Utility Tools
113 tools — calculators, converters, timers, generators and everyday utilities. Free, no signup.
Quick picks
Calculators
25 toolsEveryday maths, money and health calculators — percentages, EMI, GST, BMI and more.
Maths & Numbers
13Basic Calculator
Simple online calculator for basic arithmetic operations
Scientific Calculator
Advanced scientific calculator with trigonometry and logarithms
Percentage Calculator
Calculate percentages, percentage change and percentage of a number
Average Calculator
Calculate mean, median, mode and range of a set of numbers
Fraction Calculator
Add, subtract, multiply and divide fractions with step-by-step results
Ratio Calculator
Calculate and simplify ratios or find the missing value in a proportion
Factorial Calculator
Calculate factorial of any number (n!)
Matrix Calculator
Add, multiply and find determinants of 2x2 and 3x3 matrices
Equation Solver
Solve linear and quadratic equations step by step
Probability Calculator
Calculate basic probability, combinations and permutations
Prime Number Checker
Check if any number is prime and find its factors
Prime Number Generator
Generate a list of prime numbers up to any limit
GPA Calculator
Calculate GPA on 4.0 or 10.0 scale from your course grades
Money & Finance
10EMI Calculator
Calculate monthly EMI for home, car or personal loans
Loan Calculator
Calculate total loan cost, interest and repayment schedule
Compound Interest Calculator
Calculate compound interest growth for savings and investments
GST Calculator
Calculate GST-inclusive and GST-exclusive prices for any amount
Discount Calculator
Calculate discounted price and savings from a percentage off
Tip Calculator
Calculate tip amount and split the bill between multiple people
Profit Margin Calculator
Calculate gross profit margin, net profit and markup percentage
ROI Calculator
Calculate Return on Investment for any project or marketing campaign
Fuel Cost Calculator
Calculate fuel cost for any trip based on distance and fuel efficiency
Electricity Bill Calculator
Estimate electricity bill from appliance usage and rate per kWh
Converters
23 toolsUnits, currency, number bases, character encodings and colour formats.
Units & Currency
9Unit Converter
Convert between all common units: length, weight, area, volume, speed and more
Length Converter
Convert between meters, feet, inches, miles, km and more
Weight Converter
Convert between kg, pounds, ounces, grams, tons and more
Area Converter
Convert between sq ft, sq m, acres, hectares and other area units
Volume Converter
Convert between liters, gallons, cups, ml, cubic feet and more
Speed Converter
Convert between km/h, mph, knots, m/s and other speed units
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin and Rankine
Time Converter
Convert between seconds, minutes, hours, days, weeks and years
Currency Converter
Convert between 150+ world currencies with live exchange rates
Numbers & Timestamps
4Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal bases
Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals back to numbers
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa
Time Zone Converter
Convert time between any two time zones worldwide
Character Encodings
5Unicode Converter
Convert text to Unicode code points and back
Text to ASCII
Convert text characters to their ASCII decimal and hex codes
ASCII to Text
Convert ASCII codes back to readable text characters
Morse Code Encoder
Convert text to Morse code dots and dashes
Morse Code Decoder
Decode Morse code dots and dashes back to plain text
Colour Tools
5Color Converter
Convert colors between HEX, RGB, HSL, HSV and CMYK formats
HSL to HEX
Convert HSL color values to HEX color codes
CMYK to RGB
Convert CMYK print color values to RGB screen colors
Random Palette Generator
Generate beautiful random color palettes with one click
Accessibility Color Checker
Check color combinations for WCAG AA and AAA accessibility compliance
Date & Time
13 toolsWork out ages and durations, and run countdowns, stopwatches and focus timers.
Dates & Durations
7Age Calculator
Calculate exact age in years, months and days from a birthdate
Birthday Calculator
Calculate days until your next birthday and other birthday stats
Date Difference Calculator
Calculate the number of days, weeks or months between two dates
Time Duration Calculator
Add or subtract time durations and calculate total hours and minutes
Business Days Calculator
Calculate business days between dates, excluding weekends and holidays
Leap Year Checker
Check if any year is a leap year and find the next leap year
World Clock
View current time in multiple cities and time zones at once
Timers & Clocks
6Countdown Timer
Create a countdown timer to any date or event
Stopwatch
Online stopwatch with lap time tracking
Pomodoro Timer
25/5 Pomodoro focus timer for productivity and deep work
Alarm Clock
Set an online alarm clock with sound in your browser
Meeting Timer
Time your meetings with agenda items and speaker limits
Focus Timer
Block distractions and stay focused with a customizable work timer
Random & Generators
23 toolsRandom numbers, picks and rolls, placeholder data, and fancy text styles.
