11 Open-Source WYSIWYG Editors Worth Using in 2026

If you’re building a CMS, a documentation portal, or any web app where users type formatted content, picking the right WYSIWYG editor is one of those decisions that saves you weeks of pain later or causes weeks of pain immediately.
You want something your users can figure out without a tutorial, something you can drop into a React component or a plain HTML page without fighting 40 npm dependencies, and ideally something that won’t lock you into a SaaS subscription the moment you need a feature past the free tier. That rules out a lot of options fast, and it leaves you with a shortlist of open-source editors that are genuinely worth your time in 2026.