UtilibyWritten by the Utiliby editorial team · Last updated October 15, 2026 · Rules and formulas reviewed October 2026
What this free online headline analyzer does
Eight out of ten people read a headline, but only about two out of ten read the rest. The same is true of email: the subject line decides whether your message is opened at all. This free online headline analyzer and email subject line tester scores your text from 0 to 100, shows exactly which parts are strong or weak, and gives specific tips to improve it.
It checks length, word count, power words, emotional words, numbers, structure (questions, how-to and lists), readability and spam signals. A word balance chart shows the mix of common, uncommon, emotional and power words. Previews show how your headline looks in Google, in a phone and desktop inbox and on a social card, and you can compare up to 15 headlines at once.
How to use the analyzer to write better headlines
- Choose the type. Article headline, email subject line or ad headline each have different length targets.
- Write several versions. Put one per line. Aim for at least five.
- Read the score and checks. Fix the lowest scores first.
- Open Previews. Check where the text is cut off on phones and in search results.
- Compare. The ranking shows the strongest candidates.
- Test the finalists. Send two versions to a small share of your list or run them as an A/B test.
What the checks mean
| Check | Why it matters | What to aim for |
|---|---|---|
| Length | Search results and inboxes cut off long text | Articles 50 to 70 characters, emails 30 to 50 |
| Word count | Short headlines are scanned faster | 6 to 12 words, emails 4 to 9 |
| Power words | Create curiosity and promise value | One or two |
| Emotion | Feelings drive clicks | At least one emotional word |
| Number | Makes the promise specific | A digit, ideally at the start |
| Structure | Proven patterns attract attention | Question, how-to, why or list |
| Speaks to the reader | You and your make it personal | Use you or your |
| Readability | Easy words reach more people | Grade 8 or lower |
| Clean style | Spam signals reduce trust and delivery | No ALL CAPS, one exclamation mark at most |
Headline formulas that work
- Number plus benefit. 7 Ways to Cut Your Ad Costs This Month.
- How to. How to Write Subject Lines Your Readers Open.
- Question. Is Your Landing Page Losing Half Its Visitors?
- Mistake. The 5 Mistakes That Quietly Kill Your Open Rate.
- Time-bound result. Double Your Sign-Ups in 30 Days.
- Plain promise. The Simple Guide to Email Marketing.
- Curiosity with proof. What 10,000 Subject Lines Taught Us.
Whatever the formula, be specific, be honest and deliver what the headline promises. Misleading headlines may win a click but lose trust, and search engines and email providers notice when readers leave quickly.
Email subject lines: opens, previews and spam filters
An email subject line has three jobs: get the email seen, get it opened and keep it out of the spam folder. Write for the phone first, because most people read email there and see about 35 to 40 characters. Put the most important words first, add a number or a clear benefit, and use the preview text to continue the thought. Avoid ALL CAPS, strings of exclamation marks, money symbols and phrases that spam filters have learnt to distrust. Do not fake a reply or forward with Re: or Fwd:. Honest subject lines are also a legal matter in many countries: laws such as CAN-SPAM require them not to be deceptive. Build matching sign-offs with the Email Signature Generator and test your finalists with the A/B Test Calculator.
Writing headlines that rank and get clicked
For web pages the headline is usually the title that appears in search results, so it must work for people and for search. Put the main keyword near the front, keep the title under about 60 characters, and promise something the page delivers. Pair the title with a meta description and social tags using the Meta Tag Generator and the Open Graph Generator. For video and social posts, see the YouTube Title Generator and the Instagram Caption Generator. Short ad copy has strict limits, so check it with the Google Ads Character Counter.
Common headline mistakes
- Vague promises. Marketing Tips tells the reader nothing. Say what they get.
- Clickbait. Overpromising wins one click and loses a reader.
- Too long. Text that is cut off in search results or inboxes loses its ending.
- Jargon. Words your reader does not use are not read.
- Too many tricks. A number, a power word, a question and an exclamation all at once reads as spam.
- Ignoring the audience. A headline for experts should not read like one for beginners.
