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Google Business Post Previewer

Preview Google Business Profile posts including events, offers, and updates. Check image dimensions, text limits, and CTA button formatting.

Tested tool guide Tested browser tools Checked August 16, 2026

What Google Business Post Previewer does, with a checked example

A published Google Business Profile post cannot be edited: the only fix is deleting it and posting again. This tool renders the post as the local feed will show it, so the mistake never ships. You pick the format (update, offer, or event), paste the description, attach an image, and choose a CTA; the previewer draws the card, counts characters against the 1,500-character description cap, checks the image against the recommended 4:3 ratio, and marks where the feed will insert its 'See more' cut. The usual surprise: only about the first 100 characters show without a click, so the price, date, or hook belongs at the top of the text.

Worked example

A concrete input and expected output from the current implementation.

Input

Update post. Description: "Grand opening this Saturday. Visit us at 121 Main Street and enjoy 20% off your first order. Doors open at 10 AM." Image: 1200 x 900. CTA: Learn More, pointing to https://example.com/grand-opening

Expected output

A card preview with a check panel alongside: the image renders at 4:3, the description shows with a 'See more' link inserted after roughly 100 characters, and a blue 'Learn More' button carries the given URL. Checks: 113 of 1,500 characters used - within limit; 1200 x 900 is 4:3 - passes; 'Learn More' is a supported CTA - passes.

The description counts out to exactly 113 characters, every character including spaces and punctuation, far below the 1,500-character cap; 1200 divided by 900 is exactly 4:3, the ratio the tool recommends for post images. The truncation mark is approximate because Google's exact cut point varies by renderer.

How the result is produced

1

Format-specific fields and card layouts

Update, offer, and event posts are different objects with different fields. Events add a name plus start and end date and time; offers add terms and conditions; updates are description plus an optional image and CTA. Switching the format re-draws the card and re-runs every check, because each format has its own layout and its own field rules.

2

Character accounting and truncation

The tool counts the description the way Google counts it: every character, including spaces and punctuation, against the 1,500-character limit. Text at or over the cap is flagged instead of silently clipped, because Google rejects over-limit posts at publish time. The preview also marks the feed's truncation point, around the first 100 characters, so you can see which sentence the 'See more' link will interrupt.

Good uses

  • Drafting an event or offer announcement and wanting to see the actual card before it appears in Google Search and Maps.
  • Checking how much of a description survives the feed truncation, so the price, date, or call to action lands inside the visible first 100 characters.
  • Confirming an image is 4:3 and the CTA label renders as expected before posting, since a live post can only be deleted and reposted, never corrected.

Limits and checks

  • The preview is a faithful approximation, not Google's renderer: exact spacing, the precise truncation point, and label styling vary a little between Search, Maps, and mobile, so treat pixel-level details as indicative rather than exact.
  • The limits the tool enforces are those Google documents at build time, and Google has retired formats before (product posts lost their tab in the UI in 2021). Before planning around a specific number, re-check the current caps in Google's documentation.
  • The preview validates the post, not its destination: a CTA pointed at a broken or wrong landing page still passes every check, and so does a mistyped phone number. The tool cannot verify what the link or call leads to.

Common questions

Can I edit a post after it is published?

No. Google Business Profile does not allow editing a live post; the only remedy is deleting it and publishing again from scratch, which also discards any engagement it accumulated. That is the core reason to preview first: the preview is the last chance to catch a typo, a wrong date, or a broken CTA before it goes live.

What size image should I use?

The standard recommendation for post images is 1200 x 900 pixels, a 4:3 ratio, and the previewer flags images that are not 4:3 or are too small to display well. The displayed crop is 4:3, so compose the image knowing the sides may be trimmed; a square or tall image will lose content to the crop.

References and verification

The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.

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