guaranteed unique solution across five difficulties. Play them, or reveal the answer.Use tool →Nonogram Generator & SolverCreate nonogram puzzles from an image or at random, then solve them with real row and column logic.Use tool →Virtual PianoPlay a piano in your browser with your mouse or keyboard, with chord and scale helpers built in to learn from.Use tool →EXIF Metadata StripperSee what EXIF data a photo carries, including GPS coordinates, then strip it by re-encoding the image so you can share it safely.Use tool →Branded QR Code GeneratorCreate a styled QR code with custom shapes, colours, gradients and a centre logo, with a scannability warning when the styling goes too far.Use tool →Printable Calendar GeneratorGenerate a printable month, year or week calendar with your choice of week start, paper size, week numbers and notes area.Use tool →Lined & Graph Paper GeneratorGenerate printable ruled, dot grid, square grid, isometric and handwriting-practice paper at your chosen line spacing and paper size.Use tool →Music Staff Paper GeneratorGenerate blank manuscript paper with correctly spaced five-line staves, your choice of clef, systems per page, paper size and orientation.Use tool →Comic Book Page TemplateGenerate printable comic panel layouts from ten classic arrangements, with adjustable gutters, margins and borders on a standard comic page.Use tool →Printable RulerPrint a genuinely accurate ruler in cm/mm or inches. Calibrate your screen first, then choose the subdivisions and print at 100% scale.Use tool →Printable ProtractorPrint an accurate protractor with 1° markings and 10° labels, in full or half circle form, at your chosen diameter.Use tool →Name Tag GeneratorTurn a list of names into a printable sheet of name tags, badges or folded place cards, paginated with cut guides.Use tool →Chore Chart GeneratorBuild a printable chore and reward chart with assignees, a weekly or monthly layout, completion columns and a reward section.Use tool →Drum MachineA 16-step drum sequencer that synthesises its own kick, snare, hats and claps. Program patterns, set tempo and swing, and save them as JSON.Use tool →Tone GeneratorGenerate a precise tone from 20Hz to 20kHz. Choose the waveform, add a frequency sweep, and see the note name for the frequency you pick.Use tool →Instrument TunerTune a guitar, bass, ukulele or violin using your microphone. See the detected note and how many cents sharp or flat you are. Audio never leaves your device.Use tool →Guitar Chord Diagram MakerDraw printable guitar chord diagrams from a chord library or your own custom shapes, with finger numbers, open and muted strings, and playback.Use tool →Guitar Fretboard ExplorerExplore scales, chords and intervals across the fretboard in any tuning. Display note names, intervals or degrees, highlight the root, and hear each note.Use tool →Chord IdentifierIdentify any chord from its notes. Pick notes on a keyboard or fretboard and see the chord name, alternatives and inversions, with playback.Use tool →Audio TrimmerTrim an audio file by dragging handles on a real waveform. Add fades and export the trimmed clip as a WAV, all in your browser.Use tool →Voice RecorderRecord from your microphone with a live level meter, then trim the result on a waveform and download it. Nothing is uploaded.Use tool →Crossword Puzzle MakerBuild a real interlocking crossword from your words and clues, with automatic numbering and across/down clue lists. Print the puzzle and its solution.Use tool →Boggle Board GeneratorGenerate letter grids for word games and see every valid word hidden in the board, found with a real search and grouped by length and score.Use tool →Logic Grid Puzzle GeneratorGenerate Einstein-style logic puzzles with clues that provably determine a unique solution, plus an interactive grid to solve them in.Use tool →Cryptogram Puzzle GeneratorTurn a quote into a substitution cipher puzzle. Solve it in the page with a letter-frequency panel, hints and a check button, or print it.Use tool →Chess Board EditorSet up any chess position by dragging pieces. Load and copy FEN, mirror the board, and get warned about illegal positions.Use tool →Sliding Puzzle MakerCreate always-solvable sliding puzzles from numbers or your own image, size 3×3 up to 6×6, and play them with mouse or keyboard.Use tool →Memory Card Game MakerBuild a memory matching game with text, emoji or your own images, play it in the page, or print a cut-out sheet of cards.Use tool →Hangman Game & Worksheet MakerPlay hangman in the browser with a word list by category, or generate a printable worksheet of blank games with a word bank.Use tool →Paint CalculatorWork out how much paint a room needs, subtracting doors and windows. Get litres per coat, cans to buy, and a labelled plan of the walls.Use tool →Tile CalculatorCalculate tiles and boxes needed for a floor or wall, including grout and waste, with a scaled layout showing full and cut tiles.Use tool →Wallpaper CalculatorWork out how many rolls of wallpaper you need, correctly accounting for pattern repeat, match type and the drops lost to matching.Use tool →Concrete CalculatorEstimate concrete volume and bag counts for slabs, footings, columns and stairs, with a dimensioned diagram and optional rebar estimate.Use tool →Stair CalculatorDesign a staircase with correct riser and tread proportions. Get risers, treads, total run, stringer length and angle, with a scaled cross-section drawing.Use tool →Roof Pitch CalculatorConvert between pitch ratio, degrees and percentage slope, and calculate rafter length, ridge height and roofing squares from the run.Use tool →Square Foot Garden PlannerPlan a raised bed on a square-foot grid with correct plant spacing, a sowing calendar and companion-planting warnings. Save layouts in your browser.Use tool →Seating Chart GeneratorArrange guests into tables automatically while keeping groups together, then drag seats around. Print the chart and export per-table guest lists.Use tool →Math Worksheet GeneratorGenerate printable maths practice sheets on any topic with correctly computed answers and a separate answer key. Choose the range, format and question count.Use tool →Fraction VisualizerSee fractions as pie slices, bars and number lines, do fraction arithmetic with the working shown step by step, and print practice worksheets.Use tool →3D