100% Free - No Signup Required

Free Online Tools & Games

49+ productivity tools and 45+ games. Everything runs in your browser - private & secure.

Why YaliKit?

100% Free Forever

No hidden fees, no premium tiers, no subscription required. Every single tool and game on YaliKit is completely free to use. We believe essential digital utilities should be accessible to everyone, whether you are a student, professional, or casual user.

Private & Secure

Your privacy matters. Most of our tools process files directly in your browser using client-side technology. Your documents, images, and data never leave your device. We do not store, view, or share your files under any circumstances.

Fast & Easy to Use

No account creation, no email verification, no downloads required. Simply select a tool, upload your file or enter your data, and get instant results. Our intuitive interfaces are designed for users of all technical skill levels.

Your Complete Online Toolkit

YaliKit is a comprehensive collection of free online tools and browser-based games designed to help you accomplish everyday tasks without the hassle of expensive software subscriptions or complicated installations. Whether you need to merge PDF documents, compress images for your website, format JSON data for development work, or simply take a break with a classic puzzle game, YaliKit provides everything you need in one convenient location.

PDF Tools for Document Management

Our PDF tools help you manage documents efficiently. Use our PDF merger to combine multiple PDF files into a single document, perfect for consolidating reports, contracts, or presentations. The PDF splitter lets you extract specific pages or divide large documents into smaller, more manageable files. All PDF processing happens directly in your browser, ensuring your sensitive documents remain completely private.

Need to convert documents? Our Word to PDF and Excel to PDF converters maintain formatting integrity while creating professional PDF outputs. These tools are ideal for students preparing assignments, professionals sharing reports, or anyone who needs reliable document conversion without expensive software like Adobe Acrobat.

Image Tools for Visual Content

Optimize your images for web, social media, or print with our comprehensive image toolkit. The bulk image compressor reduces file sizes by up to 80% while maintaining visual quality, helping your website load faster and improving SEO performance. Our image converter supports all major formats including JPG, PNG, WebP, GIF, and HEIC.

Beyond basic conversion, you can crop images to exact dimensions, resize photos for specific platforms like Instagram or LinkedIn profile pictures, and adjust brightness, contrast, and other visual properties. All image processing uses advanced algorithms optimized for quality and speed.

Developer Tools for Coding Efficiency

Software developers and web professionals rely on our developer tools for daily coding tasks. The JSON formatter and validator helps you debug API responses, format configuration files, and ensure data structure integrity. Our JSON compare tool identifies differences between two JSON objects, essential for API testing and data migration projects.

Security-focused tools include Base64 encoding and decoding for safe data transmission, URL encoding for proper web URL formatting, and hash generators supporting MD5, SHA-1, SHA-256, and other algorithms for checksum verification and password hashing. The regex tester allows you to build and test regular expressions with real-time highlighting and match information.

For web development workflows, our JWT decoder parses JSON Web Tokens for authentication debugging, while the cron generator creates scheduled task expressions with a visual interface. The diff checker compares text files side by side, perfect for code reviews and tracking document changes.

Calculators and Converters for Everyday Math

Our calculator suite handles everything from basic percentage calculations to complex unit conversions. The unit converter supports length, weight, temperature, volume, and dozens of other measurement types with automatic precision. Calculate your age in years, months, and days with the age calculator, or check your health metrics with the BMI calculator.

Financial calculators help with loan payments, compound interest, tip calculations, and percentage discounts. Students benefit from GPA calculators, grade percentage tools, and scientific calculators with advanced functions. All calculations are performed instantly with no page reloads required.

Brain Games and Skill Tests

Take a productive break with our collection of classic games and cognitive tests. Challenge yourself with puzzle games like 2048, Sudoku, and Minesweeper that sharpen logical thinking and problem-solving skills. Test your reflexes with the CPS (clicks per second) test and reaction time challenges, popular among gamers looking to improve their performance.

Word game enthusiasts enjoy our Wordle clone, Hangman, and Word Search puzzles that build vocabulary and spelling skills. Classic arcade games including Snake, Tetris, Pacman, and Space Invaders offer nostalgic entertainment. Board game fans can play Chess, Checkers, and Connect Four against intelligent AI opponents.

How YaliKit Protects Your Privacy

Unlike many online tools that upload your files to remote servers, YaliKit processes most operations directly in your web browser using JavaScript and WebAssembly technology. This client-side processing approach means your PDF documents, images, and personal data never leave your computer.

For tools that require server-side processing (like some advanced image compression), files are transferred over encrypted HTTPS connections and immediately deleted after processing. We maintain no logs of file contents and have no ability to access your data. Our privacy-first architecture has been designed by developers with over 10 years of experience in secure web application development.

We are transparent about our business model: YaliKit is supported by non-intrusive advertising through Google AdSense. This allows us to keep all tools completely free while maintaining our commitment to user privacy and security.

