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Grammar: 8 Free Online Resources

Whether you are writing or teaching grammar, everyone can use some grammatical help once in a while.  Luckily, there are several great resources readily available online  — and they just so happen to be free.






  • Grammarly has a free online tool that will check your writings for grammatical errors.  Errors are underlined in red or green.  Not only will it find misspelled words, but it also makes punctuation and word choice suggestions.
  • You can also download an app that will run in Chrome and find all of your mistakes (for better or worse) in everything you write while in Chrome.  They also have downloads for Microsoft Office and Outlook.
  • A free plagiarism checker is also available.
  • They also have a blog where everything related to grammar is discussed, along with tips, quizzes, and trivia.
  • Subscriptions are also available and they range in price from $11.66 – $29.95.

Guide to Grammar and Writing


This guide to grammar and writing is sponsored by the nonprofit Capital Community College Foundation and is dedicated to the late Dr. Charles Darling (the creator of this online guide).

  • A wealth of grammar information is contained on this site; charts, examples, and quizzes accompany each grammar lesson.
  • This site contains over 170 online quizzes.
  • Navigating the site is made easy by well-organized drop-down menus, a search box, and an extensive index.
  • A FAQ section provides answers to a number of common grammatical issues, like “affect versus effect” and “beginning a sentence with the world and or but“.

Learn English Kids


British Council

This site is created by United Kingdom’s international organization for cultural relations and educational opportunities.  Learn English Kids has online games, stories, lessons and activities to help elementary aged children learn English. This site teaches spelling, writing, reading, and grammar.

  • Registration is required to access certain areas of the website (registration is free).
  • A variety of grammar rules is explained through short videos.  Printable worksheets and answer keys are included with each video (registration is required to access these worksheets).
  • Contains printable grammar tests, quizzes and reference cards .  Grammar rules and brief examples precede the grammar test sections.
  • Practice your English grammar with simple interactive online games.
  • Learn English also has two other websites LearnEnglishTeens and TeachingEnglish.

One Stop English


free & $ is a teacher resource site, part of Macmillan Education, one of the world’s leading publishers of English language teaching materials.

  • Grammar is explained in their grammar reference section.  These explanations are easy to follow and concise.
  • You can also sign up for different weekly newsletters (lesson plan may be included).
  • Registration is required to access this site and at least half of this site is for subscription members only (teachers/institutions).

The Learning Center at D'Youville College

Online Writing Lab (OWL)


The Learning Center at D’Youville College

This site is a good reference tool for teachers or older students looking for information regarding grammar, sentence structure, and punctuation.

  • Use OWL to learn and review basic grammar rules.  The topics covered on this site include  sentence construction, common sentence construction errors, agreements and the parts of speech.
  • Examples and online practice exercises accompany these mini-lessons.

OWL at Purdue

Online Writing Lab (OWL)


Purdue University

At Purdue’s Online Writing Lab students and teachers can learn all about grammar and the mechanics of writing (among many other things).

  • Grammar topics covered are spelling, numbers, adjectives, adverbs, appositives, articles, prepositions, pronouns, nouns and verbs.
  • The parts of speech are covered in another area of the website, under the Mechanics section.
  • Printable grammar exercises (and answers) are available online and listed by topic

Using English

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