Simple tools to get things done in seconds.
Free everyday calculators, converters, and utilities. No accounts, no downloads, and 100% private in your browser.
All Available Tools
11Work Hours Calculator
Add up your shift hours, breaks, and overtime to calculate your exact paycheck.
Image Converter
Convert iPhone photos (HEIC), WebP, or PNG to high-quality JPG in 1 click.
Date Calculator
Count calendar days and business workdays between any two dates.
Pomodoro Timer
Customizable Pomodoro timer with flexible focus and break intervals tailored to your workflow.
Probationary Period Calculator
Calculate the exact date your workplace probation period ends.
Color Palette
Create matching color schemes and copy HEX/RGB codes for your creative projects.
Notes & Clipboard
Save text snippets and quick notes in your browser so you never lose them.
Unit Converter
Quickly convert kilograms to pounds, Celsius to Fahrenheit, meters to feet, and more.
Average & Stats Calculator
Paste a list of numbers to calculate the average, median, totals, and spread.
Symbols & ALT Codes
Find and copy symbols like ©, ®, arrows, math signs, and emojis with one click.
QR Code Generator
Create custom QR codes for links, Wi-Fi, WhatsApp, and contacts that never expire.
¿Por qué usar Listos.app?
Diseñado para ser la forma más rápida y respetuosa de hacer tus tareas.
🔒 100% Private & Secure
Your photos, work hours, and notes never leave your device. Everything is processed directly inside your browser.
⚡ No Signup Required
Open any utility and use it immediately with zero passwords, emails, or subscriptions.
📱 Mobile & Desktop Friendly
Clean interface with large touch targets, tailored to work smoothly on smartphone, tablet, or desktop.
📚 Productivity Guides & Articles
Learn useful tips to optimize your work hours, files, and daily tasks.
Practical Productivity Use Cases for Daily Work
Learn how to organize shifts, breaks, and daily calculations to save time every single day.
How to Use the Pomodoro Technique to Prevent Burnout
Learn how to structure your work sessions and rest intervals to sustain mental energy and prevent burnout.
Complete Guide to Workplace Probation Periods
Understand how the 9 months or 273.75 days of probation are calculated and employee rights.
Why and How to Convert iPhone HEIC Photos to JPG or WebP
Fix compatibility issues when sending iPhone photos to Windows, government forms, and websites.