A proof-reading tool for English, Spanish, German, Polish, Chinese, French, Russian, Italian, Dutch and more languages
Version 3.8, 2017-06-27
Copyright (C) 2005-2017 the LanguageTool community and Daniel Naber (www.danielnaber.de)
Homepage: https://www.languagetool.org
- Java 8 or later
- For LibreOffice/OpenOffice.org integration:
- LibreOffice 3.5.4 (or later) or
- Apache OpenOffice 3.4.1 (or later)
To integrate LanguageTool into LibreOffice or OpenOffice.org, you can use two methods:
-
Double-click
LanguageTool-3.8.oxt. The extension should start installing. Follow the on-screen instructions. -
If the above method doesn't work, call
Tools > Extension Manager > Add...in LibreOffice/OpenOffice.org and browse for theLanguageTool-3.8.oxtfile.
Close and restart LibreOffice/OpenOffice.org Writer. Remember to close the QuickStarter as well if you use it. Type text with an error, e.g. "Feel tree to do so." - make sure the text language is set to English for this example.
You should see a blue underline under the word "tree" after about a second. Opening the context menu with the right mouse button on that word offers you a short description of the error and a correction ("free").
If you are using LibreOffice and you want to check English or Russian texts:
Use Options -> Language Settings -> Writing Aids -> Edit... in the
Tools menu to disable LightProof and enable LanguageTool for English.
Note that there will also be a new menu item "LanguageTool"
under the Tools menu.
If the native spelling and grammar dialog doesn't check grammar,
make sure that the check box Check Grammar is checked in it
(if the window closes because of no mistakes in the document,
simply make any spelling mistake to make it open for a longer
time, and check the box). Check also if LanguageTool is visible
under Grammar in Tools > Options > Language Settings > Spelling
for your language. Note: you can disable the grammar check without
uninstalling LanguageTool simply by clearing the check box next to
LanguageTool in the same dialog.
Please see https://www.languagetool.org/issues/ if you experience problems.
To use the stand-alone version, double click on the languagetool.jar file
or call java -jar languagetool.jar from the command line.
When using Java 9, start LanguageTool using java --add-modules java.xml.bind -jar languagetool.jar.
Without that parameter, you'd get an java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
error.
To check plain text files from the command line, use
java -jar languagetool-commandline.jar -l xx <filename>
with xx being the code for your language, e.g. en-US for American English
or just en for English without spell checking activated.
On 2013-08-08 we moved our source code from Subversion at Sourceforge to git at github (https://github.com/languagetool-org/languagetool). Most history has been preserved. History in git is lost for:
- binary files
- branches and tags
If you need this history, the old subversion repository is still available at http://svn.code.sf.net/p/languagetool/code/trunk/languagetool/.
Unless otherwise noted, this software is distributed under the LGPL, see file COPYING.txt
See third-party-licenses/README.txt for the copyright of the external libraries.
Some language's spelling dictionaries contain frequency data. This is taken from the Mozilla-B2G Gaia project (https://github.com/mozilla-b2g/gaia/) which again takes it from Spell On It (http://www.spellonit.com/downloads/frequencies/). The frequency data is released under Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).
The Asturian data for part-of-speech tagging are from the Freeling dictionary, licensed under GNU General Public License. Contributor(s): Xesús González Rato esbardu@softastur.org
Spellchecker dictionary is based on dict-be-official-2008-20140108.oxt from http://bnkorpus.info/download.html under Creative Commons Attribution/Share-Alike 3.0.
The Breton data for part-of-speech tagging is based on the Apertium Breton dictionary under GNU General Public License with permission of its authors:
Copyright (C) 2008--2010 Francis Tyers <ftyers@prompsit.com>
Copyright (C) 2009--2010 Fulup Jakez <fulup.jakez@ofis-bzh.org>
Copyright (C) 2009 Gwenvael Jekel <jequelg@yahoo.fr>
Development supported by:
* Prompsit Language Engineering, S. L.
* Ofis ar Brezhoneg
* Grup Transducens, Universitat d'Alacant
The Breton FSA spelling dictionary is based on the Breton Hunspell dictionary "Difazier Hunspell an Drouizig" (0.13) licensed under the Lesser GNU Public License (LGPL), available at: http://extensions.libreoffice.org/extension-center/an-drouizig-breton-spellchecker/releases/0.13/difazier-an-drouizig-0_13.oxt
The Catalan data for part-of-speech tagging were created by Jaume Ortolà based on the Freeling 3.0 and Softcatalà 2.5.0 dictionaries, both released under the GNU General Public License. See: https://github.com/Softcatala/catalan-dict-tools
The Chinese data and code for part-of-speech tagging is based on ictclas4j project (http://code.google.com/p/ictclas4j/) under Apache License 2.0.
