FREE TOOLS
Subject line generator
Get high-performing subject lines in seconds. Enter a few details, and our tool will generate personalized, engaging subject lines to boost your open rates.
How to use the Subject line generator
Type (or paste) your email into the tool and hit the “Generate a subject line” button. The generator will now generate three different subject lines for you.
Check your results under “Suggested subject lines”
Pick the best subject line and edit it, if necessary (optional)
Push your email to a lemlist campaign (optional)
Frequently Asked Questions
Why use lemlist’s subject line generator?
One word-answer: speed. Why waste hours crafting a subject line when you can generate several instantly?
Just pick the best one, edit a word if needed, and you’re good to go.
What makes a good subject line?
A great subject line is short, personal, engaging, and relevant. Here’s how to craft one:
- Keep it short: 1-8 words work best.
- Personalize it: Go beyond a first name—mention a pain point or competitor.
- Ask a question: Make it relevant, like “Need help with {{painpoint}}?”
- Create urgency: Avoid fake urgency; instead, tailor it to your prospect.
- Audit it: Use tools like this free subject line audit to check length, readability, and scannability.
- Split test it: Send two versions to see what works best.
Testing and tweaking your subject lines will help you get more opens and replies!
Do I need a lemlist account to use the Subject line generator?
The Subject line generator is entirely free to use. You do not need a lemlist account for it.
How many subject lines can I generate at once?
The tool generates three subject lines for your email. It generates a value-orientated, solution-orientated, and problem-oriented subject line for you.
Is there a limit on how often I can use the generator?
You can use the generator three times daily.
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