What’s The Best Free Passive Voice Checker For You?

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passive checker

Are you looking for a reliable passive voice checker?

That’s an excellent idea. You should always avoid using the passive voice in writing as much as you can.

But sometimes it isn’t easy to spot when you are doing a quick proofread of your text. A much easier, and more accurate way to locate a passive sentence or passive construction is to use an online checker.

There are many free online tools you can use to help you. The bonus is that many of them will help you find other grammar errors and spelling mistakes as well.

The best tools will give you options or examples to change a phrase written in the passive voice to the active voice. But before I get to my list of useful tools, it worth understanding the difference between active and passive voice.


What is the passive voice?

Writing in the passive voice is a bad habit. But like all habits, you can break it if you put your mind to it.

Once you can identify where you are using it in your writing, you can change to the active voice. After a while, it will become a new good habit to write in the active.

When you write a sentence using the passive, it doesn’t tell the reader who is doing something. The reader knows something is happening or happened. But they have no way of knowing who did it.

It comes about when the subject of the sentence is not performing the action of the verb in the sentence.

The structure and the form of the verbs are to be plus the past participle. It can also use the verbs to have and to get in the causative form.

With passive voice sentences, we don’t know who is performing the action unless we add an operator.

For example, in the passive voice, the subject is usually a thing and not a person.


This house was built in 1970.
We don’t know who built the house because the house receives the action of the verb.

This house was built in 1970 by John.
Now we know who built the house because John is the operator. But this house, the sentence subject, is acted upon by the passive verb.


But if we change to the active voice, the subject is a person, and the sentence is much easier to understand.


John built this house in 1970.
Now it is clear who built the house.


In the English language, writing active sentences is always the best option.

You should use the active form in articles, fiction, blog posts and any form of messaging, email or general correspondence.

But in business and scientific writing, passive is used a little more frequently.

It is because there may be a need not to say who did something or to apportion blame.

A prepositional phrase is often used to introduce a topic.


In reply to your complaint, your delivery was delayed due to unforeseen circumstance.


There is also the causative form. It is sometimes called the have or get something done form. Again we don’t know who performs the action.

Take a look at these examples to help you identify the problem.


I really need to have my car serviced.

Joe has to get his hair cut before his interview.

You should have your blood pressure checked.

Are you going to get your computer repaired?


In the examples above, we don’t know who is performing the action.

We need to change these sentences in the active form.

It is an easy fix. Make sure that you have a person as the subject of the sentence who is performing the action of the main verb.


I really need to have the garage service my car.

Joe has to get the barber to cut his hair before his interview.

You should have your doctor check your blood pressure.

Are you going to get Apple to repair your computer?


Active voice is always a better choice to the passive or causative. It is clearer and much easier for readers to understand.

All you need to do is find the passive structures in your text and re-write them in the active form.


Read more: A guide to passive and causative structures and how to avoid using them.


The best free tools to find passive sentences and correct them


1. ProWritingAid

Prowritingaid is terrific writing tool and I use it a lot.

I use it mostly for checking long-form writing because there are just so many reports to help me improve a text.

But it is an excellent tool for finding and correcting passive structures.

Prowritingaid passive


As you can see from the image above, ProwritingAid finds the passive but also gives you helpful clues about how to fix your sentences.

Unlike other apps, the suggestions are based on the actual words in your sentence, so it is a very quick and easy fix for you.

Just click the one you prefer to automatically change your sentence to active voice. Or you can edit your sentence using a different subject.

Read our full review of ProWritingAid.


2. Grammarly

It is no surprise that Grammarly is my number two choice.

That is because I use it every day, day in and day out for my online writing.

For me, it is always on. Then it is only a matter of one click, and I can find and re-write any passive sentences.

Here is a screengrab of my Grammarly editor for this post as I was writing it in WordPress.

Grammarly for passive


You can see the passive structures are highlighted for you. On the right, there is an explanation and examples of how to change the voice.

It makes it easy for me to find any passive forms. Then I can quickly change and re-write these sentences to active voice.

