Do more in seconds —
no signup, no software, no cost.
55+ tools and 45+ games that run entirely in your browser. Your files never leave your device.
100% Private
Files stay on your device
Instant Results
No upload wait times
Always Free
No hidden tiers, ever
Free Online Tools
55+ tools for everyday tasks
PDF Tools
15 tools
Image Tools
5 tools
Text Tools
10 tools
JSON Tools
5 tools
Developer Tools
9 tools
Creative Tools
4 tools
Calculators
7 tools
Need a break? Play a game.
45+ browser games — no downloads, play instantly
Skill Tests
9 games
Puzzle Games
6 games
Arcade Games
14 games
Board Games
6 games
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, Block Stacker, Maze Chase, and Alien Defense 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.
React Libraries
Open source components built by us
Frequently Asked Questions
Are YaliKit tools really free?
Yes, completely free with no hidden charges, premium tiers, or subscription fees. We support the platform through non-intrusive advertising so every tool and game remains free forever.
Is my data safe?
Most tools process files directly in your browser — your documents never leave your device. For the few tools that need server processing, files are transferred over encrypted HTTPS and deleted immediately after.
Does it work on mobile?
Yes, fully responsive on desktop, tablet, and mobile. Touch controls are supported for all games, and file uploads work seamlessly on mobile browsers.
Do I need an account?
No. Use any tool or game instantly — no signup, no login, no personal information required. Game progress is saved locally in your browser.