Generate 1–20 custom email subject lines in seconds: enter your audience, newsletter theme, goals, and any past winners, then press “Generate.” Strong subject lines alone sway 47 % of readers to open an email (SuperOffice, 2023). Copy the suggestions and A/B-test the best performers.
Email Subject Line Generator
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How to use the tool
Number of subject lines (1–20) Try: 3 or 12.
Target audience description Try: “Remote-working parents aged 28–40” or “Luxury travellers in Asia-Pacific”.
Newsletter content overview Try: “Monthly cybersecurity threat brief” or “Exclusive gourmet recipes and chef interviews”.
Email campaign goals Try: “Boost webinar sign-ups by 15 %” or “Increase average order value by $10”.
Past successful subject lines (optional, up to 3) Try: “Protect your data before hackers strike”, “Taste the world’s rarest chocolate”, “Your VIP seat is waiting”.
Formatting guidelines (optional) Try: “Limit to 42 characters, no exclamation marks” or “Add 🚀 emoji when promoting new releases”.
Click “Generate” to receive AI-crafted subject lines; copy any line directly into your email platform.
Quick-Facts
47 % of recipients open emails based on the subject line alone (SuperOffice, 2023).
Personalised subject lines raise open rates by 26 % (Campaign Monitor, 2022).
Six-to-ten-word subjects deliver the best engagement (Mailchimp Subject Line Study, 2022).
Avoiding spam-trigger words can improve deliverability by 19 % (Litmus 2021 Email Engagement Report).
FAQ
What does the generator do?
The tool combines AI language models with email performance data to suggest subject lines tailored to your audience and goals, reducing ideation time and boosting open rates (Litmus 2023 Trends Report).
How do personalisation tags such as [First Name] work?
Include the tag in the “Formatting guidelines” field; the generator will embed it where it reads naturally, enabling mail-merge engines to replace it during send-out (HubSpot Knowledgebase, 2023).
How many subject lines should you test per campaign?
Most ESPs allow two–three variants without diluting list size; start with three and promote the winner after 1,000 opens for statistical confidence (Klavyio A/B Guide, 2022).
Can emojis hurt deliverability?
Moderate emoji use has no measurable impact, but stacking multiple emojis can drop opens by 10 % due to spam filtering (SparkPost Inbox Report, 2021).
How do I keep my email out of spam folders?
Stay under 50 characters, avoid all-caps, and exclude words like “FREE” or “URGENT”; these terms trigger filters in 70 % of major ESPs (Cisco Talos Spam Study, 2022).
Is the generator free to use?
The web version processes up to 20 lines per request at no cost; larger batches require a Pro plan stated on the pricing page (Product Site Pricing, 2024).
How do I copy the results?
Click “Copy to Clipboard”; the text is saved to your clipboard instantly and can be pasted into any document (Browser Clipboard API Docs, 2023).
How long are generated lines stored?
Lines remain visible until you refresh the page; no data is saved server-side, aligning with GDPR guidelines (EU GDPR,Article 5).
Important Disclaimer
The calculations, results, and content provided by our tools are not guaranteed to be accurate, complete, or reliable. Users are responsible for verifying and interpreting the results. Our content and tools may contain errors, biases, or inconsistencies. We reserve the right to save inputs and outputs from our tools for the purposes of error debugging, bias identification, and performance improvement. External companies providing AI models used in our tools may also save and process data in accordance with their own policies. By using our tools, you consent to this data collection and processing. We reserve the right to limit the usage of our tools based on current usability factors. By using our tools, you acknowledge that you have read, understood, and agreed to this disclaimer. You accept the inherent risks and limitations associated with the use of our tools and services.
