All Free Tools
200+ powerful tools across 11 categories calculators, converters, developer tools, free courses, and more
đ Calculators
Essential calculation tools for everyday use
BMI Calculator
Calculate Body Mass Index instantly
đAge Calculator
Calculate exact age in years, months, days
đĻLoan EMI Calculator
Calculate monthly EMI payments
đˇī¸Discount Calculator
Calculate discounted prices instantly
đ¯Percentage Calculator
Quick percentage calculations
đŦScientific Calculator
Advanced math â sin, cos, log, sqrt, power
đGPA Calculator
Calculate your GPA with credits, grades & 4.0 scale chart
đ°Income Tax Calculator
Calculate your net salary after tax
đMortgage Calculator
Calculate your monthly mortgage payments
đCompound Interest Calculator
Calculate compound interest with custom compounding frequency
đŧInvestment Calculator
Calculate future value of investments with regular contributions
đī¸Retirement Calculator
Plan for your financial future with retirement projections
đ¯Savings Goal Calculator
Calculate how much to save regularly to reach your savings goal
đROI Calculator
Calculate return on investment for your projects or investments
đProfit Margin Calculator
Calculate profit margin percentage for your business or products
âī¸Break-Even Calculator
Calculate the point at which your business will break even
đĒŖVAT Calculator
Calculate Value Added Tax for your business transactions
đTip Calculator
Calculate tip amounts for your dining experience
âŋCrypto Profit Calculator
Calculate your cryptocurrency profit or loss
đStock Profit Calculator
Calculate your stock market profit or loss
đŗPaycheck Calculator
Calculate your net pay and tax withholdings
đ°Net Worth Calculator
Calculate your total assets and liabilities
đDebt to Income Ratio
Calculate your debt to income ratio for financial health
đŗCredit Card Payoff
Calculate how long to pay off credit card debt
đĻLoan Refinance Calculator
Calculate savings from refinancing your loan
đCar Loan Calculator
Calculate monthly car loan payments
đStudent Loan Calculator
Calculate student loan payments
đĨBMR Calculator
Calculate your basal metabolic rate
đī¸TDEE Calculator
Calculate total daily energy expenditure
đBody Fat Calculator
Calculate your body fat percentage
đCalorie Calculator
Calculate your daily calorie needs
đĨMacro Calculator
Calculate your daily macronutrient needs
đ§Water Intake Calculator
Calculate daily water needs
đ¤°Pregnancy Due Date
Calculate estimated due date
đ¸Ovulation Calculator
Calculate most fertile days
đ´Sleep Cycle Calculator
Calculate optimal wake up times
đQuadratic Solver
Solve quadratic equations step by step
âFraction Calculator
Perform calculations with fractions
âī¸Ratio Calculator
Simplify ratios and find missing values
đStandard Deviation
Calculate standard deviation for data sets
đDate Duration Calculator
Calculate the duration between two dates
đAdd/Subtract Days Calculator
Calculate dates by adding or subtracting days
đLeap Year Checker
Check if a year is a leap year
đWorkday Calculator
Calculate working days between two dates
âī¸ Converters
Convert between different units instantly
Unit Converter
Convert length, mass, volume & more
đąCurrency Converter
Convert between major currencies
đSpeed Converter
Convert mph, kph, knots & more
đRing Size Converter
US, UK, EU & diameter conversion
đ¨Color Converter
HEX, RGB & HSL conversion
đĩSalary to Hourly Converter
Convert annual salary to hourly wage
â°Hourly to Salary Converter
Convert hourly wage to annual, monthly, weekly salary
đPDF to JPEG Converter
Convert PDF files to high-quality JPEG images
đžJPEG to PDF Converter
Convert JPEG images to PDF documents
đPDF Merger
Combine multiple PDF files into one
âī¸PDF Splitter
Split PDF files into individual pages
đī¸Image Compressor
Reduce image file sizes without losing quality
đPNG to WebP Converter
Convert PNG images to WebP format for smaller file sizes
đSVG to PNG Converter
Convert SVG images to PNG format
đ¨Image Color Picker
Extract colors from images
01001000->HBinary to Text Converter
Convert binary code to readable text format
H->01001000Text to Binary Converter
Convert text to binary code
48->HHex to Text Converter
Convert hexadecimal to readable text format
H->48Text to Hex Converter
Convert text to hexadecimal format
âī¸đMorse Code Converter
Convert text to Morse code and vice versa
âUnix Timestamp Converter
Convert Unix timestamps to readable dates and vice versa
đĸRoman Numerals Converter
Convert numbers to and from Roman numerals
đĸRandom Number Generator
Generate random numbers within a specified range
đTime Zone Converter
Convert times between different time zones
đŧī¸PNG to JPEG Converter
Convert PNG images to JPEG format
đŧī¸PNG to JPG Converter
