How long should a newsletter subject line be?

Aim for under 50 characters. Most inboxes cut subject lines at 40 to 60 characters, and phones show fewer, so the generator flags anything longer. Put the most interesting words first.

What is preview text?

The short line many inboxes show after the subject, sometimes called the preheader. Around 40 to 90 characters works well. If you don't set it, the inbox shows the first words of your email instead, which is often 'View in browser'. The HTML version includes your preview text as a hidden preheader.

Can I paste the HTML into my email platform?

Yes. The HTML uses a single 600px table and inline styles, which most email platforms and clients support. Paste it into your platform's HTML or code block, then send yourself a test. If your platform has its own editor, the plain text or Markdown version may be easier to paste.

Which format should I choose?

A weekly roundup suits regular newsletters with several short items. A single-topic essay works for opinion and teaching. Product updates and announcements are for customers. Curated links suit newsletters that recommend other people's work.

Is this an AI newsletter writer?

No. It arranges what you type into a newsletter layout using tested phrasing for each tone and format. Your items stay your own words. It's free, and nothing you enter leaves your browser.

It's optional, but many readers skim to the end, so a P.S. gets read more than you'd expect. Use it to point to your best item or ask for a reply. Edit or delete it if it doesn't fit.

Newsletter Generator

Turn your topic and a few items into a complete email newsletter: five subject lines, preview text, an intro, sections, a call to action, a P.S. and a sign-off. Copy it as plain text, Markdown or email-ready HTML.

100% free
No sign-up
Runs in your browser

Newsletter name

Audience

Who reads it, in the plural, e.g. small business owners.

Topic of this issue

Main items (2 to 5)

Item 1

Item 2

Item 3

A title and one line for each. Links are optional.

Format

Tone

Call to action

Sign-off name

Pick a subject line, then copy the version you need.

Subject lines

Instagram DM automation: this week's notes
42 characters
Your Instagram DM automation roundup
36 characters
Comment-to-DM funnels that work, plus two more
46 characters
The Growth Memo: Comment-to-DM funnels that work
48 characters
3 things on Instagram DM automation this week
45 characters

Preview text

This week's notes on Instagram DM automation, in a few minutes of reading.
74 characters
3 quick reads on Instagram DM automation, starting with Comment-to-DM funnels that work.
88 characters
Inside: Comment-to-DM funnels that work, Three DM openers you can copy and two more things worth your time.
107 characters, aim for about 90
Comment-to-DM funnels that work, Three DM openers you can copy and more for small business owners this week.
108 characters, aim for about 90

Instagram DM automation: this week's notes
This week's notes on Instagram DM automation, in a few minutes of reading.

Hi everyone,

Hope you're having a good week. This week is all about Instagram DM automation, with 3 things worth your time.

Comment-to-DM funnels that work

Ask followers to comment a keyword, then send the link by DM automatically.

Three DM openers you can copy

Short first messages that get replies without sounding robotic.

Why reply speed matters

People who get a fast answer are far more likely to buy.

Hit reply and tell me what you think about Instagram DM automation. I read every response.

Until next time, Sam The Growth Memo

P.S. If you only have a minute, start with "Why reply speed matters".

What a good newsletter issue includes

A clear subject line under 50 characters that tells readers what's inside.
Preview text that adds to the subject instead of repeating it.
A short intro of one or two sentences, then straight into the content.
Scannable sections with a heading and a line or two each, and a link if there's more to read.
One call to action, such as a reply, a link or a booking. One clear ask gets more clicks than several competing ones.

Before you send

Replace any wording that doesn't sound like you, add your platform's first-name tag to the greeting if you use one, and send a test to yourself on desktop and mobile. Your platform adds the unsubscribe link and your postal address, which anti-spam laws require.

How it works

How to use it

Step 1
Describe this issue
Add your newsletter's name, who it's for and the topic of this issue, then list two to five items with a title and one line each.
Step 2
Choose a format, tone and call to action
Pick a weekly roundup, essay, product update, curated links or announcement, a tone of voice, and what you want readers to do next.
Step 3
Pick a subject and copy
Choose from five subject lines and three preview texts, then copy the issue as plain text, Markdown or email-ready HTML, or download it.

FAQs

Frequently asked questions

Answers to common questions about the Newsletter Generator.

: Aim for under 50 characters. Most inboxes cut subject lines at 40 to 60 characters, and phones show fewer, so the generator flags anything longer. Put the most interesting words first.
: The short line many inboxes show after the subject, sometimes called the preheader. Around 40 to 90 characters works well. If you don't set it, the inbox shows the first words of your email instead, which is often 'View in browser'. The HTML version includes your preview text as a hidden preheader.
: Yes. The HTML uses a single 600px table and inline styles, which most email platforms and clients support. Paste it into your platform's HTML or code block, then send yourself a test. If your platform has its own editor, the plain text or Markdown version may be easier to paste.
: A weekly roundup suits regular newsletters with several short items. A single-topic essay works for opinion and teaching. Product updates and announcements are for customers. Curated links suit newsletters that recommend other people's work.
: No. It arranges what you type into a newsletter layout using tested phrasing for each tone and format. Your items stay your own words. It's free, and nothing you enter leaves your browser.
: It's optional, but many readers skim to the end, so a P.S. gets read more than you'd expect. Use it to point to your best item or ask for a reply. Edit or delete it if it doesn't fit.

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