Online Tool Store
Spam Score Estimator
Check pasted email text for common spam signals — trigger phrases, excessive caps, exclamation marks, and link density — with a 0-100 score.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example shown — a deliberately spammy sample. Replace it with your own text.
How the spam score estimator works
- Paste an email's subject and body text.
- The tool checks it against five common spam-associated patterns — trigger phrases, excessive capitalization, exclamation marks, link density, and cash mentions.
- Each detected signal adds points toward an overall 0-100 score, shown with a color-coded risk level.
FAQ
Is this the same scoring engine that email providers actually use?
No — real spam filters (like SpamAssassin, or Gmail's internal systems) use hundreds of signals, sender reputation, authentication records, and machine learning trained on huge datasets. This tool checks a handful of visible, common patterns as a quick heuristic sanity check, not a production-grade spam filter.
What signals does it actually check?
Common spam trigger phrases (like "act now" or "risk free"), an unusually high proportion of ALL CAPS text, excessive exclamation marks, a high density of links, and specific dollar-amount mentions — all patterns genuinely associated with spammy or promotional email content.
My legitimate marketing email scored high — what should I do?
Treat the flagged signals as a style checklist, not a verdict — toning down urgency language, reducing exclamation marks, and trimming excessive links are all generally good practices for deliverability and reader trust, regardless of what any specific score says.
Is my email text sent anywhere?
No. The analysis runs entirely in your browser as you type — nothing is sent to Online Tool Store or any other server.
How we compare
| Feature | Online Tool Store | Mail-tester.com | Manual proofreading |
|---|---|---|---|
| Instant, no email sending required | ✓ | Requires sending a test email | ✓ |
| Checks sender authentication (SPF/DKIM) | Content only | ✓ | Not checked |
| Free, no account | ✓ | ✓ | ✓ |
For a quick content-style check before sending a marketing or transactional email, the Online Tool Store Spam Score Estimator flags common red flags instantly.