Design Patterns courses can help you learn object-oriented design principles, common design patterns like Singleton and Observer, and best practices for software architecture. You can build skills in code refactoring, improving maintainability, and enhancing collaboration among developers. Many courses introduce tools such as UML for visualizing design structures and integrated development environments (IDEs) that facilitate pattern implementation, allowing you to apply these concepts in real coding projects.

University of Washington
Skills you'll gain: GitHub, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Version Control, Git (Version Control System), HTML and CSS, Web Design and Development, Web Development, Web Development Tools, Web Design, Front-End Web Development, Web Content Accessibility Guidelines, Debugging, Semantic Web, Web Analytics and SEO
★ 4.5 (16) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Brainstorming, Root Cause Analysis, Collaborative Software, Ideation, Business Analysis, Problem Management, Design Thinking, Business Process Management
★ 4.5 (31) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Investigation, Fraud detection, Specialized Accounting, Auditing, Litigation Support, Financial Auditing, Financial Accounting, Digital Forensics, Accounting, Legal Support, Report Writing, Employee Training, Internal Controls, Risk Analysis, Compliance Training, Case Studies, Business
★ 4.8 (24) · Mixed · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Test Tools, Acceptance Testing, Software Testing, Test Automation, Test Execution Engine, Test Planning, Software Quality Assurance, Generative AI, Test Data, Test Case, AI literacy, Requirements Analysis, Software Documentation
★ 4.3 (37) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Restful API, Web Services, Java Platform Enterprise Edition (J2EE), Software Design, Java, Application Programming Interface (API), API Design, Software Design Patterns, Software Architecture, Command-Line Interface
★ 4.3 (16) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Logo Design, Video Production, Graphic and Visual Design Software, Graphics Software, Graphic and Visual Design, Graphic Design, Video Editing, Content Creation, Social Media Marketing, Marketing Communications
★ 4.5 (39) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: New Product Development, Product Development, Product Design, Design Thinking, Persona Development, Innovation, Conceptual Design, Prototyping, Market Research, Design and Product, Ideation, Agile Product Development, Target Market, Target Audience, Customer Analysis, Product Requirements, Wireframing, Market Opportunities, Market Analysis, Customer Insights
★ 4.8 (12) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Cloud Development, Microsoft Azure, Software Development, Cloud Deployment, Cloud Applications, Cloud Management, Application Deployment, Design Strategies
★ 4.7 (76) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Brand Marketing, Branding, Brand Strategy, Brand Awareness, Creative Design, Visual Storytelling, Target Audience, Brand Management, User Feedback, Customer Insights, Storytelling, Growth Strategies, Marketing, Driving engagement, Market Research, Target Market, Promotional Strategies, Social Media, Customer Analysis, Digital Marketing
★ 4.6 (18) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Business Planning, Solution Design, Consumer Behaviour, Sustainable Development, Enterprise Modeling, Entrepreneurship, Sustainable Business, Market Dynamics, Market Opportunities, Needs Assessment, Design Thinking, Ideation, Product Development, Environmental Issue, Sustainability Reporting, Business Development, Cultural Sensitivity, Empathy & Emotional Intelligence
★ 4.4 (25) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Javascript, Event-Driven Programming, Web Design and Development, Interactive Design, Web Applications, Interaction Design, Scripting, Web Development, Data Validation
★ 3.9 (28) · Beginner · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Java, Code Reusability, Maintainability, Programming Principles, Computer Programming, Application Development, Android Development, Memory Management
★ 4.4 (35) · Beginner · Course · 1 - 4 Weeks