About Big O Calc

Big O Calc is a free, web-based tool that helps developers and students understand the time and space complexity of their code using Big O notation. Simply paste your code, and the tool will analyze its complexity.

Beyond the calculator, we provide a comprehensive guide, real-world algorithm examples, a 16-lesson tutorial, and a FAQ to help you master algorithm analysis.

Big O Calc is built and maintained by Dale Seo, a software engineer passionate about making computer science concepts accessible to everyone.

This project is driven by the belief that understanding algorithm complexity should not be intimidating. Whether you are preparing for a coding interview or optimizing production code, Big O Calc aims to be your go-to resource.

We aim to provide the clearest and most practical resources for learning Big O notation and algorithm analysis. Our content is designed to be:

• Accessible: Free and available to everyone, no sign-up required
• Practical: Real code examples and hands-on analysis tools
• Educational: Step-by-step explanations that build understanding

Big O Calc is a free resource. If you find it useful, you can support the project by buying me a coffee. Your support helps keep the site running and motivates continued development of new features and content.