HTML-CSS Certification
Validate semantic HTML5, modern CSS3, responsive design, Flexbox, CSS Grid, accessibility fundamentals, and cross-browser layout skills for web designer and entry-level front-end roles.
Build a clearer path into front-end development with certificate programs that validate practical HTML, CSS, JavaScript, and React skills. COITB credentials are designed for aspiring developers, career changers, bootcamp graduates, and self-taught learners who want employer-verifiable proof of capability. Choose online proctored or authorized test-center exams, use the free practice assessment, and earn a digital badge when you pass.

Explore COITB credentials that validate practical front-end, web design, JavaScript, React, and employer-verifiable skill readiness.
Validate semantic HTML5, modern CSS3, responsive design, Flexbox, CSS Grid, accessibility fundamentals, and cross-browser layout skills for web designer and entry-level front-end roles.
Prove modern JavaScript capability, including ES6+, DOM manipulation, async/await, Fetch API, functional patterns, JSON handling, event logic, and REST API integration.
Demonstrate practical React skills, including JSX, component architecture, hooks, props, state, routing, forms, conditional rendering, lists, and API-powered interfaces.
Compare HTML-CSS and ReactJS credentials to decide which front-end certificate to pursue first, then stack both for broader web and application credibility.
Take COITB exams through online remote proctoring or authorized in-person test centers, with ID verification, proctor monitoring, and structured exam-day logistics.
Receive a verifiable digital badge after passing, then share it on LinkedIn, résumés, employer portals, and credential verification workflows.

Review the HTML-CSS, JavaScript, and ReactJS credentials to match your current skill level with your target role. COITB pathways help candidates choose between web design, front-end development, full-stack preparation, or a stacked credential plan.
COITB helps candidates demonstrate practical technical capability with recognized, flexible credentialing options.
COITB validates real-world front-end skills through structured, employer-verifiable credentialing programs.
Certification programs are aligned to ISO/IEC 17024 standards for credible personnel credentialing.
Remote online testing supports flexible scheduling from most U.S. and international candidate locations.
Digital badges strengthen résumés, LinkedIn profiles, job applications, and employer verification workflows.
Credentialing support for today’s software career pathways.
COITB is a non-profit credentialing body focused on industry-recognized certifications for the digital age. From its headquarters in Oklahoma City, COITB supports candidates pursuing real-world skill validation in front-end development, application development, AI, backend development, and technical sales. Its mission is to validate practical capability, elevate professional standards, and help build a future-ready IT workforce. COITB does not operate as a bootcamp or training provider; instead, it gives self-taught learners, bootcamp graduates, career changers, developers, and business teams a way to prove skills through structured exams, flexible testing options, and verifiable digital badges.
The best certification depends on your target role. For front-end developers, a strong COITB pathway is HTML-CSS Web Designer for layout and accessibility, JavaScript Professional Developer for language fundamentals, and ReactJS Framework Developer for component-based applications. If you already know HTML, CSS, and JavaScript, ReactJS may be the most direct credential for front-end engineering roles.
Get clear answers about credentials, registration, and exam logistics.
Aligned to recognized personnel certification standards.
Verifiable badge for LinkedIn and résumés.
Flexible credentialing from most candidate locations.
Send your question to COITB support for registration help, exam logistics, credential pathways, or current pricing details.
You can also send us a quick email at support@coitb.org.
You can also send us a quick email at support@coitb.org.