The Danish tagger is based upon data from Stavekontrolden - Danish dictionary for Hunspell. © 2012 Foreningen for frit tilgængelige sprogværktøjer. These files are published under the following open source licenses: GNU GPL version 2.0, GNU LGPL version 2.1, Mozilla MPL version 1.1 http://www.stavekontrolden.dk Stavekontrolden is based on data from Det Danske Sprog- og Litteraturselskab (The Danish Society for Language and Literature), http://www.dsl.dk.
The Dutch data are partly based on Alpino parser for Dutch by Gertjan van Noord and is released on LGPL license. Alpino is available at http://www.let.rug.nl/~vannoord/alp/Alpino/. The POS tag system and values come mostly from OpenTaal, www.opentaal.org.
The English data for part-of-speech tagging are based on:
Automatically Generated Inflection Database (AGID) version 4, Copyright 2000-2003 by Kevin Atkinson kevina@gnu.org The part-of-speech database is taken from Alan Beale 2of12id and the WordNet database which is under the following copyright:
This software and database is being provided to you, the LICENSEE, by
Princeton University under the following license. By obtaining, using
and/or copying this software and database, you agree that you have
read, understood, and will comply with these terms and conditions.:
Permission to use, copy, modify and distribute this software and
database and its documentation for any purpose and without fee or
royalty is hereby granted, provided that you agree to comply with
the following copyright notice and statements, including the disclaimer,
and that the same appear on ALL copies of the software, database and
documentation, including modifications that you make for internal
use or for distribution.
WordNet 1.6 Copyright 1997 by Princeton University. All rights reserved.
THIS SOFTWARE AND DATABASE IS PROVIDED "AS IS" AND PRINCETON
UNIVERSITY MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PRINCETON
UNIVERSITY MAKES NO REPRESENTATIONS OR WARRANTIES OF MERCHANT-
ABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE
OF THE LICENSED SOFTWARE, DATABASE OR DOCUMENTATION WILL NOT
INFRINGE ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR
OTHER RIGHTS.
The name of Princeton University or Princeton may not be used in
advertising or publicity pertaining to distribution of the software
and/or database. Title to copyright in this software, database and
any associated documentation shall at all times remain with
Princeton University and LICENSEE agrees to preserve same.
Alan Beale 2of12id.txt is indirectly derived from the Moby part-of-speech database and the WordNet database. The Moby part-of-speech is in the public domain:
The Moby lexicon project is complete and has
been place into the public domain. Use, sell,
rework, excerpt and use in any way on any platform.
Placing this material on internal or public servers is
also encouraged. The compiler is not aware of any
export restrictions so freely distribute world-wide.
You can verify the public domain status by contacting
Grady Ward
3449 Martha Ct.
Arcata, CA 95521-4884
grady@netcom.com
grady@northcoast.com
For more information on wordlists used, see agid-readme.txt.
Part Of Speech Database, compiled by Kevin Atkinson kevina@users.sourceforge.net
The part-of-speech.txt file contains is a combination of "Moby (tm) Part-of-Speech II" and the WordNet database (see above and pos-readme.txt).
Released to public domain, see resource/en/12dicts-readme.html.
Public domain Moby wordlists were used also for generating POS tag information for common proper names.
For more information, see the scripts in the source directory
languagetool-language-modules/en/src/main/resources/org/languagetool/resource/en/.
The French data for part-of-speech tagging are from the Dicollecte project. They are made available here under the terms of the Mozilla Public License 2.0 (http://mozilla.org/MPL/2.0/). See also detailed information in README_lexique.txt.
The Galician data for part-of-speech tagging were created by Susana Sotelo Docio based on Freeling and Apertium dictionaries. Both are licensed under GPL.
See https://github.com/languagetool-org/german-pos-dict: The German data for part-of-speech tagging is taken from Morphy (http://morphy.wolfganglezius.de/) with extensions and corrections from Julian von Heyl (https://www.korrekturen.de/flexion/) under Creative Commons Attribution-Share Alike 4.0.
The Greek dictionary only contains very few test entries for now, added by Panagiotis Minos. They are made available here under LGPL.
