Ad research and the Meta Ad Library
Ad research on Meta starts with the Meta Ad Library, the public archive Meta keeps of every active ad on its apps. It shows the creative, the Page and the start date of any running ad. Spend, reach and targeting appear only for political and issue ads and for ads shown in the EU or UK.
This topic explains what the library can and cannot tell you about a competitor, and what copyright, trade mark law and Meta's own rules let you do with what you find. The search steps live in the Meta Ad Library guide.
Start here
What is the Meta Ad Library?
A free, searchable record of the ads running across Meta's apps, built for transparency, with far more detail for some ads than for others.
6 min read
Can you copy a competitor's ad?
Copying a competitor's photos or words infringes their rights. Reusing the idea behind the ad usually does not. Here is where the law and Meta draw the line.
7 min read
Key terms
Common questions
- What is a winning ad?
- A winning ad is one that keeps running profitably while the advertiser switches off the rest. The Meta Ad Library shows when each active ad started, so a long run is the usual public sign of a winner. Meta does not publish results for ordinary ads, which makes that sign an inference rather than proof.
- What is a swipe file in advertising?
- A swipe file is a saved collection of ads, headlines and hooks that a marketer studies before making new ads. For Meta ads it usually holds screenshots from the Ad Library with notes on the hook, format and offer. It is a reference for ideas and structure, not a store of assets to reuse.
- Can you see who a Facebook ad is targeting?
- Only for some ads. For ads shown in the EU or UK, the Meta Ad Library shows the age, gender and location targeting the advertiser chose. For political and issue ads it summarises targeting at Page level. Ordinary ads that run elsewhere show no targeting at all.
- Is it legal to research competitors in the Meta Ad Library?
- Yes. Meta built the library for public viewing, and anyone can search it. Downloading search results needs a Facebook login and acceptance of Meta's terms. Reusing what you find is a separate question, which copyright, trade mark law and Meta's intellectual property rules decide.
Put it to work
How to use the Meta Ad Library to find winning ads
See any brand's live Facebook and Instagram ads, free, and spot the winners.
Winning Meta ads: what they are, where to find them and how to make your own
What a winning ad is, where to find winning Meta ads, and how to remake one.
Facebook ad examples: 12 static ad formats that keep winning
Twelve static ad formats, what makes each one work, and when to run it.
The six types of static ads every ecommerce brand should be running
Hero, offer, trust, features, transformation, lifestyle: what each does and when to run it.
Other topics
Meta ad delivery
How Andromeda, ranking models and the ad auction decide which ad wins each impression.
Campaign structure
How campaigns, ad sets and Advantage+ automation fit together, and how the learning phase works.
Ad creative
What a static ad is, and why Meta favours ads that are genuinely different from each other.
Creative testing
How Meta's tests split people and budget, and how to tell a real winner from noise.
Metrics and attribution
What each Ads Manager number measures and how Meta decides which sales an ad gets credit for.
Creative fatigue
Why ads wear out, how Meta flags it and what frequency tells you about repetition.
AI ad creative
How AI ad generators work, where they fail, and what Meta requires of AI-made ads.