Grammar Checker & learning tools
A Comparative Ten-Year Study
Introduction
How effective are grammar checking programs at finding errors and suggesting corrections? Here, we will examine how well several popular word processors and one grammar checking utility for the Mac find and correct common grammar and usage errors. We will compare Microsoft's Word (both the Windows and the Mac versions of the program), Corel's WordPerfect (Windows only), Grammarian Pro X (Mac only), and Open Office Writer with the LanguageTool extension added (platform independent) for their ability to find and identify the twenty most frequent errors.1
Daniel Kies
Department of English
College of DuPage
WhiteSmoke Writer 2010
Unmatched Grammar Checker
Correct grammar and punctuation.
- NEW! Writing Review
Evaluate readability.
- Unique Spell Checker
Fix typos and spell words.
- Innovative Style Checker
Enhance your sentences.
- Accurate Error Explanations
Learn from your mistakes.
While it's true that grammar checking software has many limitations, using a free online grammar checker can be useful in certain circumstances. For example, students who are learning English as a second language may find that free online grammar checkers help them learn to more easily spot errors in their writing.
If you are looking for free online grammar checkers, consider one of the following resources:
White smoke, Free Online Grammar Checker
Our online grammar checker is a free web application that allows you to check grammar, spelling, and writing style for free! There is a character limit, but apart from that, you get full access to the WhiteSmoke grammar checking engine and style checker. We sincerely hope you'll benefit from this free service we provide. if you need more features, consider the full WhiteSmoke Writer desktop application for correcting and enhancing your English writing.
- Spellchecker.net lets you copy and paste text into an online tool to quickly identify spelling and grammar errors. An online thesaurus is also available for your convenience.
- AbiWord 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 Linux, Mac OS X (PowerPC), and Microsoft Windows. The interface is similar to Microsoft Word, making this program very easy to use. Import and export filters let you convert documents to HTML, Rich Text Format, and OpenDocument for greater convenience.
- Language Tool is a free open source grammar checker that is designed to help users identify the most common grammatical mistakes in their text. Language Tool works to detect errors in English, German, Dutch, and Polish, but limited support is also available for French, Spanish and Italian. However, it is important to realize that Language Tool does not contain a spell checking program.
- Grammar Slammer is a spelling and grammar checker that uses a taskbar and integrated search to help identify errors in a document and suggest corrected text. You can download a free 21 day trial of this program or purchase the full version of the software for $49.

