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Free Passive Voice Checker

Find sentences written in passive voice, with the exact sentences flagged so you can revise them.

Built and fact-checked by the DocNectar team — see our editorial standards

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Passive voice isn't inherently wrong — it has legitimate uses, like when the actor doesn't matter or isn't known ("the window was broken") — but overusing it tends to make writing feel vague, indirect, and less confident than active voice. Most style guides recommend keeping passive voice to a small minority of sentences in most writing.

This tool scans your text sentence by sentence, flags each one that uses passive construction (a "to be" verb paired with a past participle, like "was written" or "is being reviewed"), and shows you the overall percentage of your writing that's passive.

How it works

Paste your text and the tool splits it into sentences, checking each one for a passive voice pattern — a form of "to be" (is, are, was, were, be, being, been) followed by a past participle. It lists every flagged sentence individually along with the overall percentage of passive sentences in your text.

  1. Paste your text.
  2. Click Check for Passive Voice.
  3. Review each flagged sentence and the overall passive percentage.

Examples

Spotting an obvious passive sentence

"The report was written by the team" gets flagged as passive — rewriting it as "The team wrote the report" makes the sentence more direct and typically shorter.

Checking overall passive voice usage

Running a 20-sentence article through the checker and seeing a 25% passive rate flags an opportunity to revise several sentences toward more direct, active phrasing.

Who should use it

  • Reviewing a draft article or essay for overuse of passive voice before publishing.
  • Checking business writing (emails, reports) for more direct, confident phrasing.
  • Learning to recognize passive voice patterns in your own writing over time.

Industry applications

  • Content writing and editing
  • Business communication
  • Academic and technical writing

Advantages

  • Flags every individual passive sentence, not just an overall score.
  • Shows a clear passive percentage across the whole text.
  • Instant, with no signup or word limit up to 20,000 characters.

Limitations

  • Pattern-based detection can occasionally flag a false positive or miss an unusual construction.
  • Doesn't rewrite sentences for you — you still need to revise flagged ones yourself.
  • Doesn't distinguish appropriate uses of passive voice from ones worth revising.

Common mistakes to avoid

  • Treating every flagged sentence as automatically wrong rather than using judgment about whether passive voice fits there.
  • Over-correcting to eliminate all passive voice, even where it reads more naturally (e.g. "mistakes were made" style admissions, or when the actor is genuinely unknown).
  • Not rechecking after revising, since a rewritten sentence can still contain a different passive construction.

Best practices

  • Use flagged sentences as prompts to reconsider phrasing, not as errors that must all be fixed.
  • Prioritize the most important or most-read sentences (opening lines, headlines) for active-voice revision first.
  • Keep passive voice where it's genuinely appropriate — don't force awkward active constructions to eliminate every instance.

Tips

  • Don't aim for zero passive voice — aim to reduce unnecessary passive constructions where an active rewrite would be clearer.
  • Read a flagged sentence aloud in both its passive and an active rewrite to judge which actually reads better in context.

Frequently asked questions

Yes, with no signup and no limit on how much text you check (up to 20,000 characters per request).
No — it has legitimate uses, such as when the actor is unknown or unimportant, or in formal/scientific writing conventions. The goal isn't zero passive voice, just avoiding overuse that makes writing feel vague or indirect.
This tool uses a pattern-matching heuristic (a "to be" verb followed by a past participle), which occasionally flags a sentence that isn't truly passive — like "I am tired" is grammatically similar in structure but isn't a passive construction. Always use your own judgment on flagged results.
There's no universal number, but most style guides suggest keeping passive voice to a small minority of sentences — often cited informally as under 10-15% — in most general writing.
Identify who or what is performing the action and make that the subject of the sentence. "The ball was thrown by John" becomes "John threw the ball."
Checks are linked to your browser session so you can revisit them — your text isn't shared with anyone else.

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