Random & Pickers
11Random Number Generator
Generate random numbers in any range with custom options
Random String Generator
Generate random alphanumeric strings of any length
Random Date Generator
Generate random dates within a specified date range
Random Color Generator
Generate random hex colors, palettes or color schemes
Random Emoji Generator
Generate random emoji or get a random set of emojis
Dice Roller
Roll one or multiple dice (d4, d6, d8, d10, d12, d20) online
Coin Flip
Flip a virtual coin and get heads or tails
Lottery Number Generator
Generate random lottery numbers for Powerball, Mega Millions and more
Random Picker
Pick a random item from a list — great for decisions and giveaways
Decision Maker
Spin the wheel and let the decision maker choose for you
Name Picker Wheel
Spin a randomizer wheel to pick a random name from your list
Names & Fake Data
6Random Name Generator
Generate random first names, last names or full names
Username Generator
Generate unique and creative usernames from keywords
Nickname Generator
Generate fun and creative nicknames based on your name or topic
Fake Address Generator
Generate realistic fake street addresses for testing and prototyping
Fake Phone Generator
Generate random fake phone numbers for testing purposes
Fake Email Generator
Generate temporary fake email addresses for forms and testing
Fancy Text & Emoji
6ASCII Art Generator
Convert text to ASCII art using different font styles
Fancy Text Generator
Convert normal text to fancy Unicode font styles for social media
Stylish Font Generator
Transform text into stylish Unicode fonts for Instagram and Twitter bios
Glitch Text Generator
Generate glitchy and distorted text effects for creative use
Zalgo Text Generator
Generate creepy Zalgo text with combining diacritical marks
Emoji Picker
Browse and copy any emoji with search and category filters
Data, Network & QR
22 toolsEncode and hash strings, inspect JSON/CSV/XML, check your connection, make QR codes.
Encoding & Hashing
9Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text
URL Encoder / Decoder
Encode or decode URLs and query parameters for safe use in web requests
Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text
SHA1 Generator
Generate SHA-1 cryptographic hash from any text or string
SHA512 Generator
Generate SHA-512 cryptographic hash from any text
Checksum Generator
Generate CRC32 and other checksums to verify file integrity
UUID Generator
Generate unique UUIDs (v4) for use in databases, APIs and software
UUID Validator
Validate whether a string is a valid RFC-4122 UUID
Regex Tester
Test and debug regular expressions with live matching and highlighting
Data Viewers
3Network & Browser
6My IP Address
Find your current public IP address and location information
Geo IP Lookup
Find geolocation, country, city and ISP for any IP address
MAC Address Lookup
Look up the manufacturer and vendor of any MAC address
Port Checker
Check if a specific port is open or closed on any host
Internet Speed Test
Test your internet download and upload speed directly in the browser
Browser Info Checker
View detailed information about your browser, OS and screen resolution
QR & Barcode
4WiFi QR Generator
Generate a QR code to share your WiFi network credentials instantly
Event QR Generator
Create a QR code for calendar events (vCalendar format)
Payment QR Generator
Generate UPI payment QR codes for India and similar payment systems
Barcode Scanner
Scan and decode barcodes from an image or live camera feed
Productivity & AI
7 toolsPlan your day, track habits, and let AI name things or break a tie for you.
Planning & Tracking
2AI Helpers
5AI Name Generator
Generate creative names for brands, apps, products or characters with AI
AI Username Generator
Generate unique and memorable usernames using AI
AI Prompt Generator
Generate effective AI prompts for ChatGPT, Midjourney and other AI tools
AI Idea Generator
Brainstorm creative ideas for any topic, project or problem with AI
AI Decision Helper
Get AI-powered analysis and suggestions to help make difficult decisions
About Utility Tools
ToolHub’s utilities are the small everyday tools that don’t belong to any one file format — calculators for maths, loans, taxes and health, converters for units, currency, number bases and colour, timers and date calculators, random generators, encoders and hashers, and quick network checks.
Each one is a single-purpose page that loads instantly and works without an account. Most run entirely client-side, so the numbers and text you type stay on your device — handy when you’re working out an EMI, hashing a string or checking a regex pattern.
Common use cases include converting units while cooking or shopping, working out loan repayments and GST, timing a focus session, generating placeholder data for a demo, decoding a Base64 string, or creating a WiFi QR code for guests.
Frequently asked questions
Are ToolHub utilities really free?
Yes — every calculator, converter, timer and generator here is free with no signup. A handful of AI-assisted helpers are marked Pro.
Do these tools work offline or send my data anywhere?
Most utilities (calculators, converters, timers, encoders) run entirely in your browser, so the values you type never leave your device. Network tools like IP lookup and speed test necessarily make a request.
Which converters are supported?
Length, weight, area, volume, speed, temperature, time and currency, plus number bases, Roman numerals, Unix timestamps, time zones, Unicode/ASCII, Morse code and colour formats.
Can I generate placeholder data for testing?
Yes — the fake name, username, address, phone and email generators produce realistic placeholder data, and the random string/number generators cover test fixtures.
Is there a QR code generator?
Yes — dedicated generators for WiFi, event and payment QR codes, plus a barcode scanner for reading existing codes.