21 categories · 186 tools planned
Tools that run
on your device
Measure a noise level, level a shelf, split a bill, strip the location data out of a photo. Every tool here does its work in the browser tab you already have open — so nothing you enter gets uploaded, and there is nothing to sign up for.
Available now
All toolsTip Calculator & Bill Splitter
Split any bill evenly, by item, or unevenly per person.
EverydayDiscount & Sales Tax Calculator
Stacked discounts, sales tax, and unit-price comparison.
EverydayUnit Converter
Length, weight, volume, temperature, speed, data, area and time.
EverydayFuel Cost & Road Trip Calculator
Trip fuel cost in MPG or L/100km, split between passengers.
EverydayElectricity Bill Estimator
Cost per appliance, ranked, from wattage and hours of use.
EverydayRent Split Calculator
Split rent by room size, income, or move-in date.
EverydayAge Calculator
Exact age, next birthday, and the gap between two dates.
EverydayTime Zone Meeting Planner
Find the working-hour overlap across up to eight cities.
EverydayBubble Level
A spirit level using your device tilt sensor, with calibration.
Device & SensorDecibel Meter
Measure noise with peak, average and L10, then export CSV.
Device & SensorChromatic Guitar Tuner
Cents-accurate tuning with alternate tunings and a strobe view.
Device & SensorCompass
Magnetic and true north, with bearing lock.
Device & SensorEvery category
21 hubsFiles 50
Create 35
Text & Code 38
Calculate 17
Design 26
Device 20
How this works
- Nothing is uploaded
- Files are read with the browser's own File and Canvas APIs and processed in a Web Worker on your machine. There is no server to send them to — the whole site is static files on a CDN.
- No account, ever
- There is no sign-up, no email capture, and no login wall on any page. Preferences like your theme and recent tools live in localStorage on your own device.
- No daily limits
- Because your device does the work, there is no per-user cost to meter. Use any tool as many times as you like. The real limits are your browser's memory, and each page states its own.
Start with the sensors
The device and sensor tools are the ones no other general tools site has. They read your phone's accelerometer, magnetometer and microphone directly, and they ask permission first every time.
Device & sensor tools