As medium.js becomes more mainstream, a lot of people fell in love with its unique editor. I am going to list several open source projects on Github and try to compare them against each other.
We have one virtual machine (Docker container to be precise) ready for you for each repo.
For each repo, click the ‘start server at this step’ button, then wait for five seconds until the ‘edit your code’, ‘observe your change’ and ‘terminal to the machine’ links become green. Then, you can click to ‘edit your code’, ‘observe your change’ or start a ‘terminal to the machine’. Refresh the newly launched page if necessary, sometimes the virtual machine takes a little bit longer to start.
daviferreira/medium-editor is my personal favorite since it is very actively maintained and is very similar to the actual medium editor.