Free tool
SERP preview tool
Type a title and meta description and see them as Google would show them, on desktop and mobile, with pixel-width warnings before anything truncates. Google cuts snippets by pixels rather than characters, so a title full of wide letters dies sooner than its character count suggests. The preview measures what actually renders.
Title 0 chars, ~0px of 580px
Description 0 chars, ~0px of ~990px
Desktop
yourcompany.com
Your page title appears here
Your meta description appears here. Write it as the answer a searcher wants, because engines quote it.
Mobile
yourcompany.com
Your page title appears here
Your meta description appears here. Write it as the answer a searcher wants, because engines quote it.
Pixels, and the rewrite problem
Google truncates titles at roughly 600 pixels on desktop, and descriptions at about 920 pixels on desktop with less room on mobile. Character limits like 60 and 160 are approximations of those widths; a W is several times wider than an i, so two 58-character titles can render completely differently. This tool measures rendered width, which is the number that decides where the ellipsis lands.
Staying inside the widths also raises the odds Google uses your text at all. Zyppy analyzed over 80,000 title tags and found Google rewrote 61.6 percent of them, with overly long titles rewritten most often. Ahrefs found Google ignores the meta description around 62.9 percent of the time. Tight, honest, query-matched snippets are the ones most likely to survive intact.
How to write into the preview
Front-load the words that match what a buyer would type, and decide deliberately whether your brand name earns its pixels at the front or belongs at the end. Numbers, years and prices tend to survive rewrites well, because they signal a specific promise the page has to keep. Check the mobile preview separately; it wraps differently and cuts description text sooner.
Treat the meta description as a one-sentence pitch for the click, written as a direct answer to the query the page targets. That style pays twice, since answer engines and summarizers sometimes lift the description verbatim as their capsule summary of the page.
Honest limits
The preview approximates Google's current fonts and layout, which change without notice, and real results vary by device, language and the result features sitting around your listing. Google also rewrites at will regardless of length, pulling text from the page when it judges your tag a poor match for the query.
And a snippet only wins the click when the page ranks somewhere clickable. This tool polishes the packaging; the ranking, and whether AI answers mention you at all, are separate battles fought with the content itself.
Frequently asked questions
What are the pixel limits for titles and descriptions?+
Titles truncate near 600 pixels on desktop Google. Descriptions get roughly 920 pixels on desktop and less on mobile, where they wrap over more lines. These are observed values rather than published rules, and Google adjusts them occasionally, which is why this tool warns as you approach the limit instead of at a fixed character count.
Why does Google keep rewriting my titles?+
Rewrites are the norm rather than a punishment. Zyppy's study of 80,000 titles found 61.6 percent rewritten, most often when titles were too long, stuffed with keywords, boilerplate, or a poor match for the query. Staying within the pixel width and describing the page plainly gives your version the best odds of being kept.
Does the meta description affect rankings?+
Google says no, and the evidence backs that up. Its effect is on click-through: it is your pitch in the results page. It also has a second life in AI surfaces, where summarizers sometimes reuse it as the short description of your page, so a vague description wastes two placements at once.
Do AI answer engines care about titles and descriptions?+
They read them like any other page text, and a title that states plainly what the page answers helps retrieval systems match it to questions. The bigger AI question sits past the snippet: whether answers name your brand. Reachroller tracks that across real buyer questions, with a free 3-day trial from $29 a month.
More free tools and reading
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