Free Online Tools
For everything you need
Generators, calculators, converters, games and much more. No sign-up, no cost, instant access.
Decide and draw
Wheels, dice and quick choices
Lists and teams
Sort, split and organize people or tasks
Calculate
Percentages and quick calculations
Mathematics
Geometry and algebra step by step
Health
Health calculations and reference doses
Children Dosage Calculator
Pediatric doses by weight in mg and mL
Blood Pressure Classifier
ACC/AHA 2017 categories with JNC 8 reference
BMI Calculator
Body mass index with WHO sources
Calorie Calculator
TDEE and basal metabolic rate
Daily Water Calculator
Hydration based on your weight
Waist-Hip Ratio
Cardiovascular risk WHO standard
Due Date Calculator
EDD by Naegele's rule
Heart Rate Zones
Training zones by heart rate
HbA1c / Glucose Converter
ADA 2023 — for diabetics
Developer
Tools built for developers
JSON Formatter
Format and validate JSON instantly
.gitignore Generator
Generate .gitignore for your stack
Regex Tester
Test regular expressions
Cron Builder
Build and decode cron expressions
Base64 Encoder
Encode and decode Base64
JSON to CSV
Convert JSON to CSV for Excel
Text Formatter
Markdown editor with live preview
UUID Generator
Generate unique UUIDs v4 instantly
Password Generator
Secure passwords
PIN Generator
Random PIN codes
Web & Design
Color, QR, favicon and visual assets
Generators
Names, text and random ideas
Productivity
Focus and get more done in less time
Pomodoro Timer
Customizable Pomodoro technique
Score Counter
Keep score
SWOT Analysis
Online SWOT with PNG export
Eisenhower Matrix
Organize urgent and important tasks
Kanban Board
To do, in progress and done
Zodiac Sign Compatibility
Love, friendship and work between signs
Life Path Number
Numerology based on your birth date
Chinese Zodiac
Discover your animal and Chinese element