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MDN Playground vs myCompiler

MDN Playground

developer.mozilla.org

myCompiler

mycompiler.io

Side by side

FigureMDN PlaygroundmyCompiler
Price fromFreeFree
Free planYesYes
Free trial——
Open source——
WebYesYes
Plans published11
Spec score · Code Playground Software7.5 (#38)8.2 (#11)
Spec score · Coding Playgrounds7.3 (#116)8.0 (#67)
Execution isolationThe runner uses an iframe on a random UUID subdomain of mdnplay.dev to isolate instances.The Python page says each execution runs in an isolated container that is destroyed after completion.
Free planYesYes
Sharing controlslink_accesslink_access
SharingUsers can copy Markdown for a playground or, when logged in, create a permalink that lets others preview and interact with it.Saved programs receive unique URLs that others can view, fork and run.

Plans

MDN Playground

  • MDN PlaygroundFree

MDN Playground pricing →

myCompiler

  • FreeFree

myCompiler pricing →

In their own words

MDN Playground

MDN Playground has no write-up on Specifiction yet; its figures are above.

Visit developer.mozilla.org

myCompiler

myCompiler has no write-up on Specifiction yet; its figures are above.

Visit mycompiler.io