Collection of the Most Practical Free Online Tools
Providing convenient, fast, and efficient tools to meet your needs anytime!
Finance & Investment
Mortgage Calculator
Provides a mortgage calculator including principal and interest repayment, principal-only repayment, and more.
Car Loan Calculator
Enter loan amount, interest rate, and term to instantly calculate monthly payments, total repayment, and total interest.
Credit Card Installment & Interest Calculator
Calculates credit card installment payments and revolving interest.
Credit Loan Calculator
Enter loan amount, interest rate, and term to instantly calculate monthly payments, total repayment, and total interest.
Compound Interest Calculator
Easily calculate the future value of regular investments or compound interest.
Metaphysics & Date
Lunar Calendar
Quickly check daily auspicious times, solar terms, astrology, and more.
Lunar-Gregorian Converter
Enter a Gregorian or lunar date to convert between them.
Astrology Chart Calculator
Analyze your birth chart to understand your rising sign, houses, and planetary positions.
Date Calculator
Calculate dates by adding or subtracting days.
Health & Sports
Sleep Time Calculator
Accurately calculate the best sleep and wake-up times.
Pace Calculator
Calculate running or cycling race paces with detailed recommendations.
RM Calculator
A tool for athletes to calculate their one-rep max.
Chronic Prescription Calculator
Enter your visit date and interval to determine the next prescription refill date.
Calorie Deficit Calculator
Calculate BMR, TDEE, and daily calorie deficit to create a science-based weight loss plan.
VO2 Max Calculator
Calculate your VO2 Max using the Cooper Test.
TDEE & BMI Calculator
Calculate your BMI, BMR, TDEE and get calorie recommendations for bulk or cut.
Pets
Pet Calorie & Feeding Calculator
Calculate daily calorie needs and feeding amounts for dogs and cats.
Pet to Human Age Converter
Convert cat and dog ages to human years with life stage labels.
Pet Supplies Budget Planner
Estimate monthly food and litter usage and costs.
Pet Food Safety Checker
Can my pet eat this? Check food toxicity levels for dogs and cats instantly.
Pet Chocolate Toxicity Calculator
Input pet weight, chocolate type, and amount to calculate toxicity levels and advice.
Media & Entertainment
YouTube Video Downloader
Download YouTube videos and audio in various formats (MP4, MP3, WebM).
Text & Symbols
Emoji Symbols
Provides various emojis for chatting fun.
Special Symbols
Offers a variety of special symbols for text editing.
Kaomoji (Facemood)
Provides a variety of kaomoji for more expressive chatting.
Simplified-Traditional Converter
Convert between simplified and traditional Chinese characters.
Case Converter
Easily convert text between uppercase and lowercase.
Word Count Tool
Enter text to get statistics on word count, characters, and lines.
Number to Uppercase Converter
Convert Arabic numbers to uppercase Chinese numerals.