✍️ Ad Copy Character Counter

Why character limits still trip up experienced marketers

Every ad platform enforces different, and sometimes counterintuitive, character limits per field — Google Search headlines cap at 30 characters while a LinkedIn ad intro allows 600, and copy that gets truncated mid-sentence in the platform's preview can undercut an otherwise strong ad. Counting characters by hand in a text editor is slow and error-prone, especially when writing multiple headline and description variations for responsive ad formats.

This tool tracks character count in real time against the actual limits for six major platforms, with a visual warning the moment you go over, so you can catch truncation issues before you paste copy into the ad platform itself.

How to use this counter

  1. Select the platform you're writing for — Google Search, Meta/Facebook, LinkedIn, Twitter/X, Display/Banner, or YouTube.
  2. Type or paste your copy into each field. The character count and progress bar update as you type.
  3. Watch for the color change — green is safe, amber means you're approaching the limit, and red means you're over and the platform will likely truncate or reject the field.
  4. Switch platforms at any time to check the same copy idea against a different set of limits.

Frequently asked questions

Do these limits count spaces and punctuation?

Yes — platform character limits count every character including spaces, punctuation, and emoji, which is exactly what this counter measures as you type.

Why does Google Search allow multiple headlines?

Responsive search ads let you submit multiple headline and description variations, and Google's system automatically tests combinations to find what performs best — this tool lets you check each variation against its own 30 or 90 character limit.

Does going slightly over the limit get my ad rejected?

Behavior varies by platform — some hard-cap the input field so you simply can't type more, while others (especially when pasting text) will silently truncate the copy at the limit, which can cut off a call-to-action or key detail.

Are these limits guaranteed to stay the same?

Platforms do update character limits periodically as ad formats evolve, so treat this tool as reflecting current, commonly published limits and double-check inside the ad platform itself if a campaign is mission-critical.