Most checkers only count characters. This one measures what actually gets rendered.
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Real canvas font measurement
Uses your browser's text-measurement API with Arial, the same font family Google renders search snippets in — not a generic character-count guess.
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Live desktop + mobile preview
See both renderings side by side, since mobile and desktop use different limits and most traffic is mobile.
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Word-boundary truncation preview
Shows exactly where the ellipsis would land, cutting at a word boundary rather than mid-word.
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Safe / caution / truncated zones
A traffic-light meter for each field, with a caution buffer before the hard limit so you have room to adjust.
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Character count alongside pixel width
Both numbers shown together, so you can see exactly how far character count diverges from real rendered width.
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100% client-side
Everything is measured and rendered locally in your browser. Nothing is uploaded.
Why does pixel width matter more than character count?▾
Google truncates titles and descriptions based on how much horizontal space they take up when rendered, not how many characters they contain. A title full of narrow letters like i and l can be much longer than one full of wide letters like W and M while taking up the same visual space, so a character-count limit is only a rough proxy for the real constraint.
What pixel limits does this tool use?▾
Approximately 600px for desktop titles, 920px for desktop meta descriptions, and roughly 680px for both title and description on mobile. These are widely-cited industry approximations based on observed rendering, not an official specification Google publishes — Google has said repeatedly that there's no fixed maximum length.
Does this tool use real font measurement or an estimate?▾
It measures the actual rendered width using your browser's canvas text-measurement API with the same Arial font Google uses for search snippets, rather than a character-count approximation or a generic average-width table.
Why might my title still get rewritten by Google even if it fits?▾
Fitting within the pixel width only prevents truncation. Google separately decides whether to display your title and description as written or generate its own version based on the search query, and does this for a large share of results regardless of length.
Should I optimize for desktop or mobile limits?▾
Mobile generally, since it accounts for the majority of search traffic on most sites. Writing to the tighter of the two limits and confirming both previews look acceptable is the safest approach.