Free Online Passive Voice Checker
A passive-voice checker scans each sentence for a form of the verb 'to be' followed by a past participle, the grammatical signature of the passive, then highlights every match and reports what share of your sentences use it.
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How to Use This Tool
- Paste or type your text into the box.
- Read the counts: total sentences, passive sentences and the percentage that are passive.
- Scan the highlighted sentences below — each one likely uses the passive voice.
- Rewrite the ones where the actor matters by making that actor the subject.
What Is a Passive Voice Checker?
The passive voice flips the normal subject-verb-object order so the thing acted upon becomes the subject: 'The report was written by Sarah' instead of 'Sarah wrote the report.' Grammatically, every passive construction combines an auxiliary form of 'to be' (is, are, was, were, been, being) with the past participle of a main verb. That two-part pattern is what this tool looks for, sentence by sentence.
Style guides have flagged the passive for over a century. Strunk and White's The Elements of Style and George Orwell's 'Politics and the English Language' both argue that the active voice is usually more direct, vigorous and concise. The passive is not an error, though — it is the correct choice when the actor is unknown ('The window was broken overnight'), unimportant, or deliberately obscured, and it is standard in scientific method sections. The goal is not zero passives but a low, intentional ratio.
Because English participles are irregular, no rule-based detector is perfect: this tool uses a heuristic (a 'to be' verb within a few words of an -ed or known irregular participle) and may miss or over-flag the odd case. Treat each highlight as a prompt to reread, not a command to rewrite. Everything runs in your browser; your text is never uploaded.
Frequently Asked Questions
How does it detect passive voice?
Is passive voice always wrong?
How do I rewrite a passive sentence?
Published by the WeGotEveryTool team. We build and test every tool in-house and update pages when the underlying spec, formula, or recommendation changes.
Reviewed: May 2026. Disclaimer: this tool is provided as-is for general informational use. For decisions with material consequences (medical, legal, financial, security) verify results against a qualified professional source.
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