How to use the Meta Ad Library to find winning ads (2026 guide)

The Meta Ad Library is the single most useful free tool in performance marketing, and most people use maybe a tenth of it. It's a public, searchable archive of every ad currently running across Facebook, Instagram, Messenger, and Threads — no login, no spend, no relationship with the advertiser required. You can type in a competitor's name and see, in seconds, exactly what creative they're putting money behind right now.

The catch is that the Ad Library shows you everything a page is running, with no ranking and no signal about what's working. Scroll a big advertiser and you'll see dozens of ads with no obvious way to tell the winners from the tests. This guide walks through how to search it properly, which filters actually matter, and the one reading trick — run-length — that turns an undifferentiated wall of ads into a ranked list of proven performers.

How to search the Meta Ad Library

Go to facebook.com/ads/library. Before you can search, the page asks you to pick a country and an ad category. Country matters — an advertiser's US ads and their UK ads can be completely different creative, so choose the market you actually care about. For category, leave it on "All ads" unless you're specifically researching housing, employment, credit, or political ads (those are archived under stricter rules and searched separately).

From there you have two ways in:

• Search by advertiser (page). Type a brand name and select their verified page. This shows every active ad that page is running — the cleanest way to study one competitor end to end.
• Search by keyword. Type a term like "creatine gummies" or "project management" and Meta returns ads from any advertiser whose copy mentions it. This is how you discover competitors you didn't know you had, and how you find the best creative in a category regardless of who made it.

Start with a known competitor by page to calibrate your eye, then switch to keyword search to widen the net. The keyword view is where the real discovery happens — you'll surface direct rivals, adjacent brands, and the occasional outsider running category-defining creative.

The filters that actually matter

Once results load, a handful of filters do most of the work:

• Platform. Filter to Instagram, Facebook, Messenger, or Threads to see where a competitor concentrates spend. A brand running almost everything on Instagram Reels is telling you where their audience is.
• Media type. Split image from video. If a category's top advertisers are overwhelmingly running video, that's a strong hint about what the platform is rewarding for that audience right now.
• Active vs inactive. The default view is active ads only, but you can view ads that have stopped running too. Inactive ads are a graveyard of tests that got cut — useful for seeing what a brand tried and abandoned.
• Date range / start date. Every ad card shows the date it started running. This is the most important number on the whole card, and the next section is entirely about why.

What the Ad Library deliberately does not give you is any performance metric — no spend, no impressions, no click-through for standard commercial ads. So you can't sort by "best." You have to infer it. That's where run-length comes in.

Run-length: the free winner signal

Here's the insight that changes how you read the entire library: how long an ad has been running is the closest thing to a public performance metric you'll get.

Advertisers kill losers fast. If an ad isn't returning on spend, it gets paused within days — nobody keeps paying to run creative that doesn't convert. So an ad that has been continuously active for weeks or months is, by revealed preference, an ad the advertiser is confident makes money. They've had every incentive to turn it off and chose not to. Longevity is the market voting with a budget.

To read it, look at each ad's start date and do the subtraction against today. An ad that started three months ago and is still active is a proven winner in that account. An ad that started four days ago is a test — it might be great, but the brand doesn't know yet, and neither do you. When you're deciding which competitor ads to study and remix, sort your attention by run-length, not by whatever order Meta happens to show them in.

A few honest caveats: run-length is a strong signal, not a certainty. Brand-awareness ads sometimes run long for reasons unrelated to direct response. Very large advertisers occasionally leave evergreen creative up out of inertia. And the Ad Library shows a start date but doesn't always make total run duration obvious at a glance across a big account. But as a free heuristic for "what is this brand confident about," nothing else in the tool comes close. If you take one habit from this guide, make it this: let the long-runners tell you what to copy.

Turning what you find into your own ad

Studying the library is step one. The gap most people never cross is going from "I found a great competitor ad" to "I have my own version of it running." Manually, that means screenshotting the ad, reverse-engineering its structure — the hook, the angle, the pacing, the CTA — and then briefing a designer or shooting your own creative around it. It works, but it's slow, and by the time you ship, the trend has moved.

This is the part Hermoso automates. Its Ad Spy does the searching, filtering, and run-length reading for you: point it at a competitor or a category and it pulls their live ads from the Meta library (plus Google, LinkedIn, and organic TikTok), then ranks what it finds so the proven long-runners rise to the top instead of getting lost in the scroll. You skip the manual detective work and land straight on the ads worth learning from.

From there you can remix. Hermoso reads the structure of an ad you like and produces a finished version for your own product — your brand, your product photo, your copy and CTA baked in, as an on-brand image or video ad ready to run. Under the hood it researches what's winning first, then routes across multiple top image and video models per job so you're never picking the tool. The free plan includes 250+ earnable free credits with no card required, so you can go from "I found a winner in the Ad Library" to "I have my own version" in one sitting. Try it on a competitor you already study — start with the ad that's been running longest.

Frequently asked

Is the Meta Ad Library free to use?

Yes. It's a public archive at facebook.com/ads/library with no login, no cost, and no relationship with the advertiser required. Anyone can search every ad running across Facebook, Instagram, Messenger, and Threads in any country Meta operates in.

Can I see how much a competitor is spending on their ads?

Not for standard commercial ads — Meta only publishes spend and impression ranges for social-issue, electoral, and political ads. For everything else you infer performance indirectly, and the strongest free signal is how long an ad has been running.

Why does how long an ad has run matter?

Advertisers pause ads that don't return on spend, usually within days. So an ad that has stayed continuously active for weeks or months is, by revealed preference, one the advertiser is confident is profitable — they had every incentive to turn it off and didn't. Longevity is the closest thing to a public performance metric the Ad Library offers.

How do I find competitors I don't already know about?

Search by keyword instead of by page. Typing a category term returns ads from any advertiser whose copy mentions it, which surfaces direct rivals, adjacent brands, and outsiders running strong category creative you'd never have thought to look up.

How does Hermoso use the Meta Ad Library?

Hermoso's Ad Spy pulls a competitor's or category's live ads from the Meta library — plus Google, LinkedIn, and organic TikTok — and ranks them so the proven long-runners surface first. You can then remix any ad into a finished, on-brand version for your own product, with your brand, product photo, copy, and CTA baked in.