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Dependencies aeson, async, base (>=4.7 && <5), bytestring, charter, containers, http-types, MonadRandom, mtl, one-liner, process, random, scientific, text, wai, warp [details]
License BSD-3-Clause
Copyright 2020 Chris Penner
Author Chris Penner
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Source repo head: git clone
Uploaded by ChrisPenner at 2020-11-14T00:50:46Z
Executables charter-exe
Downloads 313 total (9 in the last 30 days)
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Readme for charter-

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charter is a typed Haskell layer on top of Google Charts which allows quickly and easily visualizing your Haskell data in the browser!

It also provides live-updates as your data changes in Haskell-land.

Why Google Charts?

Google Charts provides a large amount of flexible data representations which use a relatively consistent data format, making it easy to switch between chart types.


Goals of this library include:

  • Quick to start
  • Batteries Included
  • Well-typed, but not at the expense of usability
  • Smooth learning curve as you add more complex options to your charts
  • Live chart updates!

Non-Goals of this library include:

  • Writing charts to disk: sorry, try taking a screenshot of your browser instead!
  • Performance: All your data turns into JSON and gets piped through the browser, it'll be slower than other solutions on large datasets.
  • Composability with other solutions: This library is "battery included" and doesn't provide many extension points.


  • Better Date, Time, and DateTime support
  • Support for Geocharts, TreeMaps, Tables, Timeline, Gauges
  • Support multiple charts on a screen
  • Support combo charts