Facebook / Meta Ad Copy Builder

Write primary text, headline, and CTA for a Meta ad campaign

Builds complete Facebook ad copy with three primary-text angles, a headline, a link description, and a CTA button, all formatted to Meta's field limits so you can launch and A/B test in minutes. It runs free in your browser on Gera Tools, with nothing uploaded.

Last updated Source: Gera Tools

What are Meta's ad copy character limits?

Meta recommends primary text under about 125 characters before truncation, headlines under 40 characters, and link descriptions under 30 characters. This builder shows live counts for the headline and description so you stay within them.

Three ad angles from one set of inputs

A Meta ad needs primary text, a headline, a link description, and a CTA button — and the campaigns that win are the ones that test multiple angles. This builder takes your product, audience, benefit, and offer and produces all four fields plus three distinct primary-text variants ready for an A/B test.

How it works

The tool generates three primary-text variants using proven direct-response angles:

  1. Problem-solution: opens by naming a pain point the audience recognises, then positions the product as the fix. This angle works best when the audience is actively experiencing the problem.
  2. Benefit-led: states the positive outcome first, before naming the product. Works well in top-of-funnel placements where the audience does not yet know they have the problem.
  3. Social-proof / urgency: leads with credibility (implied scale, results, or time-sensitivity) and includes a reason to act now. Best paired with retargeting audiences who have already seen the product.

Your stated benefit is capitalised and trimmed to Meta’s 40-character headline limit, and your offer (or a fallback) is trimmed to the 30-character link-description limit, both shown with live character counters. The CTA dropdown maps directly to Meta’s real button set.

Meta ad field character limits

FieldRecommended lengthHard display cut
Primary textUnder 125 characters (before “See more” truncation)~280 characters
Headline40 characters~40–60 characters
Link description30 characters~30–60 characters

Primary text beyond about 125 characters is collapsed behind a “See more” link in most placements. The most important message should land in the first two lines.

What makes strong primary text for Facebook

Facebook users are not in a search mindset — they are scrolling past content from friends and family. The first sentence of your primary text must earn a stop. Two structures that consistently work:

  • Question that calls out the audience: “Tired of [problem]?” stops exactly the people who are.
  • Bold outcome statement: “We helped 3,000 small businesses cut their payroll time in half.” (Use real numbers you can back up; do not invent figures.)

Avoid starting with your brand name or product — lead with the audience’s world, not yours.

Testing and iteration

Run all three angles as separate ads within one ad set. Meta’s delivery algorithm allocates more budget to the better-performing variant. After a few days and enough impressions (typically 1,000+), pause the weakest variant and refine the winner — changing one element at a time (headline, opening line, CTA) to find the ceiling for that audience.

Tips and notes

  • Phrase the benefit as the reader’s outcome — “save 10 hours a week” beats “time-saving software.”
  • Keep your audience specific (“busy parents,” “B2B founders”); generic inputs produce generic copy.
  • Always sanity-check the auto-trimmed headline — a hard cut at 40 characters can read awkwardly, so reword if needed.