The reason I have Grammary in second place is that it doesn’t use your words as Prowritingaid does. But it still does a great job.

You can read our full Grammarly review for more details.


3. Hemingway App

Hemingway passive

The Hemingway App is very well known as a great passive finder.

This is true. It is super fast and it gives you a very clear green highlight for every passive structure it finds in your writing.

But then it is up to you to change your sentences.

The Hemingway Editor doesn’t give you any examples. So there are no hints to help you re-phrase your sentences in the active construction.

Read our review of the Hemingway App and Editor


4. Ginger Grammar

Ginger grammar is super quick and easy to use as a free Chrome extension.

For bloggers, this is a great free tool to have.

It will work in unison with whatever blog editor you use on your site.


Ginger passive


Ginger will clearly underline any passive forms in your text. Then you can re-write them in the active form.

With the browser extension, you can correct your writing anytime you are writing online.

But one of the bonus features of Ginger is the sentence checker that uses contextual spelling correction.

It will mark your spelling errors based on the context of your sentence. It will find mistakes including bare and bear, to and too and many other common homonyms.


5. Grammar Check

If you want a really quick and easy way to check for passive in your writing, you can try Grammar Check.

It is an online app that is free to use and you don’t even need to register or supply your email address. That’s a nice change from a lot of free apps.

You don’t need to download any software either. All you need to do is paste in your text and then check for any words that are underlined.

When you click on the underlined text the app will tell you if it is the passive voice. There is also an option to give you an explanation about the grammar point.

grammar check passive

That is quite a lot of help for you from a simple free app.


More reading: Prowritingaid, Ginger and Grammarly Price Comparison



All of the free grammar tools I have mentioned above will do a great job for you. They will help you to write better and more accurately.

They will find your passive structures very fast, and then you can get to work on fixing them.

It doesn’t take much time to change to active sentences. It will improve your writing clarity.

No matter which one you select to use, you will be making a good choice.

I suppose Grammarly and ProWritingAid stand out for me.

They are the two that give you a little more help when you are re-writing your sentences.


Related reading: The 13 Best Free Grammar Check And Grammar Corrector Apps


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Derek Haines

Derek Haines is an Australian author, living in Switzerland.

4 thoughts on “What’s The Best Free Passive Voice Checker For You?

  • July 21, 2019 at 4:18 pm

    While passive voice should be avoided in narrative this does not apply to dialog. We do not stop and think before speaking that we must express something in the active voice. We speak in a mixture of both and characters will too.

    – In the causative form, which is sometimes called the have or get something done form, again we don’t know who performs the action.

    I really need to have my car serviced.

    Joe has to get his hair cut before his interview.

    You should have your blood pressure checked.

    Are you going to get your computer repaired?

    In the examples above, we don’t know who is performing the action. –

    Well yes, we don’t know who is performing the action (And are they really ‘actions’? They look like speech to me) – but they are assumable.
    Because you don’t get your car serviced by a hairdresser, you don’t get your blood pressure checked by the garage, your hair cut by computer technician, or your computer repaired by a doctor (or a plumber).

    Yes avoid passive if you can but don’t produce clunky sentences to achieve it.

  • July 20, 2019 at 8:24 pm

    Great article and the software suggested is quite helpful. I’ve used Grammarly and Hemingway for years.

    Still, the best free passive voice checker is one I’ve used for year. It doesn’t involve software so it works for those curmudgeons refusing technology, using only paper and pen.

    As an editing trick, I read my stories aloud. If I feel a sentence is passive, my quick test is to add “by zombies” to the end. If the sentence makes sense, I would say there is more likely a 90% or higher chance, the sentence is passive.

    To wit:
    The house was built in 1970 (by zombies.) Or, as per your second example – by John – which proved it.
    Both sentences are passive.

    I’ve used this trick for almost 15 years now. Needless to say, sometimes a passive sentence slips through, but that is part of the writing experience.

  • July 20, 2019 at 7:46 pm

    But can these apps be downloaded to a laptop? I do most of my writing on it.


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