Interactive Haskell interpreter in a browser.

Latest on Hackage:

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow to host generated Haddocks.

BSD3 licensed by Shae Erisson


Google Summer of Code 2012 project, GHCi for the web


Chrome 21.x Firefox 14.x

Does not work with Firefox 10

Quick start installation

git clone && cd ghclive && cabal install && ghclive then point your browser to http://localhost:3000

Here’s some source code to paste into the editor buffer:

import Diagrams.Prelude
import Prelude
import Network.Web.GHCLive.Display

hilbert = iterate expand mempty where
  expand t = alignBL $ hcat [u, hrule 1, reflectX u] where
             u = vcat [t, vrule 1, rotateBy (3/4) t]

ex = pad 1.1 . centerXY . lw 0.05 $ hilbert!!5

then type ex in the Haskell expression buffer and hit enter!


The prototypes subdirectory contains several quick hacks demonstrating various concepts.

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