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200+ Free Online Tools Pregnancy Calculators • Financial Planning • Health & Wellness • Engaging Kids' Activities

Trusted by 500,000+ users monthly for accurate due date predictions, mortgage calculations, BMI analysis, and interactive STEM games. All tools are free, no sign-up required.

Children's learning tools

Interactive Numbers 1-5 Learning Game
Fruit-themed counting challenge for early math skills (Numbers 1-5)
Interactive Numbers 1-10 Learning Game
Fruit-themed counting challenge for early math skills (Numbers 1-10)
Fruit Count and Match: Numbers 1-10
Interactive Number Learning Game for Toddlers (1-10)
Engaging Addition Game for Kids
Fruit Math Fun Addition within 10
Engaging Subtraction Game for Kids
Kids Subtraction Games Online: Practice Math Within 10 with Fruits

Pregnant women's tools

US Maternity Leave Calculator
Calculate your pregnancy leave duration,total leave days.
Hong Kong Maternity Leave Calculator
calculate prenatal leave, postnatal leave,total leave days.
Imperial Chinese Gender Chart Calculator
predicts the probability of the baby's gender
Pregnancy Due Date Calculator
Estimate delivery date, track pregnancy weeks/days
Pregnancy Calculator
gestational age in weeks+day
Fetal Weight Calculator
Fetal Weight Calculator online
Pregnancy Weight Calculator
Scientific Weight Tracker
Smart Fertility & Cycle Calculator
Predict periods, ovulation days, fertile windows and safe phases
Child Height Prediction Calculator
Predict your child's future height scientifically
Blood Type Inheritance
Advanced genetic prediction tool
Conception Date Calculator
Pregnancy Conception Date Calculator
Child Growth Calculator
Accurate analysis and height prediction for ages 0-18

Common tools

Get Off Work Countdown
work time and manage your work
Stopwatch - Precise Timing
Stopwatch supports precise single timing and lap timing
Professional Barcode Generator
Create ISO-compliant barcodes
MD5 Online Encryption
Fast & Reliable MD5 online encryption
Base64 Encoder and Decoder
Online Base64 Encoder and Decoder Tool
AES encryption decryption
efficient and secure encryption and decryption
Timestamp converter
Time and timestamps (seconds and milliseconds) converter
Text Case Converter
different case formats instantly
Online Random Password Generator
Generate highly secure random passwords
URL Encoding & Decoding Tool
converter with RFC 3986 compliance
Fancy Text Wizard
Unicode Font Converter for Social Media & Gaming
UUID Generation Tool
RFC 4122 Compliant · Full v1-v7 Support
Real-Time LED Text Generator
Create eye-catching scrolling texts for live streams

Financial Calculator

Smart Mortgage Calculator
Compare conventional, FHA, and combination loans
USD Amount to Words Converter
converting numeric amounts to financial wording in US dollars
Annualized income calculator
Professional Investment Calculator
RMB to Chinese Financial Words
converting numeric RMB to Chinese uppercase characters
Chinese Number Converter
Professional Chinese uppercase number converter tool.

Destiny, Constellation

Fingerprint fortune telling
Fingerprint fortune telling test
Life Path Number Calculator
Free Online Numerology Reading
Ancient fortune telling
Calculate destiny based on date of birth
Dream Interpretation
dream analysis, dream meaning

Health Calculator

3D BMI Calculator
3D BMI Calculator with Body Visualization
Body Fat Percentage Calculator
Accurately calculate body fat
BMR & TDEE Calculator
Professional Metabolic Analysis
Standard Body Shape Measurement
Personalized size recommendations for men and women
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