Description: MathJax is an open source JavaScript display engine for mathematics that works in all browsers. It allows you to include math equations and formulas on your website that will render beautifully cross-browser.
Type: software
Pricing: Open Source
Description: RemNote is a free, open-source spaced repetition and note-taking app. It uses an interconnected web of notes to promote understanding and long-term memory retention. Key features include note linking, spaced repetition flashcards, knowledge graphs to visualize connections, and excellent mobile apps.
Type: software
Pricing: Open Source