Real-Time Decibel Sound Meter

Generate single or multiple random numbers between a custom minimum and maximum range.

Instantly calculate your exact age in years, months, and days based on your birthdate.

Quickly calculate your Body Mass Index (BMI) to evaluate your weight. Free, fast, and completely secure online tool.

Quickly find out the final price of an item after applying a percentage discount.

Quickly calculate restaurant tips and split the total bill among multiple people.

Pick two calendar dates and instantly find out exactly how many days are between them.

Easily convert temperatures between Celsius, Fahrenheit, and Kelvin. Free, fast, and completely secure online tool.

Quickly calculate percentages for discounts, tips, margins, and more. Free, fast, and completely secure online tool.

Calculate monthly EMI payments for loans based on principal, interest rate, and tenure.

A beautiful digital stopwatch with Start, Stop, Reset, and Lap functionality.

Generate random alphanumeric strings of any length for passwords, IDs, or tokens.

Easily add or subtract hours, minutes, and seconds to calculate durations.

Convert seamlessly between Metric and Imperial length units (meters, feet, inches, etc.).

Convert seamlessly between Metric and Imperial weight units (kilograms, pounds, ounces, etc.).

Convert between various speed units (km/h, mph, m/s, knots). Free, fast, and completely secure online tool.

Convert between Bytes, KB, MB, GB, TB, and other digital storage units.

Convert numeric digits (e.g. 123) into English words instantly. Free, fast, and completely secure online tool.

Convert regular numbers to Roman numerals and vice versa. Free, fast, and completely secure online tool.

Calculate profit margin percentages from cost and revenue values. Free, fast, and completely secure online tool.

Convert between Bytes, KB, MB, GB, TB. Free, fast, and completely secure online tool.

Convert and compare times across different global timezones. Free, fast, and completely secure online tool.

Generate random names (first and last). Free, fast, and completely secure online tool.

Calculate future value of investments with compound interest. Free, fast, and completely secure online tool.

Instantly find your public IPv4/IPv6 address and your ISP details. Free, fast, and completely secure online tool.

Detect and parse your browser, operating system, and device from your User-Agent string.

Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure to plan your diet.

Test your typing speed and accuracy in Words Per Minute (WPM) with a fun interactive test.

Convert bytes, kilobytes, megabytes, gigabytes, and terabytes with binary and decimal bases.

Tap tempo BPM detector and precise audio metronome with adjustable beats per minute and time signatures.

Precise millisecond stopwatch with split lap timing, lap delta calculation, and clean export.

Calculate road trip fuel expenses, gas mileage consumption per distance, and total fuel cost.

Universal converter for length, temperature, weight, volume, pressure, and energy units.

Convert world fiat currencies (USD, EUR, GBP, NPR, INR, JPY, CAD, AUD) with exchange rate estimates.

Convert time values between milliseconds, seconds, minutes, hours, days, weeks, and years.

Convert land and surface areas between square meters, square feet, acres, hectares, and ropani.

Convert fluid volume units between liters, milliliters, US gallons, fluid ounces, and cubic meters.

Generate standard 1D barcodes (Code128, EAN-13, UPC-A, Code39) with downloadable SVG and PNG formats.

Generate creative, cool, aesthetic, and unique usernames for gaming, social media, and developer profiles.

Boost study and work productivity with 25-minute Pomodoro focus intervals and break reminders.

Organize daily tasks, track priority checklists, and save goals locally in your browser storage.

Write, edit, and export quick notes, memos, and code snippets with live auto-saving.

Calculate GST and VAT tax amounts (exclusive and inclusive pricing) with instant net breakdown.

Build positive daily routines, track streak counts, and visualize productivity habits locally.

Create printable professional invoices with tax calculations, company branding, and PDF export.

Track live current times across global time zones (Kathmandu, New York, London, Tokyo, Sydney).

Calculate gross profit margins, markup percentages, revenue targets, and return on investment (ROI).

Flip a 3D virtual coin with realistic probabilities for quick random decisions and games.

Roll multiple 3D virtual dice (D4, D6, D8, D10, D12, D20) with random fair probability outcomes.

Pick a random winner, item, or lucky name from custom lists with fair randomization algorithms.

Create live countdown timers for birthdays, product launches, new year, and upcoming events.

Encode text into Morse dots and dashes or decode Morse signals back into clear readable English.

Practice musical instrument rhythm and BPM tempo with accurate visual pulse and audio clicks.

Calculate daily maintenance calories (TDEE) and optimal calorie deficits for safe, sustainable fat loss. Free online nutrition calculator.