OER Commons vs OpenStax

OER Commons is a free web-based digital library for finding open educational resources and collaborating on their use, evaluation and improvement. It serves K–12 and higher education educators, librarians and homeschooling parents. A free account, priced at free, provides library access, Open Author for creating or publishing resources, groups, collaboration to curate or remix content, and a personal profile for saved resources. Organizations can use Hubs to develop collections, manage content and facilitate conversations. Custom microsites can have their own libraries and domains, tailored metadata and content creation, and analytics dashboards. Open Author includes an accessibility checker, requires alt text for embedded images and automatically captions videos uploaded to a resource. ISKME offers data and API integration services for learning management systems; its tools can receive and provide harvestable content feeds in Dublin Core, IEEE Learning Object Metadata and RSS. ISKME reports completed accessibility audits and another review underway, but authors and users remain responsible for resource accessibility, and many indexed materials are hosted externally. Resources created in legacy Open Author 1 are scheduled for removal on December 31, 2026; Open Author 2 resources are unaffected.

OpenStax is a nonprofit education initiative of Rice University that publishes free, openly licensed textbooks and related materials for introductory courses. Subject matter experts write the textbooks, which are peer-reviewed for accuracy and updated regularly. Books can be read online on the web, Android or iOS, or downloaded as free PDFs; low-cost print editions are also offered. Most titles are accessible without an account, although a small number require sign-in. Students can highlight, take notes and create study guides, with a free student account required for some features. Educators with a free account can access test banks, PowerPoint slides, solutions manuals and customization tools. OpenStax Assignable lets instructors assign readings, assessments and supporting materials through an LMS, with automatic grading and gradebook synchronization. It supports LTI 1.3 and Blackboard, Canvas, D2L Brightspace and Moodle. Textbooks cost nothing. Assignable starts at $15, paid once, billed per student per semester; instructors use it free, and a two-week trial begins on the first day of access. Institutional pricing is by contact.