Convert PNG images to JPG format
đŧī¸JPEG to PNG Converter
Convert JPEG images to PNG format
32->100000Decimal to Binary Converter
Convert decimal numbers to binary format
100000->32Binary to Decimal Converter
Convert binary numbers to decimal format
FF->11111111Hex to Binary Converter
Convert hexadecimal numbers to binary format
A->1000001ASCII to Binary Converter
Convert ASCII characters to binary format
1000001->41Binary to Hex Converter
Convert binary numbers to hexadecimal format
32->20Decimal to Hex Converter
Convert decimal numbers to hexadecimal format
20->32Hex to Decimal Converter
Convert hexadecimal numbers to decimal format
âąī¸ Time Tools
Manage your time effectively
𧊠Utility Tools
Handy utilities for everyday tasks
QR Code Generator
Create QR codes for URLs & text
đPassword Generator
Generate strong secure passwords
đText Case Converter
Convert text case formats
đēYouTube Toolkit
Extract video info, thumbnails & SEO tags
đNotes Summarizer
Extract key sentences & keywords from text
đī¸Watermark Remover
Remove image backgrounds instantly
đKeyword Density Checker
Analyze keyword usage in your content
đˇī¸Meta Tag Generator
Generate optimized meta tags for your web pages
đ¤Robots.txt Generator
Generate optimized robots.txt files for your website
đēī¸Sitemap Generator
Create XML sitemaps for your website
đURL Shortener
Create short, shareable links for your content
đLorem Ipsum Generator
Generate placeholder text for your designs
đ¤Word Counter
Count words, characters, and more in your text
đĸCharacter Counter
Count characters, letters, numbers, spaces
đText Repeater
Repeat text a specified number of times
đ§šRemove Duplicate Lines
Remove duplicate lines from your text
đ¤Text Sorter
Sort lines in your text alphabetically
đReverse Text Generator
Reverse your text in various ways
âī¸Remove Extra Spaces
Remove leading and trailing spaces from your text
đŦSentence Counter
Count sentences in your text
âFavicon Generator
Create favicons for your website
đURL Slug Generator
Generate SEO-friendly URL slugs
đText Similarity Checker
Compare and check similarity between texts
âGoogle SERP Simulator
Preview how your pages appear in Google search results
đHTAccess Redirect Generator
Generate SEO-friendly redirect rules for your website
đUTM Link Builder
Generate trackable UTM links and QR codes
âOpen Graph Generator
Create optimized Open Graph meta tags for social sharing
đSchema Markup Generator
Generate JSON-LD schema markup for better SEO
đUser Agent Analyzer
Analyze and identify user agents for browser detection
âī¸âđĨBroken Link Checker
Find and fix broken links on your website
đ¤Random Name Picker
Generate random names for various purposes
đList Shuffle Tool
Shuffle lists with various algorithms
đ§ŽLine Counter
Count lines in your text files
đUpside Down Text Generator
Generate upside down text for fun and creativity
đģ Developer Tools
Essential tools for developers and programmers
JSON Formatter
Pretty print, validate & minify JSON
đŖBase64 Encoder/Decoder
Encode/decode Base64 text
đURL Encoder/Decoder
Encode or decode URLs
đĻCode Minifier
Minify HTML, CSS & JavaScript
đHash Generator
MD5, SHA-1 & SHA-256 hashes
đUUID Generator
Generate UUID v4 identifiers
đąDevice Preview
Test responsive design on 12+ device screens
đIP Address Finder
Find your public IP address, location, ISP
đDomain Authority Checker
Check your domain's SEO strength and authority
đPage Speed Tester
Test your website's performance
đSSL Checker
Check SSL certificate status
đDNS Lookup Tool
Perform DNS lookups for any domain
đWHOIS Lookup Tool
Check domain registration information
đRegex Tester
Test and debug regular expressions
đDiff Checker
Compare text side by side
đJWT Decoder
Decode JSON Web Tokens
â¨ī¸Typing Speed Test
Test your typing speed and accuracy
â¨JavaScript Object to JSON
Convert JavaScript objects to JSON format
đHTML Entity Encoder/Decoder
Encode and decode HTML entities
â¯â˛CSS Clip-Path Generator
Create custom clip-paths for your elements
đ§JavaScript Key Code Finder
Find key codes for keyboard events
đĨˇđŋCSS Box Shadow Generator
Create custom box shadows for your elements
đColor Shade Generator
Generate color shades and gradients
â âLorem Pixel Image Placeholder
Generate placeholder images for your designs
đŦHTML Table to JSON Converter
Convert HTML tables to JSON format
âĻâĸâāšâ ⯠â¯â āšââĸâĻString Escape/Unescape Tools
Escape and unescape strings for various formats
đ Online Language IDEs
Write, run, and debug code in multiple languages right in your browser
Practice Your Skills With ToolHub Quizzes
Free interactive quizzes to test your knowledge
C++ Programming
Master OOP, pointers, STL, and system programming. Complete guide with code examples and downloadable notes.
