Pickcode is basically Replit-lite, for kids. The editor is simple: text editor + output console + big green button to run your code. We support Python, HTML/CSS/JS, Java, and our block/text hybrid language, Pickcode VL. We're partners on code.org's Hour of Code, and hundreds of thousands of students have tried our free stuff through them.
An account for individual kids is totally free, and we offer some free Python and Pickcode VL lessons to get them started. We make money by selling licenses to schools for better customer support and roster/lesson management features.
You can use this demo account I made to try out the editor:
email: demo@student.pickcode.io
pw: Demo1234
(Don't clobber other people's work, and what you put in the demo account is public so be nice)