Free Online Web Tools

Count characters, words, and lines in real-time. Supports full-width / half-width distinction. Free online tool.

Format, prettify, and validate JSON online. Supports 2-space, 4-space, and tab indentation. Minify JSON to a single line. Free online tool.

Encode text to Base64 or decode Base64 strings back to text. Supports Unicode and URL-safe encoding. Free online tool.

Encode text to percent-encoded URL format or decode URL-encoded strings. Handles Unicode and Japanese characters. Free online tool.

Convert text to UPPER CASE, lower case, Title Case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE instantly. Free online tool.

Free online QR code generator. Create QR codes from URLs, text, Wi-Fi credentials and more. Download as PNG instantly.

Free online color converter. Convert between HEX, RGB, HSL, and HSB/HSV instantly. Color picker included.

Free secure password generator. Create strong random passwords using uppercase, lowercase, numbers, and symbols. Runs entirely in your browser.

Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds. Free online tool — runs entirely in your browser.

Convert length, weight, temperature, area, volume, and speed units instantly. Supports metric and imperial units. Free online tool — runs entirely in your browser.

Test and debug regular expressions online with real-time match highlighting, match count, and group capture details. Free online tool — runs entirely in your browser.

Calculate your exact age in years, months, and days from your date of birth. Also shows total days, weeks, and months lived, plus days until your next birthday. Free online tool.

Calculate your Body Mass Index (BMI) instantly from your height and weight. Get your weight category (underweight, normal, overweight, obese) and see how far you are from a healthy weight. Supports both metric and imperial units.

Calculate your monthly loan payment, total repayment, and total interest in seconds. Enter the loan amount, annual interest rate, and term to run a simulation. Works for mortgages, car loans, personal loans, and more.

Boost productivity with the Pomodoro Technique. Customizable 25-min work + 5-min break cycles. Tracks completed sessions and total focus time. Supports browser notifications and audio alerts. Free online timer.