JavaScript (ES6+)
Async/await, closures, DOM manipulation, modern web development. 1500+ words with interactive examples.
HTML5 & CSS3
Semantic markup, flexbox, grid, responsive design. Build beautiful websites from scratch.
Java Programming
OOP, collections, multithreading, JVM fundamentals. Enterprise-level programming concepts.
PHP & MySQL
Server-side scripting, forms, sessions, database integration. Build dynamic web applications.
Python Programming
Data types, loops, functions, libraries. Perfect for beginners and data science enthusiasts.
SQL Database
Queries, joins, indexing, normalization. Master database management and data analysis.
Data Structures
Arrays, linked lists, trees, graphs, algorithms. Crack coding interviews with confidence.
Computer Science Quizzes
Test your knowledge in core computer science concepts
Computer Science Fundamentals Quiz
Memory management, CPU scheduling, and system architecture.
Algorithms Quiz
Sorting, searching, graph algorithms, and problem-solving techniques.
Operating Systems Quiz
Process management, memory management, file systems, and system design.
Computer Networks Quiz
OSI model, TCP/IP, routing protocols, network security concepts.
Compiler Design Quiz
Lexical analysis, parsing, code generation, and optimization.
Theory of Computation Quiz
Automata, formal languages, computability, and complexity.
Artificial Intelligence Quiz
Some of the key concepts in Machine learning, neural networks, natural language processing, and computer vision.
Machine Learning Quiz
Master the fundamentals of machine learning algorithms and applications.
Cloud Computing Quiz
Master the fundamentals of cloud computing concepts and services.
Distributed Systems Quiz
Master the fundamentals of distributed systems design and implementation.
Parallel Computing Quiz
Master the fundamentals of parallel computing concepts and architectures.
Embedded Systems Quiz
Master the fundamentals of embedded systems design and implementation.
Computer Architecture Quiz
Master the fundamentals of computer architecture and system design.
Software Tools Quiz
Test your knowledge of popular software development tools and technologies.
Human-Computer Interaction Quiz
Test your knowledge of human-computer interaction principles and design.
Data Mining Quiz
Test your knowledge of data mining techniques and applications.
Big Data Quiz
Test your knowledge of big data technologies and applications.
Software Engineering Quizzes
Master software development principles and methodologies
Software Engineering Quiz
Comprehensive quiz covering software engineering principles and practices.
SDLC Quiz
Understand the Software Development Life Cycle and its phases.
Design Patterns Quiz
Creational, structural, and behavioral design patterns.
Software Testing Quiz
Comprehensive quiz covering software testing principles and practices.
Agile & Scrum Quiz
Understand Agile methodologies and Scrum framework.
DevOps Quiz
Understand DevOps practices, CI/CD, and tools.
Project Management Quiz
Learn about project planning, execution, and monitoring.
Requirements Engineering Quiz
Test your knowledge of requirements elicitation, analysis, and specification.
Quality Assurance Quiz
Test your knowledge of software testing, quality metrics, and assurance processes.
Software Maintenance Quiz
Test your knowledge of software maintenance types, challenges, and best practices.
Version Control Quiz
Test your knowledge of version control systems, branching strategies, and collaboration tools.
Microservices Quiz
Test your knowledge of microservices architecture, design, and best practices.
API Design Quiz
Test your knowledge of RESTful API design principles and best practices.
System Design Quiz
Test your knowledge of system design principles and best practices.
Software Architecture Quiz
Test your knowledge of software architecture principles and best practices.
Maths Quizzes
Sharpen your mathematics skills from algebra to calculus
Aptitude Quiz
Numbers, Percentages, Ratios, Averages, Time & Work, Probability, Permutations, Data Interpretation, Puzzles.
Algebra Quiz
Variables, equations, inequalities, polynomials.
Calculus Quiz
Limits, derivatives, integrals, and their applications.
Probability Quiz
Basic probability concepts, conditional probability, Bayes' theorem.
Statistics Quiz
Descriptive statistics, inferential statistics, hypothesis testing.
Discrete Mathematics Quiz
Logic, set theory, combinatorics, graph theory.
Linear Algebra Quiz
Vectors, matrices, determinants, eigenvalues.
Numerical Methods Quiz
Vector operations, matrix algebra, numerical integration, and solving differential equations.
Trigonometry Quiz
Properties of triangles, trigonometric functions, and identities.
Geometry Quiz
Properties of shapes, angles, and spatial relationships.
Set Theory Quiz
Basic concepts of sets, relations, and functions.
Logic Quiz
Basic concepts of logic, propositions, and predicates.
Graph Theory Quiz
Fundamental concepts of graph theory and its applications.
Number Theory Quiz
Prime numbers, divisibility, and modular arithmetic.
Combinatorics Quiz
Counting principles, permutations, and combinations.
đŦ Media & Image Tools
Edit, convert, and analyze media files