CodeMaster AcademyFree Online Developer & Utility Tools
Fast, secure, and entirely browser-based utilities to speed up your daily workflow.
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🔥 Most Used
QR Code Generator
Convert text or target URLs into custom downloadable high-resolution QR codes instantly.
Password Generator
Create secure, highly customized random passwords instantly to keep accounts safe.
Image Compressor
Optimize image weights and file sizes directly in browser without losses live.
BMI Calculator
Check your Body Mass Index metrics along with nutritional health tracking boundaries instantly.
Age Calculator
Calculate your exact lifespan down to the precise number of years, months, and days live.
Browse by Category
AI YouTube Title Generator
Generate catchy, click-worthy YouTube video titles from your topic and category instantly.
AI Email Writer
Generate ready-to-send professional emails for follow-ups, job applications, and meeting requests.
AI Resume Summary Generator
Generate a polished professional resume summary in seconds from your job title, experience, and skills.
AI Grammar Checker
Check your writing for spelling slips, repeated words, missing capitals, and common grammar mistakes.
Age Calculator
Calculate your exact lifespan down to the precise number of years, months, and days live.
BMI Calculator
Check your Body Mass Index metrics along with nutritional health tracking boundaries instantly.
EMI Calculator
Calculate your loan monthly breakdown payments and see total interest metrics live.
Percentage Calculator
Easily calculate percentage breakdowns, changes, and difference rates instantly.
Unit Converter
Convert metrics seamlessly between length, weight, and temperature metrics live.
Currency Converter
Convert global market currency rates instantly using live, up-to-the-minute exchange data.
Password Generator
Create secure, highly customized random passwords instantly to keep accounts safe.
QR Code Generator
Convert text or target URLs into custom downloadable high-resolution QR codes instantly.
Random Number Generator
Generate highly customized sets of unique or repeating random integers live instantly.
Lorem Ipsum Generator
Generate highly custom counts of paragraphs, sentences, or word placeholder text sets instantly.
Word & Char Counter
Analyze your text length, count words, and calculate character metrics live.
Text Case Converter
Instantly convert string case formats to upper, lower, title, sentence, or slug metrics live.
Text-to-Speech Converter
Convert written text strings into natural spoken device vocal narrations live instantly.
Image to PDF Converter
Convert standard graphic file imagery assets into downloadable PDF documents locally.
Image Compressor
Optimize image weights and file sizes directly in browser without losses live.
PDF Compressor
Compress and reduce a PDF's file size in browser, then download the optimized document.
PDF Editor
Edit PDFs in browser: add text, images, drawings, shapes and signatures, manage pages, and fill forms.
Color Picker & Converter
Select palette colors instantly and calculate HEX, RGB, and HSL values live.
JSON Formatter & Validator
Validate raw payload arrays instantly and parse beautiful indented object block metrics live.
Base64 Encode/Decode
Convert plain text strings into obfuscated Base64 data arrays or reverse them back securely.
Visual Countdown Timer
Set a custom timeframe window target for interval event pacing tasks live.
High Precision Stopwatch
Measure precise elapsed chronological splits with lap markers locally.
Meta Tag Generator
Generate SEO-ready title, description, robots, and canonical meta tags with a live Google preview.
Robots.txt Generator
Build a valid robots.txt file with custom user-agent rules, allow/disallow paths, and sitemap links.
XML Sitemap Generator
Create a search-engine-ready XML sitemap with custom last-modified dates, frequency, and priority.
Open Graph Tag Generator
Generate Open Graph meta tags with a live Facebook/LinkedIn-style link preview card.
Twitter Card Generator
Generate Twitter Card meta tags with a live preview for summary and large-image cards.
📚 Free Coding Courses
Python Course
Five chapters covering syntax, variables, control flow, functions, and a final project.
Java Course
Learn Java fundamentals, OOP basics, loops, methods, and collections.
HTML Course
Structure web pages with elements, links, images, forms, and semantic layout.
CSS Course
Style pages with colors, the box model, Flexbox, Grid, and responsive design.
C Course
Build a strong foundation with variables, conditionals, loops, and functions.
C++ Course
Go from C to object-oriented C++ with classes, references, and the STL.
🧠 Programming Quiz
Test your coding knowledge, sharpen your skills, and track your progress across multiple languages.
HTML Quiz
Challenge your understanding of semantic markup tags, forms, accessibility, and document structure.
Start QuizCSS Quiz
Test your grasp of selectors, the box model, Flexbox, Grid, and responsive styling.
Start QuizJavaScript Quiz
Check your knowledge of variables, functions, arrays, DOM methods, and async basics.
Start QuizPython Quiz
Check your skills on syntax, list comprehensions, data structures, and algorithms in Python.
Start QuizJava Quiz
Test your knowledge of OOP principles, classes, exception handling, and core Java APIs.
Start Quiz💼 Interview Questions
Prepare for your next technical interview with curated questions and expert answers.
Frontend Interview
Master HTML, CSS, JavaScript, and modern framework concepts asked by top companies.
View QuestionsBackend & Java
Explore core Java, OOPs, system design principles, and database management challenges.
View QuestionsPython & Algorithms
Practice coding logic, data structure puzzles, and algorithmic questions for Python devs.
View QuestionsC++ & Systems
Deep-dive into memory management, low-level pointers, and core C++ interview rounds.
View Questions