Shape Net GeneratorGenerate accurate printable nets for cubes, pyramids, prisms, cylinders, cones and more, with fold lines, glue tabs and dimensions labelled.Use tool →Handwriting Worksheet MakerCreate tracing and copy practice sheets with proper four-line guides, dotted text to trace and blank lines to write on. Print or download.Use tool →Spelling Worksheet MakerBuild spelling practice sheets from your word list: write three times, alphabetical order, missing letters, unscramble, sentences and a word search.Use tool →Number Line GeneratorGenerate printable number lines with your choice of range, step, negatives, decimals or fractions, labelled or left blank for students to fill in.Use tool →Clock Face Worksheet MakerGenerate printable analogue clock faces for teaching time, with optional blank faces and times randomised at your chosen granularity.Use tool →Printable Tangram GeneratorPrint mathematically accurate tangram pieces with optional puzzle silhouettes to solve, and a cut-out sheet of the seven tans.Use tool →Online Step CounterCount your steps from your phone's motion sensor with a real peak-detection algorithm, plus cadence, distance, calories and a live activity graph. Nothing leaves your device.Use tool →Dice Probability SimulatorRoll dice notation thousands of times and compare the simulated distribution against the exact theoretical one, with mean, standard deviation and per-total probabilities.Use tool →Coin Flip & Streak TrackerFlip coins with real randomness, track heads, tails, current and longest streaks, chart the convergence towards 50% and test the fairness with a chi-square statistic.Use tool →Card Shuffle SimulatorCompare Fisher-Yates, riffle, overhand and no-shuffle with Monte Carlo experiments that show how quickly each one randomises a deck, using rising sequences and a position heatmap.Use tool →Colour Format ConverterConvert a colour between HEX, RGB, HSL, HWB, CMYK, LAB, LCH, OKLCH, XYZ and named colours at once, with a wide-gamut warning and copy-ready snippets for CSS, Swift, Android and Flutter.Use tool →Random Data Table GeneratorGenerate realistic fake records — names, emails, addresses, dates, prices, IBANs and Luhn-valid card numbers — then export as CSV, JSON, SQL inserts or Markdown from a reproducible seed.Use tool →Placeholder Image Generator ProGenerate placeholder images locally on canvas — solid, gradient, numbered, geometric or avatar styles — at any size or as a batch, and download them individually or as a ZIP.Use tool →Text Hash GeneratorHash text or a file with MD5, SHA-1, SHA-256/384/512, SHA-3 and CRC-32 at once, in hex, base64 and base64url, and verify a hash against the input.Use tool →Countdown Event TimerTrack countdowns to several named events at once, with days, hours, minutes and seconds, an alarm at zero, a big-screen mode and a calendar file you can download.Use tool →File Checksum VerifierCompute MD5, SHA-1, SHA-256, SHA-512 and CRC-32 for dropped files and verify them against a pasted checksum list, with a clear pass or fail per file. Files are never uploaded.Use tool →Kanban BoardA drag-and-drop kanban board with columns, cards, labels, due dates, checklists, WIP limits and filters. Your board is saved in your browser and can be exported as JSON or Markdown.Use tool →Time Block PlannerPlan your day on a timeline: drag to create, move and resize blocks, colour-code them by category, and see totals per category plus the free time you have left.Use tool →Weekly Schedule BuilderBuild a repeating weekly timetable with conflict detection, per-day totals, a live current-activity indicator, and print, CSV or .ics calendar export.Use tool →Reading List ManagerTrack books and articles with status, progress, ratings and tags. See reading stats, a monthly chart and an estimated finish date based on your own reading pace.Use tool →Goal & Habit Progress TrackerSet measurable goals with a deadline, log progress over time and see whether you are ahead of the required pace, with a projected completion date and a progress chart.Use tool →Favicon Preview CheckerSee how an image really looks as a favicon in a browser tab, bookmark bar, iOS home screen and Google result, then download the full icon set with the HTML and manifest.Use tool →Screen Breakpoint SimulatorCheck any layout against real device widths and pixel ratios, see which CSS breakpoints a width falls into, and copy a ready-made media query.Use tool →Device Pixel Ratio & Screen InfoSee the real display details of your device — pixel ratio, screen and viewport sizes, colour depth and media preferences — plus which modern image formats your browser supports.Use tool →Keyboard Layout & Key TesterPress any key and see it light up on a real keyboard layout, with the key code, location, modifier state, rollover count and your typing latency. Great for debugging shortcuts.Use tool →Mouse & Pointer TestCheck your mouse for double-click faults, polling rate, pointer drift, acceleration and button mapping, and test the scroll wheel and every button on a live pad.Use tool →Webcam Test & Photo BoothCheck your camera and microphone work, see the resolution and frame rate, and take a self-timer snapshot you can download. The stream stays on your device and stops when you leave.Use tool →QR Code & Barcode ScannerScan QR codes and common barcodes from your camera or from an uploaded image, with the decoded content shown and copyable. Uses your browser's built-in detector, so nothing is uploaded.Use tool →Air Fryer & Oven ConverterConvert cooking times and temperatures between a conventional oven, a fan oven, an air fryer and a microwave, with gas mark equivalents, food timings and safe internal temperatures.Use tool →Bread Dough Hydration CalculatorScale a bread recipe in baker's percentages, accounting for the water in your starter, and get every ingredient weight, the true hydration and the water temperature for your target dough temperature.Use tool →Habit Grid TrackerTrack several habits across a whole year as a colour-intensity grid, with click-to-cycle levels, current and longest streaks, completion rates and a printable view.Use tool →Screen & Pixel Density TesterMeasure your display's real refresh rate and pixel density, then check it with pixel-grid, gradient-banding, colour and text-rendering test patterns you can read results from.Use tool →