Free Founder Tool

Pitch Email Subject Line Generator

Craft investor-grade subjects in seconds — boost opens without sounding spammy.

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4.9/5 based on 155 founder reviews

Subject lines drive investor open rates. Enter a few signals — traction, logos, geography — and we’ll spin up variants tuned for metrics, social proof, problem framing, and curiosity. Each line gets a quick deliverability grade so you can A/B test with confidence.

Pitch subject generator hero

Keep subjects specific, credible, and under 55 characters. Avoid ALL CAPS, repeated punctuation, and tired phrases.

Your subject lines will appear here

Fill the essentials on the left and hit “Generate Subjects” to spin up 10–15 investor-ready lines.

Need a shareable list? Generate subjects and export in one click.

Pitch subject FAQ

Subject lines set the tone for your outreach. Here’s how to balance specificity, curiosity, and deliverability.

What’s the best length for investor subject lines?

Aim for 41–55 characters so it fits mobile inbox previews without truncation.

Should I use emojis?

Use sparingly. The generator defaults to no emoji but you can allow minimal usage if it fits your brand.

Can I personalize for a specific partner or portfolio company?

Yes. Add the firm, partner, or portfolio tie-in and the generator will weave it into relevant variants.

How do you check deliverability?

We look at length, caps, punctuation, and spammy words to grade each subject so you can avoid hard bounces.

Do you store my inputs?

No. Everything stays in your browser via local storage so you can reuse or reset anytime.