🧰 Everyday Tools

8 browser-local tools · page 1 of 1

Everyday Tools. Everything that refused to fit a subject: a QR code generator with error-correction controls and a print-ready PNG, a random-number and dice tool drawn from the cryptographic generator with rejection sampling so no face is favoured, a password generator that explains its own entropy, paint coverage, recipe scaling, download-time estimates, a keyboard tester, an IP and browser-field inspector, and odds for a dice roll.

8 tools on this shelf · 8 listed below

🔳QR Code GeneratorTurn a link, text or Wi-Fi network into a QR code in your own browser, with error-correction controls and a print-ready PNG download. 🎲Random Numbers & DiceUnbiased integers, d4–d100 dice and a raffle-style list picker — drawn from crypto.getRandomValues with rejection sampling, so nothing is favoured. ⏬Download Time CalculatorThe two-minute question answered twice: theoretical minimum and the 85%-of-line-rate figure ISPs actually let you have. 🗝️Caesar & Vigenère CipherThe ciphers history actually used — Caesar, ROT13, Atbash, Vigenère — encoded and decoded with the shift maths printed and no false security claims. 🖌️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. 👟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. 🗄️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.

How these tools work

These are the pages people need once and forget the name of, which is exactly when a search result that opens instantly and asks for nothing is worth something. Each one states the definition, formula or random source behind its answer, keeps the whole computation on your device, and stays usable with the network dead. Anything new that is not yet a subject of its own lands here as well, so the shelf doubles as the honest home for the one-off tools rather than a bin they disappear into.

Part of Everyday Tools — 8 of 1136 tools sit here. Other shelves: 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. Looking for something specific? Search the whole toolbox.