22 Free Tools -- No Signup Required

Analyze your emails before you hit send

Paste a subject line, email copy, or domain name below. Get instant analysis and actionable insights to improve deliverability and engagement.

Email Analyzer
Ready to analyze

Paste anything email-related

Subject lines, email copy, domain names -- I'll analyze it instantly and point you to the right tool.

Instant analysis -- no signup or API key required

Trusted by teams sending through

Gmail
Outlook
SendGrid
Mailchimp
AWS SES
Email marketing analytics dashboard showing deliverability and engagement metrics
Email marketing tools and analytics that help you understand what works
$36

ROI for every $1 spent

21%

Emails miss the inbox

2.3M+

Tests run with our tools

22

Free tools available

Three steps to better emails

No learning curve. No setup. Just paste and go.

Step 01

Paste your content

Drop in a subject line, email body, domain name, or email headers. Our analyzer detects what you need automatically.

Step 02

Get instant analysis

In under 3 seconds, see spam scores, deliverability issues, DNS problems, and actionable recommendations.

Step 03

Fix and send with confidence

Follow our specific suggestions to improve your emails. Use our guides for deeper learning on any topic.

Latest from the blog

Guides, reviews, and tool updates.

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Email marketing team using free tools to improve deliverability and engagement
Teams use maillead.io tools to send better emails every day

Frequently asked questions

Everything you need to know about Maillead.

Is maillead.io free to use?

Yes. All 22 tools are free with no registration required. We offer paid deliverability audits for complex enterprise needs.

Who writes your guides and reviews?

Our content team includes former deliverability engineers from major ESPs and marketers who've managed lists from 1,000 to 10M+ subscribers. See our editorial standards.

How often are your tools updated?

DNS and blacklist data refresh in real-time. Spam word databases update monthly based on new filter patterns from Gmail, Outlook, and Yahoo.

Do you offer API access to your tools?

Enterprise API access is available for the Blacklist Checker and DNS Lookup tools. Contact us for pricing.

Ready to improve your emails?

Start with any of our free tools. No account needed.