Free Online Tools
Free Web Tools
Use everyday tools like a character counter, percentage calculator, date calculator, and password generator directly in your browser.
Your input stays in your browser and is not uploaded or stored.
Tool Categories
Text Tools
Count characters and words, remove spaces, and convert letter case.
Calculators
Calculate percentages, discounts, VAT, dates, BMI, margins, compound interest, and loan interest.
Converters
Convert temperature, length, weight, pyeong, and time values into the format you need.
Generators
Generate passwords, random numbers, random strings, UUIDs, QR codes, and lotto numbers.
Developer Tools
Handle JSON, Base64, URL encoding, and CSV/JSON conversion tasks quickly.
Electronics Calculators
Calculate common electronics values such as Ohms law, voltage divider output, LED resistor values, battery life, RC/RL filters, and reactance.
Image Tools
Resize, compress, crop, rotate, watermark, mosaic, and convert images directly in your browser.
Featured Tools
Character Counter
Count characters, words, lines, and characters without spaces.
Remove Spaces
Remove extra spaces, leading and trailing spaces, or line breaks.
Case Converter
Convert English text to uppercase, lowercase, or title case.
Percentage Calculator
Calculate percentages, ratios, increases, and decreases.
Discount Calculator
Enter the original price and discount rate to calculate the final price.
VAT Calculator
Calculate supply amount, VAT, and total amount.
Date Calculator
Calculate days between dates or dates before and after a base date.
D-Day Calculator
Check days remaining until a target date or days passed since it.