Cloud Range FlexLabs is an on-demand, browser-based cybersecurity skills training platform that provides tutorial-based lab exercises in a hosted, emulated environment. It is designed for individual skill development across all experience levels, from novice to advanced practitioners. The platform includes a library of over 1,500 labs covering topic areas such as system hardening, vulnerability analysis, incident response, digital forensics, malware analysis, cryptography, Linux, and penetration testing. Labs are organized into SkillPaks — bundles grouped by topic, work role, or certification-prep focus — and can be customized into individual learning plans. Virtual machines are automatically provisioned for each exercise and are accessible on-demand at any time without requiring local hardware, software, or licenses. FlexLabs includes skills assessments that collect real-time data as tasks are completed, producing scored reports with strengths, weaknesses, and development recommendations. Reporting and progress tracking are available through Cloud Range's Performance Portal (LMS) or via LTI integration with a customer's own LMS. All lab content is mapped to the NIST/NICE cybersecurity workforce framework. Upon completion, learners receive certificates with Continuing Professional Education (CPE) credits, which can be submitted to organizations such as CompTIA to maintain certifications. FlexLabs are designed to complement Cloud Range's FlexRange live-fire team simulation exercises, supporting prerequisites, post-mission improvement, and bridging individual skill gaps identified during team exercises.