Web Toolbox utils.im is a growing collection of small, fast web tools — calculators, timers, unit converters and file helpers. Everything runs locally in your browser, with nothing to install.
All tools Retirement Savings Calculator — See how much you need for retirement and how much to save each month.Loan Calculator — Monthly payments and total interest, three methods.Zakat Calculator — Work out your Zakat (2.5%) against the nisab, with live gold/silver prices.Halal Stock Screener — Check a stock's halal-to-haram revenue ratio and the Shariah debt and interest screens, with dividend purification.Currency Converter — Convert between currencies using live exchange rates.VAT & Sales Tax Calculator — Add or extract VAT, sales tax, or GST by country/region.Tip Calculator — Work out the tip and split the bill per person.Percentage Calculator — Percent of, ratio, change rate, and discounts in one place.Nasdaq Fear & Greed Index — Check US Nasdaq market sentiment right now on a 0–100 gauge.Compound Interest Calculator — See how many times over your money grows, year by year.Stock Average Cost Calculator — Average price across multiple buys, shares needed to average down, break-even and target price.Dividend Withholding Tax Calculator — Work out net dividends after foreign withholding and your home-country tax credit.IBAN Checker — Validate an international bank account number: country, length, structure, checksum.Inflation Calculator — See what past money is worth today, using consumer price index data.BMI & BMR Calculator — Body mass index, basal metabolic rate, and daily calorie needs.Due Date Calculator — Get your due date and how far along you are from your last period, conception, or embryo transfer.TDEE Calculator — Find the calories you burn daily (TDEE) and your BMR, plus target calories and macros for any goal.Ovulation Calculator — Ovulation day, fertile window and next period dates for three cycles, from your last period and cycle length.1RM Calculator — Estimate your one-rep max and a per-set weight table from a lift.Running Pace Calculator — Enter two of pace, finish time and distance to get the third, plus treadmill speed and splits.Running Interval Calculator — Turn a goal race time into training paces and lay out the session as per-rep targets with a total time.Tabata & HIIT Timer — Set up high-intensity intervals like 20/10 and run them with audio cues, including rounds, sets and prep time.Multi Timer — Run several named timers at once. It reads the name aloud when done.Boiling Times — Egg, pasta, and veggie boiling times — start a timer in one tap.Recipe Scaler — Rescale recipe ingredients to any number of servings.Measurement Converter — Convert spoons, cups, ml and grams with per-ingredient density.Unit Converter — Convert length, weight, temperature, and area.Image Compressor — Compress and resize images right in your browser.PDF Merge — Combine PDFs in your browser — no upload.GIF Maker — Combine images into an animated GIF, right in your browser.Image to PDF — Combine photos into one PDF, right in your browser.Split PDF & Extract Pages — Pull out the pages you need, delete pages, or rotate them — and split a PDF into single pages.HEIC to JPG Converter — Turn iPhone photos (HEIC) into JPG or PNG that opens anywhere. Convert several at once.ID & Passport Photo Maker — Upload a photo, mark the head top and chin, and get a crop that fits each country's spec — plus a print sheet.PDF to JPG Converter — Turn PDF pages into images — pick the pages you need or take all of them as one ZIP.Compress PDF — Shrink a PDF by re-encoding the images inside. Text and layout untouched, nothing uploaded.Remove Background — Cut the background out of any photo and get a transparent PNG. No upload, full resolution, free.Marble Race Roulette — Marbles roll down the board to pick a winner.Ghost Leg (Ladder) — Randomly match names to outcomes with a ladder.Team Splitter — Randomly split people into fair teams.Plate Balance Game — Move the pole with your mouse and keep the plate up. Longest survival wins — settle a bet with it.Darts Game — Throw at a real dartboard and play 01, Cricket or Count-Up against friends.2048 Game — Slide tiles and merge matching numbers to reach 2048. Free, no download.Block Puzzle — Drop blocks