Little tools for everyday.
Quick everyday helpers, focus timers and a few fun generators — all running locally in your browser.
Tip Calculator
Split the bill and the tip across any number of people.
The bill
Discount Calculator
See the sale price and exactly how much you save.
Inputs
Fuel Cost Calculator
Estimate the fuel cost of a trip from distance, mileage and price.
Trip
Pomodoro Timer
25-minute focus sprints with short breaks. Stays running while the tab is open.
Countdown Timer
Count down to any date and time.
Target
QR Code Generator
Turn text, a URL or contact details into a downloadable QR code.
Content
QR code
Barcode Generator
Generate CODE128, EAN-13 and other common barcodes.
Content
Barcode
QR Code Scanner
Scan QR codes with your camera or from an image (Chrome/Edge).
Text Similarity Checker
Jaccard and cosine similarity between two texts.
Compare
ASCII Art Generator
Simple block-letter ASCII for short words.
Sleep Calculator
Ideal bedtimes for a given wake-up time (90-min cycles).
Wake at
GPA Calculator
Weighted GPA from courses and grades.
Time Zone Converter
See the same moment in two time zones.
Unit Price Calculator
Compare value per unit when shopping.
Package
Electricity Bill Estimator
Rough bill from units consumed and tariff.
Usage
Date Calculator
Add or subtract days, weeks, months or years from a date.
Calculate
Aspect Ratio Calculator
Width, height and nearest common ratio.
Dimensions
Screen Resolution Checker
Your display size, pixel ratio and colour depth.
File Size Converter
Convert between B, KB, MB, GB and TB (binary).
Meme Generator
Add classic top/bottom captions to an image and download it.