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Subject Line Generator and Headline Analyzer: Tools to Write Headlines That Work

Your headline or subject line decides whether anyone reads the rest. These free tools help you generate options and score how engaging they are before you publish or hit send.

A headline analyzer result showing a Headline Quality Score of 35, below average

Generate Options

Enter your topic into the Subject Line Generator for a long list of titles you can use for blog posts, emails, and ads.

Stuck on a blog post? Enter one to five nouns into HubSpot's Blog Ideas Generator.

Test and Score

Test an email subject line with Omnisend's subject line tester to boost open rates before you send.

Run your headline through the Headline Analyzer for a quality score with strengths, suggestions, and engagement and impression scores.

Learn the Principles

Read Copyblogger's guide on how to write headlines that work, covering the eight types (Direct, Indirect, News, How-To, Question, Command, Reasons Why, and Testimonial).

It teaches the Four U's. A strong headline is:

  1. Useful to the reader.
  2. Urgent, giving a reason to act now.
  3. Unique, conveying that the main benefit is special.
  4. Ultra-specific, doing all of the above with precision.

AI tools like ChatGPT are also excellent for generating and pressure-testing headline variations. Feed it the Four U's and your draft and ask for ten alternatives, then run your favorites through the analyzers above. And if sharper headlines are part of a bigger push to win more customers, Talk to our Team about putting fractional sales leadership in place.

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