CasualConc is a concordance program that runs natively on macOS 11.3 or later. The original version (pre version 1.0) was designed for casual use (preliminary analysis or non-research purposes), so the name is CasualConc. The current version (3.0.x) is probably good enough for more extensive use. It can generate KWIC concordance lines, word clusters, collocation analysis, and word count. This program is only tested with English text just because that is the only language I can understand other than Japanese (though I heard from some people that CasualConc works ok with other European languages, such as Greek, Italian, etc.). Technically, it should be able to handle any language macOS can. If you use CasualConc with languages other than English, let me know how well it works.

If you prefer to read in Japanese, 日本語サイトもあります。

A new version of CasualConc (3.0.3 beta) is released. There still would be many bugs, so please report any bugs your find.

Download: CasualConc 3.0 (on Google Drive)

Current Version: 3.0.3 - last updated on 2022/06/20

System requirement: Mac with macOS 11.3 or later with plenty of memory.

For more information about recent changes, check What's New.

CasualConc 3.0 Manual (On Google Drive)

Last updated: 2022/06/21 (based on version 3.0.3)

I created a grammar database file with Sherlock Holmes novels/shorts to test the new grammar search tool. All texts are in public domain, so there shouldn't be any copyright issue, but if there is, I'll take it down.

Sample Grammar Database (Sherlock Holmes novels) (On Google Drive)

The database is probably too small to enjoy full experience of the tool, but you should be able to taste what it is like. To use the file, unzip it and drag&drop the file on to the top left table in File view in Advanced Grammar mode.

File format: works best with plain text files (.txt) encoded in ASCII or UTF-8, but can handle other file types and other encodings. Reading non-plain text files will take more time to process. PDF files should be text-embedded. You can create database files from these file types except for PDFs for faster search.

If you use CasualConc, please send me any feedback, bug report, or feature request. Any comment will motivate me to improve CasualConc. Please email me at casualconc (at) (replace (at) with @).

By the way, CasualConc is freeware, but if you think it is useful, buy me coffee or good chocolate if we ever meet : ).

The current version (3.0.x) has a grammar search function based on dependency tags assigned by Stanford CoreNLP and visualization functions using the statistical environment R (needs to be installed separately).

The following samples are created entirely on CasualConc 3.0.x (with R in the background).

Cluster Analysis

Word Cloud

Radar Chart

Correspondence Analysis (row scores; 3D)



Network Analysis

Heat Map

Currently, 6 other language-related applications are also on this site. They require macOS 10.14 Mojave or macOS 10.15 Catalina and are also freeware.

These are:

CasualPConc - a simple parallel concordancer

CasualTagger - a tagging helper (?) application to assist tagging your corpus (includes English POS tagging with EngTagger or rbtagger); batch processing available.

CasualTextractor - a kind of file converter, extracting text information from Word/PDF/HTML etc files and save as plain text files. This also converts text encodings of plain text files.

CasualTranscriber - a transcription helper to assist transcribing video/audio files

CasualTreeTagger - a GUI front end of TreeTagger.

IPATypist - a helper application to type IPA characters.