Email sentence length checker: the word count of every sentence, with long ones and split points marked
In short: Paste the email, set your own limit, and get every sentence with its word count, the average and longest, and the place each long sentence can break. Limit: It counts words as written. It does not judge whether a short sentence is clear.
Paste the email text and every sentence is listed with its word count. Sentences longer than the limit you set are marked, and for each one the tool shows where a joining word such as and, but or because could start a new sentence. Greetings and sign-offs are left out, and nothing is rewritten.
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.
Your own limit. Short sentences are common plain-writing advice, not a filter rule.
- Sentences
- 3
- Average words
- 17
- Longest
- 37 words
- Over 20 words
- 1
I saw that Acme opened a second warehouse in Leeds, and because a second site usually means the shipping update emails need to be rewritten for two teams, I wanted to ask how you send them today.
- Words
- 37
- Where to split
- Before: and
We build delivery emails that run from one inbox.
- Words
- 9
- Where to split
- –
Would a short example help?
- Words
- 5
- Where to split
- –
| Sentence | Words | Where to split |
|---|---|---|
| I saw that Acme opened a second warehouse in Leeds, and because a second site usually means the shipping update emails need to be rewritten for two teams, I wanted to ask how you send them today. | 37 | Before: and |
| We build delivery emails that run from one inbox. | 9 | |
| Would a short example help? | 5 |
Greetings and sign-offs with no end mark are left out. A split point is where a joining word such as and, but or because starts a new part; the tool does not rewrite anything.
Next step
Short sentences do not help if the address bounces.
Copy that reads well still fails on a dead address. Check the list before the first step goes out.
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Sample result
A 3-sentence example email averages 17 words a sentence; one runs to 37 words and can be split before and.
- Sentences
- 3
- Average
- 17 words
- Longest
- 37 words
What this means for you
Short sentences read well, but they do not show which addresses exist; a check does.
- Every sentence counted
- Your own limit
- Where to split
- Nothing rewritten
- Sentences
- Words
- Cold email
By SimpleVerifier Team · Last updated · Runs in your browser; nothing you paste is sent to us
How do I find the sentences in my email that are too long?
- Paste the email text. A blank line or a line break ends a sentence as well as a full stop.
- Set the limit in words. The box starts at 20; change it to the length you want to hold yourself to.
- Read the list. Marked sentences show where a joining word could start a new sentence.
- Split the marked sentences in your own words and paste the email in again to check.
Example
- You enter
- A short email to Ava with a greeting, three sentences (one of 37 words that joins two ideas with and, one of 9 words and a question of 5 words) and a name at the end, with the limit left at 20 words.
- You get
- 3 sentences, an average of 17 words, longest 37 and shortest 5. 1 sentence is over 20 words, the 37-word one, and it can be split before and.
- Limits
- Runs in your browser; nothing is uploaded. It counts words and points to places to split; it does not rewrite, and the limit is your own choice.
What counts as a sentence here?
A sentence ends at a full stop, question mark or exclamation mark followed by a space, or at a line break. Short forms such as Mr., Dr., e.g. and a single letter followed by a full stop do not end one. A short line with no end mark, such as Hi Ava, or a name under the email, is treated as a greeting or sign-off and left out of the counts.
Words are runs of letters and digits, with apostrophes and hyphens kept inside a word, so don't and follow-up are one word each.
Why check sentence length at all?
Long sentences make a reader hold the start of the thought while they read the end. In a cold email read on a phone, between other messages, that cost is paid by someone who owes you nothing. Plain-writing guides in many fields advise short sentences for that reason.
No mailbox provider publishes a sentence length limit, and this tool does not give a score. The limit is yours: use it to find the sentences you would want to cut when reading your own email aloud. For length, reading grade and links across the whole email, see the cold email copy checker.
How are the split points found?
For each sentence over your limit the tool looks for the joining words and, but, so, because, which, while, although, then, however, also and plus, and for semicolons. A point is shown only when at least four words stand on each side, so a split would leave two real sentences.
It is a rule on the words as written. It does not understand the sentence, so some points will not read well after a split. Pick the ones that do, or cut a clause instead.
Who uses this tool, and for what?
- Cold emailers
- Cut the one 40-word sentence in step 1 before it goes into the sequence.
- Agencies
- Hold every client's copy to the same sentence limit before a campaign starts.
- Founders
- Check a first outreach email written in one burst, line by line.
What can’t this tool tell you?
- It counts words as written. It does not judge whether a short sentence is clear.
- Abbreviations outside a short built-in list may end a sentence early.
- The joining word list is English only.
- Subject lines, lists and tables are read like any other text.
Common questions
- What limit should I use?
- Whatever you want to hold yourself to. The box starts at 20 words, a common plain-writing guideline, and you can set it from 5 to 80.
- Does it rewrite my sentences?
- No. It counts and points to places to split. You make the edit.
- Why was my greeting not counted?
- A short line with no end mark, such as Hi Ava, or a name, is treated as a greeting or sign-off and left out.
- Does a comma list count as one sentence?
- Yes. A sentence runs to the next full stop, question mark, exclamation mark or line break.
- Does a filter care about sentence length?
- No mailbox provider publishes such a rule. The limit is a writing choice.
- 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.
- Bulk verification with real SMTP mailbox checks
- Hard bounces removed before a send, not discovered after
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