M4uhd Video Downloader Online [2021] Free May 2026

License

Apex 4X including all template design patterns is distributed under the terms of the Open Source Initiative OSI - MIT License, and may be freely used for any purpose within any web technology.

Resources

Apex 4X on GitHub
Visual ARIA Bookmarklet
Visual ARIA Chrome Extension
Visual ARIA Firefox Extension
Visual ARIA on GitHub
ARIA Role Conformance Matrices
Accessibility Tree Training Guide

Acknowledgements

Author and developer: Bryan Garaventa
Website designer: Angela Ricci
Style and markup editor: Laurence Lewis