Before and after: improving real-style headlines
| Before | After | What changed |
|---|---|---|
| Email Tips | 7 Email Tips That Raise Open Rates This Month | Added a number, a benefit and a time frame |
| Our Spring Sale Is Here!!! | Your Spring Sale: 20% Off Ends Sunday | Removed shouting, added the offer and a deadline, and spoke to the reader |
| Newsletter June | The Three Mistakes Costing You Customers | Replaced a label with a curiosity hook |
| A Comprehensive Guide to the Fundamentals of Search Engine Optimisation for Beginners | SEO for Beginners: A Simple 10-Step Guide | Cut the length, used simpler words and added a number |
Paste the two versions of each pair into the tool, one per line, and compare the scores. The improvements are not magic: each one follows the checks above, which is why the score moves.
A simple plan for testing subject lines
Write at least five subject lines and score them. Keep the top two or three, and make sure they really differ in approach, for example a benefit against a question, rather than in one word. Send each to a random share of your list, such as ten percent each, wait long enough for most opens to arrive, usually a day, then send the winner to the rest. Judge on clicks and sales as well as opens, because opens can be inflated by privacy features in some email apps. Use the A/B Test Calculator to check whether the difference is real, and keep a record of what you learn. Over a few months you will see which patterns suit your audience, and you can build a short style guide for your own subject lines. For a business newsletter, also set up a clean sign-off with the Email Signature Generator.
Accuracy, limits and responsible use
The analyzer uses fixed word lists, simple counting rules and a standard readability formula, so it cannot understand meaning, humour, local slang or your brand voice, and it will sometimes rate a clever headline low or a bland one high. Syllable counts are estimates. The score is a guide to common good practice, and the only real test of a headline is how your own audience responds. This free online headline analyzer is for lawful, honest use only.
Frequently asked questions
How do I use this free headline analyzer?
Type or paste a headline or email subject line, pick the type, and read the score, the checks and the tips. Add one headline per line to compare up to 15 and see them ranked.
How is the headline score calculated?
The score out of 100 adds points for length, word count, power words, emotion, numbers, structure, speaking to the reader and readability, and takes off points for spam signals such as ALL CAPS and many exclamation marks.
What is a good headline score?
70 and above is strong, 45 to 69 is fair and below 45 needs work. Scores are a guide to good habits, so use them to improve drafts and then test the real thing.
How long should a headline be?
For articles, about 50 to 70 characters, or 6 to 12 words, so that the title is not cut off in Google results. The tool changes the targets for emails and ads.
How long should an email subject line be?
Around 30 to 50 characters. Many phones show only the first 35 to 40 characters, so put the key words at the start.
What are power words?
Power words are strong, specific words that promise a result or create curiosity, such as proven, secret, essential or simple. Use one or two. Too many sound like hype.
Do numbers in headlines help?
Often. Numbers make a promise concrete and suggest a quick read, as in 7 ways or 30 days. Odd numbers and specific figures tend to be more believable than round ones.
What are spam trigger words in subject lines?
Phrases such as free money, act now, click here, urgent and winner, plus ALL CAPS and many exclamation marks, can push an email towards spam folders. The tool flags common ones.
What is the word balance chart?
It shows the share of common, uncommon, emotional and power words in your headline. Good headlines are mostly common words so that they are easy to read, with a few emotional or power words.
What does the reading grade mean?
It estimates the US school grade needed to read the text, from the length of the words. A grade of 8 or lower suits most audiences.
What are the previews for?
They show how your text may look as a Google search result, in a phone inbox and desktop inbox, and on a social share card, including where long text is cut off.
Does a higher score guarantee more clicks?
No. The score reflects good practice, not what your audience will click. Test two or three versions in your real channel and compare the results with the A/B Test Calculator.
Can I analyze ad headlines?
Yes. Choose Ad or social headline for shorter length targets, and use the Google Ads Character Counter for exact limits.
Which language does it support?
The word lists and readability rules are for English. Length and spam checks still work for other languages that use Latin letters.
Can I compare several headlines?
Yes. Put each headline on its own line and open Compare all to see them ranked by score, with a Details button for each one.
Is my text stored or sent anywhere?
No. The analysis runs in your browser and nothing is uploaded.
Can I print or export the results?
Yes. Copy the analysis, download all scores as CSV or print or save a one-page report. Only the report is printed, not the whole page.
Sources and further reading
- Nielsen Norman Group, Writing headlines for the web.
- Google Search Central, Influencing your title links in search results.
- U.S. Federal Trade Commission, CAN-SPAM Act: A compliance guide for business.
- Wikipedia, Flesch-Kincaid readability tests.
- Mailchimp, Best practices for email subject lines.
- Moz, Title tag guide.
Sources were consulted in October 2026. Standards and rules can change, so always check the official page for your situation.