👤 3,094 total uses◯ Free: 5 uses/day • Resets in 1h 50m
Email & Marketing

Gerador de Assuntos de Email

Crie linhas de assunto de email com alta taxa de conversão, otimizadas para taxas de abertura. Utiliza fórmulas de copywriting comprovadas e insights de testes A/B.

Gerador de Assuntos de Email is a Email & Marketing tool that crie linhas de assunto de email com alta taxa de conversão, otimizadas para taxas de abertura. It's best for produce several A/B-test subject lines for a product-launch announcement email.

Saiba mais

Email Subject Generator turns a short brief about your email's topic, audience, and goal into a set of varied subject-line options designed to lift open rates, drawing on curiosity, urgency, and benefit-led copywriting patterns. It is aimed at email marketers, newsletter writers, and founders who need several angles to A/B test rather than a single guess. You get multiple distinct lines, often with preview-text suggestions you can drop straight into your ESP.

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Your Gerador de Assuntos de Email results will appear here

Expect copy that's ready to send — subject line options, body, CTA, and tone variations.

Como Usar Gerador de Assuntos de Email

  1. Enter product/topic in the main input field. Be as specific as possible for better results.
  2. Configure your preferences: Tone.
  3. Click 'Generate' and wait a few seconds for the AI to process your request.
  4. Review the generated output. Use 'Regenerate' for a different variation or 'Copy' to use the result.
  5. Refine your input or adjust settings and regenerate until you're satisfied with the result.

Casos de Uso

1

Produce several A/B-test subject lines for a product-launch announcement email.

2

Refresh a newsletter's open rate by generating new angles for a recurring edition.

3

Write urgency-driven subject lines for a limited-time sale or webinar reminder.

4

Generate matching subject and preview text for a cold or re-engagement campaign.

5

Quickly create subject variants when an initial send underperformed.

Dicas para Melhores Resultados

  • Be specific in your input — detailed descriptions produce better results.
  • Try generating multiple times with different settings for varied outputs.
  • Review and customize the AI output before using it in production.
  • Include your unique selling points and target audience for more persuasive copy.

Perguntas Frequentes

What do I enter to get good subject lines?

Describe the email's main topic, who it's going to, and the action you want (open, click, reply). Mentioning any offer, deadline, or hook helps the tool tailor the angles.

What styles of subject line does it generate?

It mixes approaches such as curiosity gaps, urgency and scarcity, benefit-driven statements, questions, and personalised angles, so you get a range rather than variations of one idea.

Will these guarantee a higher open rate?

No tool can guarantee opens; results depend on your list, sender reputation, and timing. The value is generating several testable angles quickly so you can A/B test and learn what your audience responds to.

How long should an email subject line be?

Aim for roughly 30-50 characters so it isn't truncated on mobile inboxes. The tool favours concise lines, but always preview how they render in Gmail and Apple Mail.

Does it consider spam-trigger words?

It leans toward natural, benefit-led phrasing rather than spammy ALL-CAPS or excessive punctuation, which helps deliverability. Still, review lines against your ESP's spam checker before sending.

Can it write the preview text too?

Yes. You can ask for matching preview (preheader) text that complements the subject line instead of repeating it, which together improve the open-rate signal in the inbox.

How many subject lines should I A/B test?

Testing two to three strong, genuinely different angles per send is practical. Generate a batch, pick the most distinct contenders, and let your ESP split-test them on a sample.

Is there a usage limit?

Free use covers 5 generations per day with no signup; each run returns multiple lines. Pro at $19/month gives unlimited generations for high-volume campaign work.

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AI Writing

Jasper

AI writing assistant for content creators, marketers, and businesses.

✍️ Prompt Library

Ready-to-use prompts — click "Use This" to auto-fill the tool

Write a cold outreach email to a [role] at a [company type] offering [value proposition]. Keep it under 100 words.

Create 5 subject line variants for a promotional email about [offer]. A/B test friendly.

Write a welcome email for new subscribers to a newsletter about [topic].

Draft a follow-up email 3 days after a sales demo for [product].

Write a re-engagement email for subscribers who haven't opened in 90 days.

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⚡ Pro Prompts

Design a 7-email automated nurture sequence for a…...
Write a full product launch email sequence (pre-launch,…...
Create a high-converting sales page email for a…...
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