Launch a web app in the default browser.

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LTS Haskell 15.15:
Stackage Nightly 2020-06-05:
Latest on Hackage:

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MIT licensed by Michael Snoyman
Maintained by [email protected]

Module documentation for

This version can be pinned in stack with:[email protected]:cc3b0f08add42bdf91a7a2597bd7b07a30e03361a813dc466f65027e78e1b4ca,1334


This handles cross-platform launching and inserts Javascript code to ping the server. When the server no longer receives pings, it shuts down.


Allow blaze-builder 0.4

  • Support for Win64