You can see every active ad your competitors are running, for free, because the platforms are required to publish them. The Meta Ad Library shows every live Facebook and Instagram ad from any advertiser. The Google Ads Transparency Center shows a verified advertiser's ads across Search, YouTube, Display and Gmail. The TikTok Creative Center goes one better and shows top-performing TikTok ads sortable by CTR and reach, the only free library with an actual performance signal. The LinkedIn Ad Library covers every LinkedIn ad run since June 2023. No spy tool subscription required.
The catch is that "seeing the ads" and "knowing which ads work" are different problems. The libraries mostly show you what is running, not what is profitable, so the skill is reading the signals: how long an ad has been live, how many variants exist, and what survives month to month. An ad that has run for 90 days or more is almost certainly paying for itself, and that one heuristic turns a wall of creative into a shortlist of proven angles.
This guide walks through each free library in turn, exactly what you can and cannot see in 2026, including the EU transparency extras most people miss. Then it covers the research layer the spy tools never give you: mining competitor reviews for positioning and copy, now fast enough with AI to do in an evening. It is written for a founder doing their own marketing, probably at 11pm, who would rather spend the spy tool money on actual ads.
What can you actually see in the Meta Ad Library (and what you can't)?
Go to facebook.com/ads/library, pick a country, choose "All ads" and search a brand name or keyword. For any advertiser you get every ad currently active across Meta's apps: the full creative, the copy, the start date, which platforms it runs on, and whether multiple versions of that ad exist. No account needed.
What you cannot see, for a normal commercial ad, is anything about money or results: no spend, no impressions, no targeting, no performance. Meta publishes those extras only for two categories, per Meta's own transparency documentation. Ads about social issues, elections or politics show spend and reach and stay archived for seven years. And ads that delivered an impression in the EU stay visible for a year after their last impression and carry extra transparency data. That second one is the underrated trick: switch your country filter to an EU market like Ireland or Germany and you can often see reach figures and audience information for the same campaigns, plus inactive ads, which tells you what they already tested and killed.
Practical filters worth using: media type (find all their videos at once), active status, and date range. The start date on each ad is the single most valuable field in the whole library; more on that in the last section.
Do this now: search your three closest competitors in the Ad Library, switch the country to an EU market, and screenshot every ad that has been running for over 60 days.
How do you find competitors' Google and YouTube ads in the Transparency Center?
The Ads Transparency Center is Google's equivalent, and it covers more than people assume. Search an advertiser's name or, better, their website domain, and you get the ads that verified advertiser has served across Search, Display, Gmail and YouTube, filterable by format (text, image, video), region and date range, per Google's transparency documentation. You also see the advertiser's verified legal name and location, which is handy for working out who is actually behind a brand, and whether affiliates or resellers are running ads on a competitor's name.
What is missing: keywords, spend and performance. You can see that a competitor runs a Search ad with a given headline; you cannot see what queries trigger it or what it costs them. As with Meta, the EEA gets extras: targeting information, how many people received each ad, and subject labels.
The format filters matter more since the Demand Gen shift. Demand Gen campaigns run one set of creatives across YouTube (including Shorts), Discover, Gmail, Maps and the Display Network, and Google is migrating Display campaigns into Demand Gen starting June 2026. Practically, that means a competitor's image and video ads increasingly come from one campaign, so in the Transparency Center you will see the same concept recut across formats. Filter to video: those are their YouTube ads, and the concepts they bothered to produce video for are the ones they believe in.
Do this now: search each competitor's domain, filter to video, and note which two or three concepts appear in the most formats. Those are their priority messages.
How do you find winning TikTok ads in the Creative Center?
TikTok's Top Ads dashboard in the Creative Center is different in kind from the other libraries: it is not a legal transparency archive, it is TikTok showing off high-performing auction ads to inspire advertisers. That makes it the only free library with a real performance signal. You can filter by region, campaign objective, ad language, ad format and a minimum number of likes, and sort the results by reach or by CTR.
The trade-off: you cannot reliably look up one specific brand, because only top ads appear and brands can remove theirs. Treat it as a category research tool instead. Filter to your industry and region, sort by CTR, and study the top 20: watch the first two seconds of each on mute, because that is where TikTok ads win or lose. Note the hook style (question, bold claim, pattern interrupt, "things I wish I knew"), whether it is creator-shot or studio, and how long before the product appears. Click into individual ads for the detail view and keyword insights.
Even if you never run TikTok ads, this is the cheapest hook-writing education available, and the winning hooks port straight into Reels and Shorts.
Do this now: pull the top 10 ads in your category by CTR, write down each hook word for word, and rewrite your five best hooks for your own product.