The tool
What the ChatGPT meta description generator does
Describe the page in the box above and press Generate. You get a meta description back on its own, with no preamble, no commentary and no code fence, ready to paste into your template.
One thing to be clear about before you start, because it is the commonest mistake on tools like this. The input is a brief, not a URL. Nothing here fetches your page, reads your existing tags or crawls anything. If you paste a link, you will get a description of a link. Paste what the page actually says: what it is, who it is for, and the one thing that makes it different from the other nine results.
It is free, it allows five generations per rolling 24 hours, and the brief can be anything from 1 to 12,000 characters. Your text is sent to our AI server to run it.
The constraint
How long a meta description should be
The usual advice is 155 to 160 characters, and it is roughly right and slightly misleading. Google does not count characters, it fills a space, so what actually matters is how wide your letters are. One published guide puts it well: a description heavy in wide letters gets cut at 140 characters, while one written with narrow letters can survive past 165.
The width figures published for desktop do not agree with each other. Two 2026 guides give about 920 pixels and about 990 pixels for the same slot, and neither publishes how it measured. Treat the desktop slot as roughly 920 to 990 pixels and stop optimising the last five characters, because nobody outside Google knows where the line falls to that precision.
Mobile is the real constraint and is where most people forget to look: roughly 680 pixels, which works out around 120 characters. That is the number to write to if your traffic is mostly phones, and it is the argument for putting the important half first.
Procedure
How to generate a meta description in three steps
Three steps, and the third one is not optional on this route.
- Step 1
- Write the brief. What the page is, who it is for, the keyword it targets, and the specific thing it offers that a competitor's page does not. A vague brief produces a vague description, and vague is one of the things Google rewrites.
- Step 2
- Add an instruction if you want to constrain the output. Up to 300 characters: ask for under 150 characters, ask for three variants, ask for the keyword in the first clause. Then press Generate.
- Step 3
- Count the result yourself. The character counter on the panel is measuring your brief, not the description that came back, so paste the output somewhere that counts it before you ship it.
The uncomfortable fact
Google rewrites most meta descriptions
This is the thing most pages about meta descriptions leave until the end, if they mention it at all. Google frequently ignores what you wrote and assembles its own snippet from the page instead.
The published figures are large and reasonably consistent. One analysis of page-one results reported rewrites in 71 percent of mobile results and 68 percent on desktop. Another reported roughly 62 percent. Those are third-party studies rather than measurements of ours, and we cannot verify their method, but the direction is not in dispute across any source we read.
So write your description as a candidate rather than as a guarantee. It is the version Google gets to use when it decides yours is the best answer to the query, and the fact that it often does not is a reason to make it specific rather than a reason to skip it.
Why it gets replaced
Why Google rewrites a meta description
The guides that looked at this name three triggers, and all three are things a hastily generated description walks straight into.
- It does not match the query
- Your page may rank for something you did not write the description around. One guide's test is worth borrowing: read your target keyword, then read your description, and if a stranger could not tell they belonged together, Google will write its own.
- It is too generic
- A description that would fit any page on the topic gives Google no reason to prefer it over a sentence lifted from your body copy. This is the failure mode a thin brief produces.
- It is keyword-stuffed
- Repeating the term does not increase the odds of it being used. It decreases them, and it reads badly to the human who is deciding whether to click.
Honest limit
Counting the meta description is your job, not the tool's
The counter above the box counts what you type in. It does not count what comes back, because it is wired to the input field. There is no SERP preview on this page and no pixel measurement, and it would be easy to leave that unsaid on a page about length.
So do it yourself, and it takes a moment. Paste the generated description into any character counter, check it against roughly 155 characters for desktop and roughly 120 for mobile, and read the first 120 characters on their own to see what a phone will show.
If it is too long, that is a job for the instruction field rather than for another full run. Say under 140 characters next time and you will usually get it in one.
Straight answer
Does a meta description help you rank?
No, and the guides are unusually united on this. Length is not a ranking factor and neither is the description itself. Its entire job is the click: the reader is scanning ten blue links and yours has one line to explain why it answers their question.
That reframing is useful because it changes what a good description looks like. You are not feeding a classifier, you are writing an advert that has to be true. Specificity beats keyword density every time, both with the reader and, on the evidence above, with the system deciding whether to use your text at all.
We make no claim about rankings, click-through rate or what any search engine will do with the output. We generate a candidate from your brief. Everything after that belongs to systems neither of us controls.
In practice
Who uses a ChatGPT meta description generator, and when
People filling in the last empty field before a page ships, where the copy is written, the deadline is now, and the description is the thing nobody wanted to write.
Anyone rewriting a description that Google has been ignoring. If your page ranks for a query your description does not mention, that is the single most fixable version of this problem.
Writers who want options rather than an answer. Ask for three variants in the instruction field, then pick, because choosing between three concrete descriptions is much easier than writing one from nothing.