Download CasualConc

CasualConc is freeware.  You can use it and redistribute it freely as long as you properly cite it (this just means that you can't distribute CasualConc as your own product).  CasualConc is still in Beta.  Please backup your corpus files or create a copy of your corpus before you use it (although CasualConc does not intentionally change your files unless you choose to do so).  Also check known issues on this page.

ATTENTION: If you updated R to 3.3, you need to uncheck/check Use R for Visualization in Preferences to re-install necessary packages.

The current version is 2.0.7 (2017/06/09).

System RequirementsMac with Mavericks (10.9) or later (including 10.11 El Capitan)

The manual is available for this version. Full Size version is almost twice as large but with clearer images (screenshots).

CasualConc 2.0 Manual (On Google Drive) 

Updated on 2016/09/18

If you use this for academic publication, I would appreciate if you could cite this application in your paper/book.

For example, if you download version 2.0.6 in 2016, the citation in APA format looks like this:

Imao, Y. (2016). CasualConc (Version 2.0.6) [Computer Software]. Osaka, Japan: Osaka University. Available from

Here's a slideshow which introduces new features (in Japanese, but you can probably get a basic idea of what are possible with this new version).

To download applications other than CasualConc, please go to individual application's page from Other Applications on the left (under Navigation).

For pre-Mavericks Macs, try the following older versions.

The current beta version is 1.9.8 beta (2015/05/09).

The current beta version is 1.9.7 beta (2014/12/05).

System Requirements: 64-bit Mac (Core 2 Duo or later) with Snow Leopard (10.6) or later NOT ON 10.5 Leopard

NOTE: CasualConc beta is compatible with Mountain Lion (10.8), but it is not signed, so you need to two-finger click (or right-click) the application and select Open from the context menu for the first launch. See this page on Apple site for more information.

You can find information about the beta version on this page.

I would appreciate any feedback on functionality/accuracy/bugs/etc.  I will try to implement useful functions and improve usability as well as to fix bugs as much as my time and, more importantly, scripting skills allow.  Please send any feedback to casualconc (at)