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Given that it's very useful to generate minimal reproducible examples when asking for help, it seems like a online LaTeX sandbox would be beneficial.

For those unaware, jsfiddle and similar sites allow users to mock-up minimal reproducible examples of javascript code that is useful for debugging on sites like StackOverflow.

marked as duplicate by Werner, user13907, Paul Gessler, Alan Munn, Mico Apr 2 '15 at 22:44

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