Passive Voice Checker
Paste any text to instantly highlight passive voice sentences. See your passive percentage and which constructions to fix for stronger, more direct writing.
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Passive Voice Guide
Why passive voice matters for SEO and readability
Passive voice isn't wrong — it's overused. When more than 10–20% of your sentences are passive, readers sense distance and vagueness. Search engines and readability algorithms (including Yoast's) penalize high passive voice scores because they correlate with hard-to-read content.
What passive voice actually is
Active: "Google indexed the page." Passive: "The page was indexed by Google." The subject receives the action instead of doing it. Often the "by whom" is dropped entirely, making it worse: "The page was indexed."
Why it weakens your writing
Passive voice hides the actor, inflates word count, and creates ambiguity. "Mistakes were made" — by whom? "Decisions were taken" — by which team? Readers lose trust when writing avoids responsibility.
Yoast and readability scoring
Yoast SEO's readability analysis flags passive voice if more than 10% of sentences use it. Their studies show passive-heavy content scores lower on engagement metrics and gets fewer backlinks.
When passive voice is appropriate
Scientific writing uses passive legitimately ("samples were tested at 37°C"). Legal writing uses it for precision. When the actor is unknown or irrelevant, passive is fine. Aim for intentional use, not accidental.
How to fix passive sentences
Find the actor hidden in the "by ___" phrase and move it to the subject position. If there's no "by ___", ask who performs the action and add them. "The report was completed" → "The team completed the report."
Target percentage
Aim for under 10% passive for marketing copy and blog posts. Under 20% for news articles and tutorials. Scientific and legal writing can go higher. Check what your best-performing pages score and use that as your benchmark.
Pro Tips
Don't rewrite everything — focus on your intro, headings (if any), and CTA sentences. These have the most impact on tone. The middle body can carry more passive without hurting the overall piece.
Passive voice used intentionally is a stylistic choice. Passive voice used because you're not thinking about who does what is a clarity problem. This tool helps you see which category you're in.
Use this alongside the Readability Checker for a full picture. High passive + low Flesch score = hard to read. Fix both for maximum clarity and SEO benefit.
Frequently Asked Questions
- How accurate is the passive voice detection?
- It catches the majority of passive constructions using auxiliary verb + past participle patterns. Edge cases in complex sentences or irregular verbs may be missed. For critical writing, pair with a human review.
- Does passive voice hurt SEO directly?
- There's no direct Google ranking signal for passive voice. The indirect effect is real: passive writing gets fewer backlinks, lower engagement metrics, and lower dwell time — all of which do affect rankings.
- What's a good passive voice percentage?
- Yoast recommends under 10% for a green light. Under 20% is acceptable. Over 20% in content aimed at a general audience is where engagement starts to drop noticeably.
- Can I use passive voice in headlines and titles?
- Generally no. Headlines are where you have 0.5 seconds to hook the reader. Active verbs ("How I tripled traffic") outperform passive frames ("How traffic was tripled") consistently in A/B tests.