Built for Everyone

YaliKit serves users across all backgrounds and skill levels. Students use our tools to format assignments, calculate grades, and convert documents for class submissions. Small business owners rely on PDF tools for contracts, image optimization for marketing materials, and calculators for financial planning. Developers integrate our utilities into their daily workflows for data formatting, encoding, and testing.

Our responsive design ensures all tools work perfectly on desktop computers, tablets, and mobile phones. Whether you are at your office desk or working from a coffee shop on your phone, YaliKit adapts to your device and provides the same reliable functionality.

We continuously add new tools and games based on user feedback and emerging needs. Have a suggestion for a tool you would like to see? Visit our contact page to share your ideas with our development team.

49+
Free Tools
45+
Free Games
0
Signups Required
24/7
Available

Frequently Asked Questions

Find answers to common questions about YaliKit tools, games, privacy, and how to get the most out of our free online services.

Are YaliKit tools really free to use?

Yes, all YaliKit tools and games are completely free to use with no hidden charges. There are no premium tiers, no subscription fees, and no usage limits. We support our platform through non-intrusive advertising, which allows us to provide unlimited free access to all users. You can merge as many PDFs, compress as many images, and play as many games as you want without ever paying a cent.

Is my data safe when using YaliKit?

Absolutely. Your privacy and security are our top priorities. Most of our tools process files directly in your web browser using client-side JavaScript technology. This means your documents, images, and data never leave your device and are never uploaded to our servers. For the few tools that require server processing, all transfers use encrypted HTTPS connections and files are immediately deleted after processing. We never store, view, or share your content under any circumstances.

Do I need to create an account or sign up?

No account is required. You can start using any tool or game immediately without signing up, logging in, or providing any personal information. We designed YaliKit to be as frictionless as possible - just visit the tool you need and start working right away. Your game progress and high scores are saved locally in your browser, so you can pick up where you left off without needing an account.

What PDF tools does YaliKit offer?

YaliKit provides a comprehensive suite of PDF tools including: PDF Merge to combine multiple PDF files into one document, PDF Split to extract specific pages or divide large documents, Word to PDF conversion for Microsoft Word documents, and Excel to PDF conversion for spreadsheets. All PDF tools maintain original formatting and quality, and process files directly in your browser for maximum privacy and security.

How do I compress images without losing quality?

Our bulk image compressor uses advanced compression algorithms that reduce file sizes by up to 80% while maintaining visual quality that is virtually indistinguishable from the original. Simply upload your images (JPG, PNG, WebP supported), select your desired quality level, and download the optimized versions. This is perfect for website optimization, email attachments, and social media uploads where smaller files load faster and save bandwidth.

What developer tools are available?

YaliKit offers a robust collection of developer utilities including: JSON Formatter for beautifying and validating JSON data, JSON Compare for finding differences between two JSON objects, Base64 Encoder/Decoder for encoding and decoding data, URL Encoder for safe URL formatting, Hash Generator supporting MD5, SHA-1, and SHA-256 algorithms, Regex Tester for building and testing regular expressions, JWT Decoder for parsing JSON Web Tokens, Cron Generator for creating scheduled task expressions, and Diff Checker for comparing text files side by side.

What games can I play on YaliKit?

YaliKit features over 50 free browser games across multiple categories. Puzzle games include 2048, Sudoku, Minesweeper, and Crossword. Classic arcade games feature Snake, Tetris, Pacman, Space Invaders, Breakout, and Flappy Bird. Board games offer Chess, Checkers, Tic Tac Toe, and Connect Four with AI opponents. Word games include Wordle, Hangman, and Word Search. Card games feature Solitaire, Spider Solitaire, FreeCell, and Blackjack. Memory and skill tests include CPS Test, Reaction Time, Typing Speed Test, and various memory challenges.

Does YaliKit work on mobile devices?

Yes, YaliKit is fully responsive and works on all devices including desktop computers, laptops, tablets, and smartphones. Our tools and games automatically adapt to your screen size for optimal usability. Touch controls are supported for all games, and file uploads work seamlessly on mobile browsers. You can use YaliKit anywhere you have an internet connection and a modern web browser.

How can I contact YaliKit support?

You can reach our team through the Contact page on our website. We welcome bug reports, feature suggestions, and general feedback. Our development team typically responds within 24-48 hours. You can also email us directly at [email protected]. We are always looking for ways to improve YaliKit and value input from our users.

Are there any file size limits?

Since most processing happens in your browser, file size limits depend on your device capabilities rather than server restrictions. Modern browsers can typically handle files up to several hundred megabytes. For very large files, we recommend using a desktop computer with adequate RAM. If you experience any issues with large files, try processing them in smaller batches for optimal performance.

Need a tool? Ask us!