Best Free Google Docs Proofreading Tools / Add-Ons

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Here in this article, we will get to know about some of the best Free Google Docs Proofreading Tools or Add-ons. Most of the proofreading add-ons on Google Docs are paid or offer free trials. I have mentioned 2 proofreading tools for Google Docs here that are free to use, and do their job pretty well. One of these tools are absolutely free to use, while the other one is free, but also has paid features.

So, without delaying things, let us get to know about these add-ons. We will see what they have to offer and talk about their usability.

You may want to checkout these Free Grammar Check Plugins For MS Word.

Here Are The Free Google Docs Proofreading Tools or Add-Ons:


LanguageTool is an absolutely free proofreading add-on for Google Docs. When you scan your document using this tool, it highlights and shows you the spelling and grammatical mistakes in your document. All the mistakes are listed on the interface of this add-on after scan. Click on a mistake, and it will point out the mistake in the document. It not only points out mistakes, but also shows the correction to be made. You can ignore a mistake if you want to. You can also create a custom dictionary by adding your own words.

The best part of this tool is that it is a Proofreading tool which supports more than 25 languages. These languages include: German, Russian, French, Polish, Spanish, etc. The word limit on this tool is 20000 characters, which would be pretty much for most of the users. This Google Docs Proofreading tool is pretty straight forward and does what it’s supposed to. I’d use it to quickly find out grammatical and spelling mistakes in a Word document.

This Add-on is available here.


GradeProof as a proofreading tool for Google Docs has both free and paid plans. The free plan lets you proofread unlimited documents for Spelling, Grammar, and Basic Rephrasing. It also supports Custom Dictionary feature. As you load this tool to check a document on Google Docs, it shows you the following:

  • Spelling Mistakes.
  • Grammar Mistakes.
  • Phrasing Mistakes.
  • Character, Word, and Sentence Count.
  • Readability.
  • Reading and Speaking Time.

There is a View Suggestions button which you need to click in order to proofread and edit documents. Above is the screenshot of the editor window that opens up as pop-up. The spelling mistakes are highlighted in red color; click on one to view suggestions and apply the correct option. The same way, you can locate and fix Grammatical and Phrasing errors. The Eloquence is a Pro feature, which comes as a trial feature with free version for 7 days. It lets you improve readability of sentences.

View the Free and Pro comparison of GradeProof here.

Get GradeProof for Google Docs here.

Wrapping Up

If you want to quickly proofread documents on Google Drive, these two options are best for you. Try them both and see which one suits your need the most.

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Free/Paid: Free

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