All Free Tools Directory

Browse over 500 online calculators, converters, and utilities

All Calculators Finance & Money Math & Algebra Health & Fitness Date & Time Age & Birthday Converters Percentage Tools Business & Sales Text Tools Writing & Content Developer Tools Web & Internet SEO & Marketing Image Tools PDF Utilities File Tools Security & Privacy Password Tools Color Tools CSS Generators HTML Tools JSON Tools XML Tools CSV Tools Unit Converters Time Zone Tools Education & Learning Student Tools Random Generators Generators Productivity Tools Social Media Tools Marketing Tools YouTube Tools Image & Graphic Tools Data & Statistics Network & IP Tools Encoding Tools Decoding Tools Utility & Everyday Audio & Media
G

Gram to KG Converter

Convert g to kg instantly with verified scientific precision and formula explanation.
H

HSL to HEX Color Converter

Free online HSL to HEX Color Converter providing instantaneous results, detailed explanations, and zero installation.
A

Age Calculator

Calculate your exact age in years, months, days, hours, and minutes with leap year precision and birthday countdown.
F

File Size Units Converter (KB, MB, GB)

Use our free online File Size Units Converter (KB, MB, GB) for quick calculations, verifiable formulas, and complete data privacy.
W

Word Counter & Text Analyzer

Count words, characters (with/without spaces), sentences, paragraphs, reading time, and speaking time in real-time.
H

Hash Generator (MD5, SHA-1, SHA-256, SHA-512)

Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-512) for any text in real-time.
A

Acre to Hectare Converter

Convert acre to ha instantly with verified scientific precision and formula explanation.
R

RGB to CMYK Print Color Converter

Free online RGB to CMYK Print Color Converter providing instantaneous results, detailed explanations, and zero installation.
L

Lottery Lucky Number Generator

Free online Lottery Lucky Number Generator providing instantaneous results, detailed explanations, and zero installation.
W

Modern WebP Image Converter

Use our free online Modern WebP Image Converter for quick calculations, verifiable formulas, and complete data privacy.
B

Base64 Data URI to Downloadable Image

Use our free online Base64 Data URI to Downloadable Image for quick calculations, verifiable formulas, and complete data privacy.
S

SVG to PNG Rasterizer Converter

Use our free online SVG to PNG Rasterizer Converter for quick calculations, verifiable formulas, and complete data privacy.
P

PDF to Text Extractor Tool

Use our free online PDF to Text Extractor Tool for quick calculations, verifiable formulas, and complete data privacy.
B

Birthday Countdown

Live countdown timer showing days, hours, minutes, and seconds until your upcoming birthday.
L

Leap Year Birthday Calculator

Calculate official and actual birthdays for people born on February 29.
C

Chronological Age Calculator

Standard clinical and educational chronological age calculation in years, months, and days.
K

Korean Age Calculator

Calculate traditional Korean age, counting age, and modern international age.
D

Dog Age Calculator

Convert dog age to human years considering small, medium, large, and giant breed weight categories.
P

Pet Age Calculator

Convert age of horses, rabbits, birds, hamsters, and guinea pigs into human equivalent years.
C

Chinese Zodiac Calculator

Find your Chinese zodiac animal sign, element, and lucky traits from your birth year.
G

Generation Calculator

Find out your demographic generation (Gen Alpha, Gen Z, Millennial, Gen X, Baby Boomer).
T

Time Calculator

Add or subtract time expressions (hours, minutes, seconds) with instant result.
W

Working Days Calculator

Calculate exact business days and working hours between two dates, excluding weekends.
D

Day of the Week Calculator

Determine which day of the week any past or future historical date falls on.