Online Tools
As part of our barrier-busting mission, CAST offers a number of robust (and often free) learning tools. These tools—many designed and tested as part of CAST’s research projects—help educators, developers, families, and other individuals experience the power of flexible learning environments.

Clusive®️: An Accessible, Digital Reading Platform
Try our free, adaptive, and accessible web-based reader for students in grades 5–12.

Corgi: Co-organize Your Learning
Corgi takes what’s already great about graphic organizers and makes them even more flexible and accessible.

Biofab Explorer
Invent your future. Explore this free career guidance resource created to attract and inspire students to the emerging field of biofabrication.

TIES Lessons for All: The 5-15-45 Tool
Five minutes is all you need to get started creating more inclusive lessons for all students through collaboration with colleagues.

CAST Figuration®️
A feature-rich, responsive, mobile-first, accessible, front-end framework for web developers. Get started fast with reusable components, interactive widgets, and customization options with plenty of examples and documentation.

Learning Designed™
Your education power tool for a changing world. Join the community, earn your UDL credentials and certifications, and meet other like-minded educators focused on Universal Design for Learning.

UDL Guidelines™
A tool used in the implementation of Universal Design for Learning that can be applied to any discipline or domain to ensure that all learners can access and participate in meaningful, challenging learning opportunities.

AEM Pilot
Designed for teams that represent the range of AEM-related services and supports in schools and communities, including administration, instruction, technology, data management, and students and families.

UDL Studio™
Make universally designed educational materials with levels of learning supports, assessments, and interactive elements.

UDL Exchange™
Create, remix, and share instructional resources based on UDL and aligned to the Common Core State Standards.

UDL Book Builder™
Develop your own digital books to support reading instruction and literacy learning.

iSolveIt™ Math Puzzles
Innovative, research-based iPad games that teach essential math reasoning and problem-solving skills. Grades 6 and up.

UDL Editions™
Publicized by Google around the world, UDL Editions is a model for presenting classic texts from world literature in a flexible online interface with just-in-time, individualized supports for struggling and expert readers alike.
CAST's Online Tool Museum
Explore a selection of CAST's online tools from the past. These well-loved products influence our current work, but are no longer maintained as stand-alone applications.

UDL Curriculum Toolkit
Learn about the UDL Curriculum Toolkit, an open-source web application designed to support the creation of interactive, multimedia curricula.