BIMI Record Generator
Generate and validate DNS BIMI TXT records online. Display your verified official brand logo alongside authenticated emails in Gmail, Apple Mail, and Yahoo.
Cold Email Subject Line & Icebreaker Tester
Test cold email subject lines online. Score character length, word count, spam trigger dictionary detection, and simulate mobile inbox previews for Gmail and Apple Mail.
Disposable Email Detector
Identify temporary disposable emails, burner inboxes, and fraudulent signup domains to protect your sender reputation and SaaS conversion funnel.
DMARC Record Generator & Policy Builder
Generate and validate DNS DMARC TXT records online. Configure email authentication policies (none, quarantine, reject), RUA aggregate reporting, and SPF/DKIM alignment.
Email Client Preview Generator
Preview how emails look inside realistic Gmail webmail, Outlook desktop, Apple Mail iOS, and mobile lock screen notification shells online.
Email CTOR & Deliverability Health Calculator
Calculate Email Click-to-Open Rate (CTOR), Open Rate, CTR, and Bounce Rates online. Compare email marketing campaign performance against industry benchmarks.
Email Header Analyzer
Inspect raw email headers, trace SMTP relay hops, calculate network delivery latency, and audit SPF, DKIM, and DMARC security records.
Email HTML Formatter
Format and beautify complex nested-table email markup, clean up indentation, and preserve Microsoft MSO conditional tags.
Email HTML Minifier
Compress HTML email code, remove whitespace and redundant comments, preserve Microsoft MSO conditional tags, and prevent Gmail clipping.
Email Obfuscator & Anti-Spam Encoder
Protect your email address from spambots and scrapers. Generate obfuscated HTML hexadecimal entities, CSS reverse direction, and JavaScript dynamic injection.
Email Signature Generator
Design professional, cross-client HTML email signatures with custom colors, profile photos, and social media links. 100% free and private browser utility.
Email Spam Score Checker
Simulate SpamAssassin deliverability rules, detect red-flag spam words, and optimize your email copy to land directly in subscriber inboxes.
Email Subject Line Analyzer
Audit character length, simulate iPhone & Android mobile preview cutoffs, identify emotional power words, and prevent spam folder triggers.
Free Email List Cleaner & Deduplicator
Clean and sanitize bulk email lists online. Remove duplicate emails, filter invalid syntax, trim whitespace, remove role-based addresses, and export clean lists.
HTML Email Tester
Preview HTML marketing emails across multiple screen viewports, test dark mode rendering, and audit template compatibility.
Mailto Link Generator
Build custom mailto: URLs with pre-populated subject lines, body templates, CC, and BCC recipients. Generate HTML code, Markdown links, and CSS buttons.
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