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24 B2B Email Subject Lines [Free Generator]

Everyone knows emails are a super-effective technique for generating leads in B2B marketing. Now you can also make sure your emails get opened with amazing B2B email subject lines!

Use our generator to get subject lines that:

  • Are all proven to work to get your emails opened.
  • Fits any type of industry
  • Are 100% free and ungated (no email required) 
  • Has unlimited uses: Generate as many subject lines as you wish!

Just fill in the blanks on the right sidebar and choose the ones you like the most!



Check out our other 13 Email Subject Line Generators:

Cart Abandonment Email Subject Lines // Cold Email Subject Lines // Follow Up Email Subject Lines // Newsletter Email Subject Lines // Onboarding Email Subject Lines // Product Launch Email Subject Lines // Promotion Email Subject Lines // Re-Engagement Email Subject Lines // Sales Email Subject Lines // Urgent Email Subject Lines // Webinar Email Subject Lines // Welcome Email Subject Lines

Generate leads with emails

There are many benefits of B2B email marketing. The most impactful advantages include:

  • You can approach new clients - Emails are a great way to meet new buyers anywhere in the world.
  • Measurable - Many tools can track how effective your email marketing is.
  • Cost-effective - Unlike other marketing channels, emails are much cheaper. 

There is no reason not to use B2B emails!


You have to make sure that your prospect opens your email. If they don’t open it, it’s like you didn't send it...

Don’t worry though! We are here to help you. Use our generator to create the best B2B email subject lines to get more leads. 

How to write B2B subject lines that get results

If you want to learn how to write the best B2B email subject lines, you should follow these 11 tips:

  1. Make it personal by using a name from the salesperson as the sender, so it doesn’t look like it’s from a company. 
  2. Research what is happening in their industry at the time and consider mentioning it.
  3. You can also use the name of the recipient to make the email more personal.
  4. Deliver in your email what you said you were going to deliver in the subject line. 
  5. Make it about them, not you. What can your product do for them?
  6. Use any referrals if you have them.
  7. Try not to make it sound too much like a “sales email”. 
  8. Keep it short with less than 60 characters. You want your whole subject line shown on all devices.  
  9. Consider if the words you use will end up in a spam filter. Words such as “free”, “winner”, “Guarantee” and so on will negatively affect your open rate. 
  10. Don’t be bold using all caps (HELLO), too many exclamation points (!!!), or ellipsis (...)
  11. And last but not least. Never use clickbait! The prospect might just unsubscribe to you.

Keep this in mind when you are writing B2B subject lines!

Do you want to make sure that your subject lines get your email opened?

Generate great subject lines in less than 51 seconds

Do you want to write the best B2B email subject lines, but find it hard to come up with interesting ones? With our generators, you'll be able to create amazing subject lines in no time.

On Emaildrips, you can get free access to email subject line generators for many different purposes. Whether it is newsletter emails, survey emails, cold emails, and many more. We divided the generator into different categories. So you can find what subject line that is the most relevant for the email you are writing. 

Do you want more ways to improve your email marketing? Our Convertscripts tool will help! 

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The name of your product/service is ____.

Your company name is ____.
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I help my audience ____.
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