API testing courses can help you learn how to validate API functionality, performance, security, and reliability. You can build skills in writing test cases, automating tests, and analyzing API responses to ensure they meet specifications. Many courses introduce tools like Postman, SoapUI, and JMeter, that support executing tests and monitoring API behavior. You'll also explore methods for integrating testing into the development process, enhancing collaboration between teams, and ensuring seamless application performance.

California Institute of the Arts
Skills you'll gain: Information Architecture, Persona (User Experience), UI/UX Strategy, Web Design, User Experience, Wireframing, User Research, User Centered Design, Mockups, Usability Testing, Requirements Analysis, Target Audience, Agile Methodology
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Angular, JavaScript Frameworks, Unit Testing, Ajax, Cloud Applications, Web Applications, Web Components, Front-End Web Development, Web Development, Javascript, Model View Controller, Software Architecture, Hypertext Markup Language (HTML), UI Components, Software Design Patterns
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Bootstrap (Front-End Framework), Debugging, UI Components, Front-End Web Development, Semantic Web, Hypertext Markup Language (HTML), Browser Compatibility, Web Content Accessibility Guidelines, Web Analytics and SEO, User Interface (UI), Development Testing, Data Validation, Javascript, Animations
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Data Presentation, Dashboard, Data Analysis Expressions (DAX), Power BI, Data Visualization, Key Performance Indicators (KPIs), Data Transformation, Data Literacy, Presentations, Data Synthesis, Usability Testing, Microsoft PowerPoint, Star Schema, Data Integration, Microsoft Excel, Business Intelligence, Data Manipulation, Data Visualization Software, Data Cleansing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Email Automation, Email Marketing, Marketing Automation, Performance Analysis, Performance Measurement, Quality Assurance, Campaign Management, Performance Metric, Benchmarking, Marketing Effectiveness, HubSpot CRM, Automation, Key Performance Indicators (KPIs), Marketing Analytics, Data-Driven Decision-Making, Personalized Service, Customer Engagement
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Prompt Patterns, AI Orchestration, Salesforce Development, Salesforce, Agentic Workflows, Generative AI Agents, Workflow Management, Agentic systems, Application Lifecycle Management, Generative AI, Performance Testing, Enterprise Architecture, Business Logic, Data Integration, Data Architecture, Model Evaluation, Automation, Data Security
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Storyboarding, User Experience Design, Design Reviews, Figma (Design Software), UI/UX Research, Graphic and Visual Design, Wireframing, User Story, Usability Testing, Information Architecture, Mockups, Adobe XD, Ideation, Responsive Web Design, Layout Design, User Experience, Design Elements And Principles, User Research, User Interface and User Experience (UI/UX) Design, User Centered Design
Beginner · Professional Certificate · 3 - 6 Months

Scrimba
Skills you'll gain: Model Context Protocol, Prompt Engineering, Retrieval-Augmented Generation, LangChain, OpenAI API, Embeddings, Image Analysis, Responsible AI, AI Workflows, LLM Application, Cloud Deployment, Cloud Applications, Multimodal Prompts, Hugging Face, Generative AI, Application Deployment, OpenAI, API Gateway, Vector Databases, Software Engineering
Intermediate · Specialization · 3 - 6 Months

Pragmatic AI Labs
Skills you'll gain: Prompt Engineering, Hugging Face, Generative AI, JSON
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Infrastructure as Code (IaC), Terraform, Amazon Web Services, Cloud Infrastructure, Application Development, Cloud Development, Cloud Applications, CI/CD, AWS CloudFormation, Cloud Computing Architecture, Amazon Elastic Compute Cloud, Business Intelligence, Amazon S3, Web Development, API Gateway, Cloud Platforms, Serverless Computing, Cloud Services, Artificial Intelligence and Machine Learning (AI/ML), Amazon DynamoDB
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apple iOS, Open Web Application Security Project (OWASP), Swift Programming, Mobile Security, Mobile Development, Secure Coding, IT Security Architecture, Application Security, Data Validation, Vulnerability Assessments, Cryptography, Application Programming Interface (API), JSON
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Secure Coding, Data Validation, Business Logic, .NET Framework, Relational Databases, Databases, Database Design, C# (Programming Language), Order Management Systems, System Testing, User Interface (UI), Event-Driven Programming, Systems Development, Debugging, Data Access, Microsoft SQL Servers, Application Development, Microsoft Visual Studio, SQL, User Interface (UI) Design
Beginner · Course · 1 - 4 Weeks