The Italian data for part-of-speech tagging is taken from Morph-it!, licensed under the Creative Commons Attribution ShareAlike 2.0 License and the GNU Lesser General Public License (LGPL) (see http://sslmitdev-online.sslmit.unibo.it/linguistics/morph-it.php).
The dictionary was obtained from these four sources: http://code.google.com/p/khmer-dictionary-tools/ - Part of Speech entries and words from
- Chuon Nath's dictionary released by the Buddhist Institute of Cambodia under a BSD License for the LanguageTool Project
- http://sealang.net/khmer/ - Part of Speech entries and words from Robert Headley's dictionary were released by Robert Headley under a BSD License for the LanguageTool Project
- http://www.panl10n.net/english/Outputs%20Phase%202/CCs/Cambodia/MoEYS/Software/2009/KhmerCorpus.zip Released under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License for the LanguageTool Project
- http://www.sbbic.org - The Society for Better Books of Cambodia has made changes to all these sources, correcting, and adding new words in order to improve the grammar checker - SBBIC releases these changes and additions under a BSD License for the LanguageTool Project
The data has been collected by Jithesh.V.S. of the Centre For Development of Imaging Technology (C-DIT), Thiruvananthapuram, Kerala, India (http://www.cdit.org/index/). It comes from public sources like newspapers, magazines, and novels. It is made available here under GPL.
The Polish data for part-of-speech tagging is from the Morfologik project, licensed on BSD (see http://morfologik.blogspot.com).
The Romanian data for part-of-speech tagging is developed by Ionuț Păduraru (http://www.archeus.ro). It's being released here on LGPL license.
Russian dictionary originally developed by www.aot.ru and licensed under LGPL. (http://www.aot.ru) or (http://sourceforge.net/p/seman/svn/HEAD/tree/trunk/Dicts/SrcMorph/RusSrc/) file (morphs.mrd). It was partially converted to fsa format in 2008-2011, 2014, 2016, 2017 by Yakov Reztsov. Frequency information for spell-checking dictionary from (www.aot.ru). Source frequency information (https://sourceforge.net/p/seman/svn/HEAD/tree/trunk/Dicts/SrcBinDict/WordData.txt). It was converted to use with spell-checking dictionary in 2014 by Yakov Reztsov.
The Slovak data were created by Zdenko Podobný based on Slovak National Corpus data (http://korpus.juls.savba.sk/). They are released here on LGPL license.
The dictionary was mainly obtained from the Freeling project:
- http://devel.cpl.upc.edu/freeling/svn/trunk/data/es/senses30.src
- http://devel.cpl.upc.edu/freeling/svn/versions/freeling-3.1/data/es/senses30.src
- http://garraf.epsevg.upc.es/freeling/
It is released under the GNU General Public License.
The Swedish data are based on DSSO. The Initial Developer of the Original Code is Göran Andersson. Contributor(s):
- Tom Westerberg tweg@welho.com
- Niklas Johansson sleeping.pillow@gmail.com
The Swedish Dictionary may be used under the terms of the GNU Lesser General Public License Version 2.1 or later (the "LGPL"). http://dsso.se
The Tagalog Tagset was designed by Nathaniel Oco. The words for the Tagger Dictionary were taken from the Philippine Literature Domain of Dalos D. Miguel's Comparative Analysis of Tagalog POS Taggers. The Tagger Dictionary and the Tagset are made available under LGPL. The Trigram Training Data is available at: The Trigram Training Data is available at: https://sourceforge.net/projects/tattoi.u/files/Trigram%20Text/
The Tamil dictionary, tagset and rules were created by Ve. Elanjelian tamiliam@gmail.com. It is released under GPLv3 licence.
- The work owes much to his previous work with Hunspell spellchecker, a project that has had many contributors including S. Muguntharaj, Radhakrishnan, Vijay, A. Suji, Malathi Selvaraj, Sri Ramadoss, Yagna Kalyanaraman, and Pranava Swaroop.
- The work also made use the Tamil corpus created by Crubadan 2.0 http://crubadan.org/ for shortlisting nouns and verbs. The corpus data is released under GPLv3, as well.
- The grammatical rules themselves are based on "thamizhnadaik kaiyEdu" (2004) and "thamizhil nAmum thavaRillAmal ezhuthalAm" (2007)
The Ukrainian data for part-of-speech tagging was created by Andriy Rysin. It's based on https://github.com/brown-uk/dict_uk project and is licensed under Creative Commons Attribution-ShareAlike 4.0 International license.