All Tools
Every free utility on SmartDayTools, organized by category. Click any tool to open it — no signup, no install.
Time Tools
View all →Free online stopwatch with lap times. Start, stop and reset in one click — runs in your browser with no install.
Free online countdown timer for study, cooking, workouts and meetings. Set any duration and get notified when time's up.
Live world clock with every major time zone — New York, London, Tokyo, Dubai, India (IST), Sydney and more. Updates every second.
Live countdown to upcoming festivals and events — Christmas, New Year, Diwali, Eid and more. See days, hours, minutes and seconds remaining.
Convert any time between time zones — India (IST), New York (EST), London (GMT), Tokyo, Dubai, Sydney and more. Free and instant.
Internet Tools
View all →Instantly see your public IP address, city, region, country and ISP. Free, private and runs entirely in your browser.
Test your real internet speed in seconds. Measure download speed from your browser — no app, no signup.
Look up DNS records (A, AAAA, MX, TXT, NS, CNAME) for any domain. Free, instant DNS checker powered by Google Public DNS.
See your browser's user-agent string, platform, language, screen size, time zone and more. Free, private, instant.
Generate strong, random, secure passwords with letters, digits and symbols. Free, private — runs entirely in your browser.
Converters
View all →Convert any currency with live exchange rates — USD, EUR, GBP, INR, JPY and more. Free and updated daily.
Convert length, weight and temperature instantly. Metric to imperial and back — kilometres, miles, kilograms, pounds, Celsius, Fahrenheit.
Convert between meters, kilometres, miles, feet, inches and centimetres instantly. Free and accurate.
Convert kilograms to pounds, grams to ounces and back. Free online weight & mass converter.
Convert Celsius to Fahrenheit, Fahrenheit to Celsius and Kelvin. Free, instant temperature conversion.
Calculators
View all →Free online calculator for everyday math — addition, subtraction, multiplication, division and percentages. Works in your browser.
Calculate your exact age in years, months, days, weeks and hours from your date of birth. Free, instant, no signup.
Calculate your Body Mass Index (BMI) in metric or imperial units and see your weight category. Free and instant.
Free percentage calculator — find X% of Y, what percent X is of Y, increases and decreases. Works in your browser.
Calculate monthly loan payments (EMI), total interest and total repayment for personal, auto and home loans. Free and instant.
Calculate the tip on any bill and split the total between any number of people. Free, instant, no signup.
Calculate the final sale price and the amount you save on any discounted item. Free percentage-off calculator.
Calculate the number of days between two dates, or add/subtract days from a date. Free online date calculator.