Software testing courses can help you learn test planning, test case design, automated testing, and performance testing. You can build skills in identifying bugs, writing effective test scripts, and using various testing methodologies. Many courses introduce tools like Selenium for automation, JUnit for unit testing, and JIRA for issue tracking, showing how these skills apply in real-world software development environments.

DeepLearning.AI
Skills you'll gain: Vector Databases, Embeddings, Retrieval-Augmented Generation, LLM Application, Large Language Modeling, Algorithms, Semantic Web
★ 4.6 (12) · Intermediate · Project · Less Than 2 Hours

Infosec
Skills you'll gain: Application Security, Secure Coding, Package and Software Management, Node.JS, Vulnerability Management, Javascript, Dependency Analysis, Vulnerability Assessments, Exploitation techniques
★ 4.5 (14) · Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Web Content Accessibility Guidelines, Web Design, Usability, HTML and CSS, Web Design and Development, Hypertext Markup Language (HTML), Typography, Color Theory, Semantic Web
★ 4.7 (12) · Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: MySQL, Bash (Scripting Language), Scripting, Database Management, Relational Databases, Shell Script, Data Maintenance, Database Administration, Command-Line Interface, SQL, Databases, Data Import/Export, Database Application, Data Pipelines, Data Manipulation, Python Programming, Data Processing, Linux
★ 4.2 (13) · Beginner · Guided Project · Less Than 2 Hours

Board Infinity
★ 4.5 (8) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Layout Design, Target Audience, Design, Ethical Standards And Conduct, Professional Networking, Collaborative Software, Driving engagement, Content Management Systems, Portfolio Management
★ 4.1 (16) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Controls, Threat Management, Cybersecurity, Threat Detection, Cyber Threat Intelligence, Zero Trust Network Access, Cyber Attacks, Cyber Security Strategy, Authentications, Application Security, Security Awareness, Cyber Risk, Information Systems Security, Data Security, Encryption, Multi-Factor Authentication, Vulnerability Assessments, Cryptography, Authorization (Computing), Identity and Access Management
★ 4.9 (8) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Merchandising, E-Commerce, Web Applications, Business-To-Consumer, Scalability, Project Implementation, Business Technologies, Technology Solutions, Program Implementation, System Implementation, Product Knowledge, Value Propositions, Digital Transformation, Application Frameworks, Digital Content, Case Studies, Needs Assessment, Application Development, Systems Integration, Growth Strategies
★ 4.3 (16) · Beginner · Specialization · 1 - 3 Months

Splunk Inc.
Skills you'll gain: Data Modeling, Splunk, Pivot Tables And Charts, Data Management, Model Optimization, Query Languages, Performance Tuning, Data Science, Data Analysis, Big Data, Business Intelligence, Business Analytics, Geospatial Information and Technology
★ 4.8 (21) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Restful API, Core Data (Software), Security Controls, HTML and CSS, UI Components, User Interface (UI) Design
★ 4.4 (8) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Peripheral Devices, File Systems, Mac OS, User Accounts, Virtual Private Networks (VPN), File Management, Knowledge of Apple Software, TCP/IP, User Provisioning, Data Security, System Configuration, Apple software proficiency, Network Protocols, Operating System Administration, Network Administration, Network Support, Software Installation, General Networking, Data Management, Package and Software Management
★ 4.7 (19) · Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Correlation Analysis, Statistical Visualization, Descriptive Statistics, Statistical Analysis, Statistical Software, Probability & Statistics, Data Analysis, Analysis, R (Software), Systems Of Measurement, Data Quality, R Programming, Statistical Methods, Verification And Validation, Statistical Hypothesis Testing
★ 4.2 (10) · Intermediate · Course · 1 - 3 Months