TAO Platform - 2026 Pricing, Features, Reviews & Alternatives

TAO is a leading open-source digital assessment platform that enables education, certification, and public sector organizations to create, deliver, and manage high-stakes assessments securely at scale. Designed to support the entire assessment lifecycle, TAO provides powerful end-to-end tools for authoring, secure test delivery, scoring, grading, and reporting within a flexible, standards-based platform.

With TAO Authoring, organizations can build rich, standards-aligned assessments using a comprehensive library of question types that support STEM, literacy, language learning, professional certification, and more. TAO supports the full spectrum of assessment programs, including formative, diagnostic, benchmark, summative, adaptive, and high-stakes testing.

Built on QTI® and LTI® open standards, TAO integrates with existing technology ecosystems while giving organizations complete ownership and control of their assessment content, data, and workflows. Its interoperable, modular architecture eliminates proprietary vendor lock-in and enables institutions to tailor assessment programs to their specific requirements.

TAO helps ensure secure and equitable testing through lockdown capabilities, secure browser integrations, session controls, accessibility tools, WCAG 2.1 AA compliance, and multilingual support. Backed by highly secure cloud infrastructure capable of supporting hundreds of thousands of concurrent users, TAO provides the reliability and scalability required for large-scale assessment programs.

From classroom assessments and certification exams to admissions testing and national assessment initiatives, TAO gives organizations the flexibility, control, and confidence to assess any learner, for any purpose, at any scale.