🧰 Every Tool

ℹ️ What this tool does & how it works

The whole toolbox — 1136 tools, sixty to a page. Browse it in order, or use the box to jump straight to the one you came for; the shelves under Everyday Tools group the same list by subject.

1136 match · 60 listed below · page 2 of 19

🖌️Paint Coverage CalculatorHow much paint the room actually needs: wall area minus doors and windows, at the tin's real m²-per-litre, with waste and second coats included. 🥘Recipe ScalerHalve, double or 2.5× a recipe and read the result as fractions a human measures with — ¾ tsp, not 0.75 tsp. 🖨Print Size Calculator3000×2000 prints 10×6.7 inches at 300 dpi — plus the honest physics of how big you can actually go before the dots show. 💡Electricity Cost CalculatorThe real money an appliance burns: watts-hours to kWh, your own tariff, the annual figure, and what that always-on standby light actually costs. 🏃Running Pace CalculatorPace per km and mile, even splits from 5K to marathon, and the Riegel 1.06 prediction with its honest warning about the wall. 🎨Design StudioThe poster maker without the login wall: eight starter templates, real layer editing with drag handles, rotation, snapping, one-click alignment, lock and flip, undo history, autosave and PNG/JPG/WebP export up to 4×. 💧Water TargetHow much water is actually enough for your weight, your training week and your climate — converted into glasses, bottles and an hourly sip pace you can follow. 🌱Compound InterestA lump sum and a monthly habit grown year by year with true compounding maths — including the effective annual rate banks quote differently and the exact doubling time, not just rule of 72. 🧾Tax Add & RemoveAdd GST/SST/VAT to a price or strip it back out of a receipt — with the exact net and tax split, and every common world rate compared on the same number. 🫁Breathing PacerFollow a growing and shrinking circle through coherent, box and 4-7-8 breathing — the visual pacer that makes a one-minute calm session actually work. 📡Morse CodeText to International Morse and back with the full ITU table including punctuation, word-gap slashes, and dit/dah playback generated by your browser's own audio oscillator. 🗣️Phonetic AlphabetRead any code out loud unambiguously: the official ICAO words Alpha through Zulu plus the digit list, both directions, with the awkward-pronunciation notes. 🗓️Week NumberThe week number the standard actually defines — first week contains a Thursday, weeks start Monday — plus day-of-year, days left, and the reverse lookup from W-number to dates. 📝Markdown to HTMLA Markdown-to-HTML converter that escapes angle brackets before it formats, so no script tag ever survives the trip — paste, copy, done, nothing uploaded. 🔤Case ConverterPaste any identifier — getUserID, http-request, API_KEY_2 — and get all nine naming conventions from one tokenisation, camelCase humps included. 📍Coordinate DistanceHow far is it really between two lat/lon dots: haversine great-circle distance in km, miles and nautical miles, with the compass bearing you would leave on. 🗓️Calendar GridA printable month grid for any month in 240 years — Monday or Sunday start, ISO week numbers down the side, generated from calendar arithmetic and nothing else. ⌨️Typing Speed TestSixty seconds, sixty common words, live scoring by the standard typing-test convention — 5 keystrokes = 1 word, errors count against you, nothing leaves the page. 🎓GPA CalculatorDrop in your courses, credits and letters — get the credits-weighted GPA with the arithmetic visible, your degree-class band, and what it takes to hit a target. 👟Shoe Size ConverterFoot length in centimetres to EU, UK and US sizes and back — the real formulas (Paris point, Brannock barleycorns) instead of a table you cannot check. 📱Screen & PPIPut any two screens side by side and get real width, height and pixel density — plus the area comparison a diagonal-inches number is designed to hide. 🎵MetronomeA precise click track from the browser\u2019s own audio clock — 40 to 208 BPM, accented first beat, 2/3/4/6 per bar, and the Andante-to-Presto names the sheet music promises. ⏱️Stopwatch & LapsA lap-split stopwatch whose time comes from the system clock, not a ticking counter — background-tab throttling cannot make it drift a single millisecond. 🩸Blood Type PunnettThe ABO cross done honestly as a Punnett square — pick both parents\u2019 genotypes and see why two group-A parents can have an O child, with every odds percentage. 🧬DNA TranslatorComplement, reverse complement, mRNA and the actual protein from the standard codon table — the four readings every genetics course asks for, computed on your device. 🕸️Subnet CalculatorThe full IPv4 breakdown of any CIDR — network, broadcast, first and last usable address, mask and wildcard, and the next block in the allocation, by pure arithmetic. 💓HR ZonesTraining zones computed the way exercise science does — heart-rate reserve from your <i>resting</i> rate, not raw percentages of a mythic 220-minus-age max. ☕Caffeine Half-LifeTrack the exponential decay of your last coffee hour by hour — when the body load drops below 100 mg, and how much is still circulating when you plan to sleep. 🌙Moon PhaseThe Moon\u2019s age, phase name and lit fraction for any date from the mean synodic month — with the ±1 day accuracy honestly stated. ✝️Easter DateEaster Sunday for any year from the 6th-century algorithm the Church still uses — Western and Orthodox dates side by side, with the intermediate golden number and epact. 