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Citing Sources of Information: Writing for the Health Sciences: Grammar Programs

This LibGuide was designed to provide you with assistance in citing your sources when writing an academic paper.

Grammar programs

Grammar Programs

The following are free, open-source grammar/language-checking programs that can be downloaded onto your personal computer to assist with writing projects.


This is a free open source word processing program that includes a grammar checker.  It is supported on all of the most common operating systems, including. The interface is similar to Microsoft Word. Import and export filters let you convert documents to HTML, Rich Text Format, and OpenDocument.  

After the Deadline

After the Deadline checks spelling, detects misused words, checks style, and grammar.  It explains errors.  It contains a database of 1500 commonly misused words.  The style checker function finds complex phrases and suggests simple ones; locates passive voice; finds hidden verbs (also called abstract nouns, nominalizations); searches for redundant phrases and suggests what to eliminate, and finds cliches and bias language.  The grammar checker finds confused and repeated words; auxiliary verb agreement errors; determiner agreement errors; and wrong verbs used in infinitive phrases.

Graviax Grammar Checker

This share-ware program is hosted on  It contains a storehouse of grammar rules and will check your documents against those rules.


This is an open-source style and grammar checker for English and other languages.  It is a software tool used to detect errors that a simple spell checker cannot detect, such as mixing up there/their, no/Know, etc.  It can also detect some grammar mistakes.  It does not include spell checking.  LanguageTool will only find errors for which a rule is defined in its XML configuration files; rules for more complicated errors can be written in Java.  The program requires Java 5.0 or later.  This version only works with 3.0.1 or later.  It may also be downloaded as a free-standing program. 


Queequeg is a tiny English grammar checker for non-native speakers who are not used to verb conjugation and number agreement.  It focuses on those writing academic papers or business documents where thorough checking is required.  Different types of errors are shown in different colors.  Queequeg is named after a character in Herman Melville’s masterpiece, Moby Dick. 


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