Free Email Marketing & Deliverability Tools

Practical tools for anyone who sends email. Check your domain's authentication, catch spam triggers before you send, and sharpen your subject lines and preview text. No signup, no cost.

Domain & authentication

Set up and verify the DNS records that keep your emails out of the spam folder.

SPF Record Generator

Create a valid SPF record for your domain to prevent email spoofing.

Generate a record

DMARC Record Generator

Create a DMARC policy to protect your domain from spoofing and phishing.

Generate a policy

DMARC Testing Tool

Test your domain's DMARC, SPF, and DKIM records in one place.

Test your domain

Content & deliverability

Improve what you send before you hit the send button.

Email Spam Checker

Analyze your email's headers and content for spam triggers before sending.

Check an email

Subject Line Analyzer

Score your subject lines for better open rates and deliverability.

Analyze a subject line

Preview Text Generator

Craft preheader text that complements your subject line and boosts opens.

Write preview text

Email Marketing Savings Calculator

See how much you'd save by replacing your monthly email marketing subscription with a one-time Broadcast license.

Calculate savings

Why we built these

We make Broadcast, self-hosted email marketing software, so deliverability is our day job. Most email problems trace back to the same few causes: missing SPF or DMARC records, content that trips spam filters, and subject lines that don't earn the open. These tools help you fix each one, whether or not you ever use Broadcast. Everything runs free, with no account required.

Own your email platform

Broadcast is self-hosted email marketing software. Pay once, own it forever, and take full control of your email infrastructure.

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