Email spam-word checker
Quick verdict
As of 2026-07-08, this free spam-word checker scans your subject line and email body against 50 known spam-trigger words across 4 categories, highlights every match, and returns a 0–100 deliverability risk score. It runs entirely in your browser — nothing you paste is sent to a server — so you can clean up risky copy before you hit send.
Paste your subject line and email body below. This free checker highlights the spam-trigger words that can hurt deliverability and gives your copy a 0–100 risk score — entirely in your browser, with nothing sent to a server.
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Paste a subject line and body above to see flagged words and a deliverability risk score. Nothing you type leaves your browser.
Deliverability risk score: 0/100 · Clean
Flagged words
Your copy, highlighted
Which words get flagged
The checker matches your copy against 50 common spam-trigger words, grouped by why inbox filters distrust them:
| Category | Example trigger words | Why filters flag it |
|---|---|---|
| Money & discounts | free, for free, free gift, free money, cash, cash bonus, cheap, discount | Copy built around free stuff, cash, and steep discounts is the most over-used pattern in bulk mail, so filters weight it heavily. |
| Urgency & pressure | act now, apply now, buy now, order now, call now, limited time, urgent, expires | Manufactured urgency ('act now', 'expires') is a classic spam and phishing tell that pressures a click before the reader thinks. |
| Overpromises | guarantee, guaranteed, risk-free, no risk, no obligation, no catch, no strings attached, miracle | Guarantees and 'risk-free' miracle claims read as too-good-to-be-true, the hallmark of a scam pitch. |
| Shady & scammy | click here, click below, congratulations, winner, you have been selected, dear friend, this is not spam, increase sales | Phrases lifted straight from scam and mass-mail templates — a strong signal on their own. |
Clean copy is one lever; sender reputation, authentication, and list hygiene are the others. Word list v1 — a transparent heuristic, not a guarantee your email reaches the inbox.
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