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Email paragraph length checker: sentences, words and phone-screen lines in every paragraph

In short: Paste the email, set a line width and your own limits, and see every paragraph's sentences, words and wrapped lines, with the long ones flagged. Limit: Lines are a simple wrap, not how any one app or font shows the email.

Paste the email with a blank line between paragraphs. Every paragraph is listed with its sentences, words and how many lines it takes when words wrap at the width you set, such as 40 characters to picture a phone. Paragraphs over your sentence or line limit are flagged. All limits are yours.

Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. Check your list free nowSee pricing

Your text stays in this browser tab; nothing is sent anywhere.

Narrow it to picture a phone.

Paragraphs
4
Flagged
1
Longest, in lines
7
One-sentence paragraphs
1
  • Hi Ava,

    Sentences
    0
    Words
    2
    Lines at 40
    1
    Flags
    –
  • I saw that Acme opened a second warehouse in Leeds. Congratulations on that. I know a second site means more shipping updates to write, which can take a lot of time when two teams each send their own versions. We built delivery emails that run from one inbox.

    Sentences
    4
    Words
    48
    Lines at 40
    7
    Flags
    4 sentences, over 3; 7 lines at 40 characters, over 4
  • Would a short example help?

    Sentences
    1
    Words
    5
    Lines at 40
    1
    Flags
    –
  • Sam

    Sentences
    0
    Words
    1
    Lines at 40
    1
    Flags
    –

Lines are counted by wrapping words at the width you set; real screens, fonts and apps wrap differently, so treat it as a picture and not a measurement. The limits are yours.

Next step

A short paragraph is still wasted on a bounce.

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Sample result from the Email paragraph length checker
Show the sample result as

Sample result

A 4-paragraph example has one 48-word paragraph with 4 sentences that takes 7 lines at 40 characters.

Paragraphs
4
Longest
7 lines
Line width
40 characters

What this means for you

Short paragraphs read well on a phone, but they do not show which addresses exist; a check does.

Next step:Verify the list
  • Sentences, words and lines
  • Your width and limits
  • Flags say why
  • Nothing rewritten
  • Paragraphs
  • Phone
  • Cold email

By SimpleVerifier Team · Last updated · Runs in your browser; nothing you paste is sent to us

How do I check the paragraph length of my email?

  1. Paste the email text, with a blank line between paragraphs.
  2. Set the characters on one line, to picture the screen, and your limits for sentences and lines.
  3. Read the table. Flagged paragraphs say which limit they passed.
  4. Break the flagged paragraphs in your own words and paste the email in again.

Example

You enter
An email of 4 paragraphs (a greeting, one of 48 words and 4 sentences, a one-line question and a name), with limits of 3 sentences, 4 lines and a line width of 40 characters.
You get
4 paragraphs and 1 flagged: the 48-word one has 4 sentences, over 3, and takes 7 lines at 40 characters, over 4. 1 paragraph is a single sentence.
Limits
Runs in your browser; nothing is uploaded. Lines are a simple wrap at your width, not how any one phone or app shows the email.

How are the lines counted?

The tool wraps the words of each paragraph at the width you set, the way a screen would, and counts the lines. A word longer than the width takes lines of its own. It starts at 40 characters to picture a narrow phone, and you can set 20 to 120.

Real screens, fonts and apps wrap differently, so the number is a picture and not a measurement. Its use is to compare paragraphs with each other: the one that takes seven lines when the rest take two is the one to break.

What are the limits?

They are yours. The boxes start at 3 sentences and 4 lines, which are common choices for cold email, and nothing checks them for you. No mailbox provider publishes a paragraph limit, and the tool gives no score.

A greeting and a sign-off count as paragraphs but never get flagged, as they are short. A paragraph of one sentence is counted in the one-sentence figure, because a run of them can read as a list.

What else is worth checking?

Paragraphs hold sentences, so check those too with the email sentence length checker. For a plain-text version of an HTML email, use HTML to plain text, and for the image to text balance of an HTML email, use the email image to text ratio checker.

For reading grade, links and the other checks on a whole email in one place, see the cold email copy checker.

Who uses this tool, and for what?

Cold emailers
Find the paragraph that is a wall of text on a phone before the sequence starts.
Agencies
Hold every client email to the same sentence and line limits.
Newsletter owners
Break up a long intro that reads well on a laptop and badly on a phone.

What can’t this tool tell you?

  • Lines are a simple wrap, not how any one app or font shows the email.
  • It reads plain text. HTML and images are not looked at.
  • A single sentence of 60 words is one sentence; check sentences separately.
  • It does not judge whether a short paragraph reads well.

Common questions

Why 40 characters?
It is a setting, not a rule. It pictures a narrow phone screen. Change it to match the screen you care about.
Does it show how my email looks?
No. It wraps text in a simple way to compare paragraphs. Send a test to a phone for the real look.
What counts as a paragraph?
A block of text separated from the next by a blank line.
Why is my greeting not flagged?
It is short. A paragraph is flagged only when it passes a limit you set.
Do line breaks inside a paragraph count?
They are treated as spaces, and the text is wrapped at your width.
Is my email uploaded?
No. It is read in your browser and goes nowhere.

Authentication and capacity are half of deliverability.

The other half is who you send to. Every hard bounce counts against the domain and inboxes you are sending from, and nothing in DNS can tell you which addresses on your list are dead.

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