Best online French grammar checkers in 2023

Updated: March 11, 2023 by Mylene in French Grammar  ▪  

best french grammar checkers

Whether you are writing a dissertation, a formal essay, or a blog post, your aim is to produce the most readable manuscript and to avoid outright French grammar mistakes. Having a piece of text riddled with French grammatical and spelling errors is not only distracting for your readers, but also can hurt your reputation and raise doubts about your knowledge and expertise in a subject.

While you should consider hiring a professional copy editor if you’re writing a novel, there are a number of online French grammar tools that everyone can use for free. These online tools let you correct most of the errors in your texts. Preparing an error-free piece of text in French without spelling, grammar, and punctuation mistakes is what takes a manuscript from good to great. It’s the trademark of great content.

I have reviewed the best French grammar checker online software that will make your writing error-free. Before starting the comparison of the best French grammar checkers, I would like to give a general overview of grammar checkers and how they really work:

What is a grammar checker?

A grammar checker is a tool or software that can verify common spelling and grammar errors. Grammar checkers go beyond verifying spelling mistakes, they check grammar too. A grammar checker ensures that:

  • sentences are properly structured and grammatically correct
  • words are spelled checked and have no basic typos
  • punctuation is addressed correctly and is consistent

At this point, you know that French grammar checkers can rescue you. Next, you’ll discover the specific problems that a grammar checker can identify and fix.

What kinds of errors does a French grammar tool find?

Basically, a good French grammar corrector should be able to quickly check the text you’ve written, highlight potential errors, and suggest corrections. Some common errors that a French grammar checker can find are:

  • tricky spelling errors
  • punctuation errors
  • gender errors (un, une)
  • conjugation errors (subjonctive…)
  • article (le, la, du, de la)
  • subject-verb agreement
  • singular/plural nouns

If you desire to gain further knowledge on singular and plural words, you may refer to the following two articles: the first addresses the proper writing of the days of the week in French and the second tackles the French color adjectives’ agreement.

Do you really need a French grammar checker?

It’s important to use a grammar checker before turning in your essay or sending a professional email in French. In a business context, poor language structure is one of the main reasons for losing customers, arrangements, and missing professional opportunities. In a competitive job market, there’s never been a more important time for jobseekers to polish their resumes and avoid all kinds of grammar and spelling mistakes to make their applications stand out.

How To Use A Grammar Corrector?

I still remember the book I used when I was a student, the Bescherelle. I still use it sometimes. Nowadays, grammar correctors are online and automated. They provide a complete analysis of a text. Most grammar checkers are free. You just have to paste your text on the required field. Then click the button to start the verification. That’s it!

But be aware that grammar checkers aren’t perfect.

Automated checkers have their limitations. A grammar checker cannot replace a human corrector because these tools don’t have the ability to reason like a human and understand things in their context.

French grammar checkers

Pick a robust grammar checker tool that you can rely on to catch your writing mistakes. While some French grammar correctors are great and provide you with comprehensive writing feedback, other tools can make your text worse and alter the meaning of your sentences.

To choose the best tool, I put the many online French grammar tools to the test.

For that, I took an extract of Le Petit Prince de Antoine de Saint-Exupéry. Here is the original text in French:

Il me fallut longtemps pour comprendre d’où il venait.

Le petit prince, qui me posait beaucoup de questions, ne semblait jamais entendre les miennes. Ce sont des mots prononcés par hasard qui, peu à peu, m’ont tout révélé. Ainsi, quand il aperçut pour la première fois mon avion (je ne dessinerai pas mon avion, c’est un dessin beaucoup trop compliqué pour moi) il me demanda :

– Qu’est-ce que c’est que cette chose-là ?

Then I rewrote the extract and I added 12 mistakes on purpose. Words with errors are in bold:

Il me fallu longtemps pour comprendre d’il venait.

Le petit prince, qui me posait beaucoup des questions, ne semblait jamais entendre la miennes. Ces sont des mots prononcés par hasard qui, peu de peu, m’ont tout révélé. Ainsi, quant il aperçut pour la première fois mon avion (je ne dessinerai pas ma avion, c’est un dessins beaucoup très compliqué pour moi) il mon demanda :

– Qu‘est que c’est que cette chose-là ?

Now let’s see if the following 7 French grammar checkers can find these 12 mistakes.

bonpatron franch grammar checker

Bon Patron is a writing assistant that not only corrects grammar but also gives you comprehensive writing feedback.

bonpatron french grammar checker with an explanation

BonPatron found 10 of the 12 mistakes. It also offers good explanations in English.


Scribens found 5 of the 12 mistakes. The tool missed several mistakes! This is the reason why I don’t recommend relying on this tool.


reverso french grammar checker

Reverso provides corrections and suggestions and more information via an in-built French dictionary.

reverso french grammar checker

Reverso found 7 of the 12 mistakes.


You can use the Cordial tool to proofread and check for grammatical errors in social media updates, emails, or blog posts.

cordial french corrector

Cordial found 9 of the 12 mistakes. Cordial found more mistakes than reverso and Scribens.


correctiononline french grammar checker

CorrectionOnline found only 6 of the 12 mistakes.


It’s a French grammar checker with explanations in French. If you’re a French beginner, you may not understand all the explanations.

french language toolgrammar checker

LanguageTool found 7 of the 12 mistakes.

What is the best French grammar checker?

Regarding the results of this comparison, the best French grammar checkers that found most of the errors are:

  1. BonPatron
  2. Cordial

French grammar checkers: The alternatives

If you have grammar questions, you can use the forum of Wordreference or Reddit. This will allow you to better understand grammar rules.

The best French grammar checker is a human expert.

The linguist Geoffrey K. Pullum argued in 2007 that they were generally so inaccurate as to do more harm than good:

For the most part, accepting the advice of a computer grammar checker on your prose will make it much worse, sometimes hilariously incoherentGeoffrey K. Pullum

Improve Your French

Now that you’ve learned about different French grammar checkers and discovered a few alternatives, you can use your creativity to write dissertations, formal essays, and blog posts in French without any grammar or spelling errors.

Looking to discover a wide variety of great content? Check our videos on YouTube and on Instagram to listen to French content posted every week. Speaking French and mastering the art of communication can be challenging, even for native speakers!

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2 Responses to “Best online French grammar checkers in 2023”

  1. Oceane
    July 22, 2021 at 1:06 pm

    Bonjour, J ai trouve votre blog tres interressant. J aurais quelque questions. Je dois utiliser le Francais business et l’ Anglais business dans mon travail. Je suis francaise vivant en Angleterre mais mon anglais est meuilleur que mon francais en plus je suis dyslexic. Pourriez vous m indiquer un free grammar checker qui puisse corriger mes emails en anglais et francais? J’utilise Ginger et Grammarly mais ils ne suis pas exellent a 100%. Je vous remercie d ‘avance. Oceane

    • Mylene
      August 1, 2021 at 8:05 am

      Bonjour Océane, je vous remercie tout d’abord pour votre message. Actuellement il n’y a pas de correcteur de texte fiable à 100%. Grammarly est une bonne option mais il ne peut pas corriger toutes les erreurs. Néanmoins il va vous aider à corriger un grand nombre d’erreurs. A bientôt !

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