Utility Tools

Useful everyday browser utilities for calculations, formatting, and random generation.

Random Number Generator

Generate random numbers between ranges.

Dice Roller

Roll virtual dice for games.

Random Name Picker

Pick random names from a list.

QR Code Generator

Generate QR codes from text or URLs.

QR Code Scanner

Scan QR codes using your browser.

Barcode Generator

Generate barcodes for products.

Timestamp Converter

Convert Unix timestamps into human-readable dates.

Unit Converter

Convert between common measurement units.

Percentage Calculator

Calculate percentages easily.

Color Code Converter

Convert HEX, RGB, and HSL color codes.

Advanced Dice Roller

Roll dice with full notation support: XdY+Z, keep highest/lowest, exploding dice.

QR Code Batch Generator

Generate multiple QR codes at once from a list of URLs or text values.

vCard QR Generator

Create a contact card QR code that phones can scan to add contacts directly.

WiFi QR Generator

Generate a WiFi QR code that lets phones connect to your network by scanning.

Age Calculator

Calculate age from a birthdate with breakdowns in years, months, and days.

BMI Calculator

Calculate your Body Mass Index from height and weight. Supports metric (kg/cm) and imperial (lbs/ft) units.

Energy Converter

Convert between joules, kilojoules, calories, kilocalories, kWh, BTU, and electronvolts instantly.

Loan Calculator

Calculate monthly loan payments, total interest, and total cost from principal, rate, and term.

Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal bases instantly.

Random Date Generator

Generate random dates within a specified range with options for count, format, and time.

Roman Numeral Converter

Convert integers (1–3999) to Roman numerals and Roman numerals back to integers instantly.

Speed Converter

Convert between mph, km/h, m/s, knots, ft/s, and Mach number. Reactive multi-field converter.

Temperature Converter (Advanced)

Convert between all 8 temperature scales: Celsius, Fahrenheit, Kelvin, Rankine, Delisle, Newton, Réaumur, and Rømer.

Time Duration Calculator

Calculate time between two dates or add/subtract a duration from a date and time.

ISO Date Converter

Convert any date into ISO 8601 format plus UTC, local, date-only, time-only, and weekday representations, instantly and for free.

Countdown Timer Generator

Generate a live, embeddable HTML countdown timer for any target date. Copy & paste the snippet into any website — free, no scripts required.

Week Number Calculator

Get the ISO 8601 week number, US week number, day of year, and days remaining for any date. Free online week-number tool.

Duration Formatter

Turn raw seconds, milliseconds, minutes, or hours into human-friendly durations.

Advanced Timezone Converter

Convert a single moment across many IANA timezones at once.

Working Days Calculator

Calculate the number of working days between two dates, excluding weekends and custom holidays.

Random Time Generator

Generate random time values (HH:MM or HH:MM:SS) within a range, in 12 or 24-hour format.

Timezone Difference Calculator

Calculate the difference in hours and minutes between two IANA timezones.

Unix Timestamp Generator

Generate the current Unix timestamp, convert any date to one, or create batches of random timestamps.

Date Format Converter

Convert dates between any formats: ISO 8601, US, EU, RFC, custom patterns, and Unix timestamps.