📅Weekday FinderWhat weekday is 14 March 2027? A calendar-correct answer for any date, plus every year your birthday lands on a Saturday. ⏳Days Between DatesHow many days until the deadline — plain, or weekends excluded, with the ISO week span and the y-m-d breakdown. 🗄️KB vs KiBThe same file in decimal and binary units with the exact byte count — why 500 MB is 476.8 MiB, and why 100 Mbps is 12.5 MB/s. 🔐Password StrengthEntropy bits instead of a coloured bar: the character pool, the dictionary and-pattern penalties, and what a GPU cracking rig needs. 🔁Repeating DecimalSee the infinite inside a fraction: the long-division expansion with the repeating cycle marked, its length, and the remainder trail that proves it must repeat. ⌨️Keyboard TestPress every key and see every register — the two-minute health check for a secondhand laptop, a borrowed keyboard or a suspect switch. 🍅Pomodoro TimerRun proper pomodoro sessions — 25 minutes of work, 5 of rest, a long break every fourth — with the countdown kept on the system clock, so a throttled tab loses nothing. 📖Reading TimeCount a text the way a word processor does and quote the reading time that matches the claim — average silent reading, reading aloud, or a recorded narration, all from research speeds. 🏷️EAN-13 BarcodeGenerate real EAN-13 barcodes from 12 digits — the check digit computed with the official 1,3 weights and the bars drawn straight onto a canvas, with the encoding table on the page. ✂️Slug GeneratorCrème Brûlée becomes creme-brulee — accents stripped properly, symbols spelled out before they are dropped, and the length cut never leaves a dangling dash. 🗂FlashcardsPaste any "front | back" list and drill it as a shuffleable flashcard deck that tracks what you keep missing — no account, nothing stored. ❓Quiz MakerTurn any notes into a self-marking multiple-choice quiz with the "question | correct | wrong" line format — options reshuffle every sit. ✖️Times Tables TrainerMultiplication drills for one table or all of them mixed, with streaks, questions-per-minute and a review list built from your own misses. 🕐Clock ReadingA drawn analogue face, four difficulty levels and instant marking — the way children actually learn that the long hand counts minutes. 🧪Periodic Table ExplorerEvery element from hydrogen to oganesson: atomic weight, family and state, searchable by name, symbol or number — with a random-element button. 🌍Flags QuizTwo-way flag drill over some 170 countries: see the flag and name it, or see the name and pick the flag — scored, self-marking, in-browser. 🔤Word ScrambleJumbled letters from themed word banks with progressive hints and a score — a warm-up game for spelling and vocabulary lessons. 📝Worksheet GeneratorPrintable arithmetic sheets with an answer key: pick the operation, the level and the count, then hit Print — no account, no watermark. 🐝Spelling PracticeWords hidden in sentences, spoken aloud by the browser voice when you want a hint by ear instead of by letter — three levels, marked instantly. 🪐Solar System ExplorerEvery planet, the dwarf Pluto and the Sun itself: size against Earth, orbit, day, moons, gravity and temperature — rounded NASA fact-sheet data. 📅Study PlannerType the exam date and get the revision calendar: first pass today, recalls at 1, 2, 4, 8 days, the night before capped — pure spacing maths. 🎯Word GuessThe classroom hangman with the gallows taken out: themed word banks, six lives, a full keyboard of letter keys and a running score. 📚Citation MakerFive boxes in, a correctly punctuated reference out — APA, MLA, Chicago or Harvard, for books and webpages, entirely in your browser. ✂️Text SummarizerFinds the sentences a passage is actually about by word frequency and keeps the best three — with a keyword list, running in your tab. ⌨️Typing Speed TestA no-nonsense WPM check: type the sentence shown, watch correct words turn green and wrong ones red, get speed and accuracy the moment you finish. 🗒Essay PlannerThe five-paragraph skeleton done properly: thesis built from your own points, evidence slots for each body paragraph, and the counter-argument you cannot skip. 🕳Cloze Test MakerYour paragraph becomes a gap-fill test: key words lifted out into a shuffled bank, numbered blanks in place, one click to show the answers. 📓Cornell Notes PageGenerates the Cornell two-column layout with a summary footer for any topic — fill it during class, then cover the notes and answer your own cues. 🧠Memory KitTurns any ordered list into an acronym and a first-letter sentence, and chunks long numbers into fours — the three tricks memorists actually use. 📖Reading Pace CalculatorType the page count, where you are and the deadline: get the daily pages needed, a pace table, and whether 15 a day saves you or dooms you.

Shelves instead of a wall

City-to-city Distances, Coordinates & Position, Antipodes, Numbers & Maths, Money, Rates & Shopping, Health, Body & Fitness, Date & Time, Developer & Data Tools, Text, Words & Writing, Study & Learning, Colour, Images & Files, Everyday Tools. Every tool on tukuk.org belongs to exactly one of them, and each shelf lists its tools sixty at a time — the same links the hub would have carried all at once, in pieces a person can actually read.