If you need to host your own screenshot/html2png app, I've built this on top of PhantomJS: https://github.com/w3p/htmlshots. It uses PhantomJS's builtin webserver module to serve screenshots, so you don't need to spawn a new process for each screenshot request.
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If you need to host your own screenshot/html2png app, I've built this on top of PhantomJS: https://github.com/w3p/htmlshots. It uses PhantomJS's builtin webserver module to serve screenshots, so you don't need to spawn a new process for each screenshot request.