Email Spam & Inbox Placement Checker
Paste an email subject line, sender address and body and get an instant read on where it is likely to land: the Primary inbox, a Promotions, Social or Updates tab, or the spam folder. You get a spam-risk score from 0 to 100, the exact words, formatting, link and sender-address patterns that push mail down, and a fix-first plan. It accepts plain text or pasted HTML.
🔒 Runs 100% in your browser. This tool makes zero network calls, so nothing you paste ever leaves this page.Auto detects whether your body is plain text or HTML. Force one if the guess is wrong. Everything is analysed on this page with heuristics; nothing is sent anywhere.
Predicted inbox placement
Most likely tab: …
Checking…
This is a heuristic estimate, not a guarantee. Real inbox placement also depends on your sending reputation, list hygiene and each recipient's own history, none of which a browser tool can see. Fix the authentication side with the Email Deliverability Checker. Everything here runs on this page and nothing you paste ever leaves your browser.