Free Online Tools

Fast, free, and easy-to-use calculators, converters, and utilities for everyday tasks

Why Use Our Tools?

100%
Free to Use
No
Registration Required
Instant
Results
Mobile
Friendly

📏 Converters Popular

🔄
Unit Converter Popular
Convert between length, weight, temperature, area, volume, speed, and data storage units instantly.
  • 7 unit categories
  • 50+ unit conversions
  • Instant results
  • Swap functionality
🌍
Time Zone Converter New
Convert time between different cities and time zones worldwide with business hours indicator.
  • 19 major cities
  • World clock display
  • Business hours check
  • Date & time conversion
💱
Currency Converter New
Convert between 160+ world currencies with live exchange rates updated daily.
  • 160+ currencies
  • Live exchange rates
  • Swap currencies
  • Popular conversions

🧮 Calculators New

⚖️
BMI Calculator
Calculate your Body Mass Index and get health recommendations based on your results.
  • Metric & Imperial units
  • Health recommendations
  • Category classification
  • Visual results
📊
Percentage Calculator
Calculate percentages, percentage increase/decrease, discounts, and more.
  • 5 calculation modes
  • Instant results
  • Step-by-step explanations
  • History tracking
📅
Age Calculator
Calculate your exact age in years, months, and days from your birth date.
  • Precise calculations
  • Total days lived
  • Zodiac sign
  • Next birthday countdown

💻 Developer Tools

💾
Data Converter New
Convert data between JSON, CSV, and XML instantly in your browser.
  • JSON, CSV, XML
  • Convert in any direction
  • Download or copy
  • Nothing uploaded
🎨
Color Converter
Convert between HEX, RGB, HSL, and HSV color formats for web design.
  • HEX, RGB, HSL, HSV
  • Color preview
  • Instant conversion
  • Copy results
🧩
JSON Formatter & Validator
Format, minify, and validate JSON with instant error detection.
  • Pretty print
  • Minify
  • Error detection
  • Copy results
🔐
Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to text instantly.
  • Encode to Base64
  • Decode to text
  • UTF-8 support
  • Swap input/output
🔑
Password Generator
Create strong, secure random passwords with customizable options.
  • Custom length
  • Character options
  • Strength meter
  • Copy to clipboard
🔍
Regex Tester New
Test regular expressions with live matching, flags, capture groups, and highlighted results.
  • Live matching
  • Capture groups
  • All regex flags
  • Highlighted results
🔗
URL Encoder / Decoder New
Encode URLs to percent-encoded format or decode encoded URLs back to readable text.
  • Encode / decode
  • Instant conversion
  • Swap input/output
  • Copy results
🆔
UUID Generator New
Generate random UUIDs (version 4) with bulk support and multiple formats.
  • UUID v4 standard
  • Bulk generation
  • Multiple formats
  • Copy individual or all
#️⃣
Hash Generator New
Calculate SHA-256, SHA-1, and MD5 hashes from any text input instantly.
  • SHA-256, SHA-1, MD5
  • Instant results
  • Copy each hash
  • UTF-8 support

💵 Financial Calculators New

📈
Compound Interest Calculator
Calculate how your investments grow over time with compound interest and monthly contributions.
  • Monthly contributions
  • Year-by-year breakdown
  • Multiple frequencies
  • Total interest earned
🏦
Loan Calculator
Calculate monthly payments, total interest, and full amortization schedule for any loan.
  • Monthly payment
  • Amortization schedule
  • Mortgage & auto loans
  • Total interest cost
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🏥 Health & Fitness

🍎
Calorie Calculator Coming Soon
Calculate your daily calorie needs based on your activity level and goals.
  • BMR calculation
  • Activity levels
  • Goal settings
  • Macronutrients
❤️
Heart Rate Calculator Coming Soon
Calculate your target heart rate zones for optimal exercise intensity.
  • Max heart rate
  • Training zones
  • Resting heart rate
  • Intensity guide
💧
Water Intake Calculator Coming Soon
Calculate your daily water intake needs based on your body and activity.
  • Personalized goals
  • Activity adjustment
  • Climate factors
  • Tracking reminders

🚀 More tools are being added regularly. Bookmark this page for the latest free online tools!

All tools are free to use and work on all devices.

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