on an 8×8 grid and clear full lines. Free, no download.Minesweeper — Classic minesweeper with easy, medium and hard boards. Free, no download.Memory Match — Flip cards and find matching pairs — a classic concentration game, 12 to 36 cards.Solitaire — Classic Klondike solitaire, played with taps instead of dragging. Free, no download.Spin the Wheel — Add names or options, spin, and the arrow picks the winner.Sudoku — Fill every row, column and box with 1–9. Four difficulties, free and no download.Falling Blocks — Rotate falling pieces and clear lines. Free in the browser, no download.Snake Game — Steer a growing snake past the walls and its own tail. Free, no download.Match 3 Puzzle — Swap gems to line up three and clear them. Thirty moves, cascading combos, free.Bounce Ball — Bounce balls to chip away numbered bricks before the rows reach the floor. Free, no download.Fruit Merge — Drop matching fruit to merge them and grow a watermelon. Free in the browser, no download.Stack Tower — Time your taps to stack sliding blocks into a tower. Free in the browser, no download.Tap Fly — Tap to bounce a bird through pipe gaps. Ten-second runs, free, no download.Reaction Time Test — Click the instant the screen turns green. Your grade comes from the median of 5 tries.Matrix Reasoning Test — Find the rule in a 3×3 grid and fill the empty cell. Items are generated fresh every run.Aim Accuracy Test — Hit as many targets as you can in 30 seconds — hit count plus accuracy.Flanker Interference Test — Answer only the middle arrow. Measures your attentional interference in milliseconds.Memory Span Test — Repeat the order tiles flash in to measure spatial working memory (Corsi block task).Mental Rotation Test — Rotate shapes in your head: identical or mirrored? 20 spatial reasoning items.Time Perception Test — Stop at the target time without counting, and see how far off your sense of time is.Vision Test — Calibrate the screen with a card, answer which way the E opens, get decimal and Snellen acuity.Typing Speed Test — Measure WPM, accuracy and errors over a 15, 30 or 60 second run.Baccarat Trainer — Play baccarat with practice chips and see how far apart banker, player and tie really are.Blackjack Trainer — Play blackjack with practice chips and learn the highest-EV move on every hand.Casino Roulette Trainer — Spin a European single-zero wheel and see how payouts and the house edge cancel out.Balance Game — Pick one of two in secret, reveal together, minority drinks. Three heat levels.Spin the Bottle — Spin to pick one person with equal odds, with back-to-back picks blocked.Random Mission Cards — Draw a mission and finish it before the built-in timer runs out, or drink.Five Fingers — Fold a finger when the statement is true for you. First to fold all five drinks.Truth Game — Draw a question, answer honestly or drink. Heat levels from mild to adults-only.Dice Roller — Roll D4, D6, D8, D12 or D20 — up to six, or once per player to find the lowest.Most Likely To — Draw a question, point at someone in secret, and whoever gets the most votes drinks.Developer Tools — JSON·Base64·URL·Regex·Timestamp·JWT·Cron·CIDR·Diff.Character & Word Counter — Count characters, words, lines, and bytes in real time.QR Code Generator — Turn any link or text into a QR code and download it as PNG.What Is My IP — See your public IP with location, ISP, and browser details.Server Load Simulator — Estimate max TPS and bottlenecks from your architecture.Keyboard Tester — Press keys to check they register. Spot dead keys and test how many keys work at once (NKRO).Microphone Test — Check your mic picks up sound. Watch the input level live and record a clip to play back.Webcam Test — Check your webcam works, with a live preview showing the real resolution and frame rate.Color Code Converter — Convert HEX, RGB, HSL and OKLCH, and check the WCAG contrast ratio between two colors.Password Generator — Strong random passwords from your browser's cryptographic generator, with strength and entropy.Color Palette Generator — Build complementary, analogous and triadic palettes from one color.UUID Generator — Generate UUID v4 and v7 with cryptographic randomness — bulk, uppercase, no-hyphen options.By profession About · Contact · Terms of Service · FAQ · Blog · Privacy Policy