RexPad is described as 'Nimble note-taking for all your ideas, plans, and lists. Write on your own, or collaborate with family, friends, and co-workers. Clean and speedy Avoid distractions and be efficient with a lean interface and instant search. Multiple panes' and is a Note-taking App in the Office & Productivity category. There are more than 50 alternatives to RexPad, not only websites but also apps for a variety of platforms, including Mac, Windows, iPhone and iPad. The best alternative is Notion, which is free. Other great sites and apps similar to RexPad are Google Keep (Free), Microsoft OneNote (Freemium), Trello (Freemium) and Evernote (Freemium).
With so many tools, it's hard to keep everyone on the same page. Notion is a new tool that unifies them all. It's like Google Docs, but everything is organized and discoverable by your team. Real collaboration in real-time.
Workflowy lets you organise your brain into easily manageable lists. It also works as a single-pane outliner with inline notes. It offers one-click hoisting (zooming into branches). The online version syncs with mobile apps.
Dendron is an open-source, local-first, markdown-based, note-taking tool built on top of VSCode. It supports all the usual features you would expect like tagging, backlinks, a graph view, split panes, and so forth.
Bear is a beautiful and flexible writing app for note-taking and prose, both on the go for iOS devices and for the Mac OS desktop. KEY FEATURES - Stay organized by linking notes to each other. - Use hashtags to organize and add context to notes.