Free Online Calculators & Tools
24 fast, free tools for finance, developers and everyday life. No sign-up. No uploads. Everything runs right in your browser.
All tools
Mortgage Calculator
Estimate your monthly mortgage payment, total interest and payoff schedule.
Loan Calculator
Calculate monthly payments for car loans, personal loans and any installment loan.
Compound Interest Calculator
See how your money grows with compound interest and regular contributions.
VAT Calculator
Add or remove VAT from any price instantly.
Tip Calculator
Split the bill and calculate the perfect tip in seconds.
Investment Calculator
Project portfolio growth with compound returns and monthly investing.
JSON Formatter
Format, validate and minify JSON with precise error location.
Base64 Encoder / Decoder
Encode and decode Base64 strings with full UTF-8 support.
Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes in your browser.
UUID Generator
Generate random v4 UUIDs — one or in bulk, with one-click copy.
Regex Tester
Test regular expressions live with match highlighting and capture groups.
Unix Timestamp Converter
Convert Unix timestamps to dates and dates to timestamps.
Percentage Calculator
X% of Y, what percent X is of Y, and percentage increase/decrease.
Age Calculator
Calculate your exact age in years, months and days from your birth date.
Date Difference Calculator
Days between two dates, plus add or subtract days from any date.
BMI Calculator
Calculate your Body Mass Index with metric or imperial units.
Calorie Calculator
Daily calorie needs with the Mifflin-St Jeor equation and activity level.
Random Number Generator
Random integers in any range — single, bulk, or unique without repeats.
QR Code Generator
Create QR codes for URLs, text or Wi-Fi and download as PNG.
Password Generator
Strong random passwords with custom length and character sets.
Word Counter
Count words, characters, sentences and reading time as you type.
Image Compressor
Compress JPG, PNG and WebP images locally — files never leave your device.
PNG to JPG Converter
Convert PNG images to JPG with custom quality and background color.
Unit Converter
Convert length, weight and temperature units instantly.