Every major ad platform now runs a public transparency library. You can see almost any brand's live ads — the creative, the copy, when it started running, sometimes where it's targeted — without spending a penny or creating an account. This guide walks through all four tools with exact steps and direct links, then covers what they deliberately leave out.
| Tool | URL | Covers | Login needed |
|---|---|---|---|
| Google Ads Transparency Center | adstransparency.google.com | Search, YouTube, Display | No |
| Meta Ad Library | facebook.com/ads/library | Facebook, Instagram, Messenger, Audience Network | No |
| TikTok Commercial Content Library | library.tiktok.com | TikTok ads shown in the UK, EEA and Switzerland | No |
| LinkedIn Ad Library | linkedin.com/ad-library | LinkedIn ads run since June 2023 | No |
Each one exists because of regulation — mostly the EU's Digital Services Act — not because the platforms want you researching competitors. That shapes what they show and, more importantly, what they don't. More on that below.
Google's library covers ads on Search, YouTube and Display from every verified advertiser — and since Google requires identity verification to run ads at all, that's effectively everyone.
What you get: the creative itself, the format, the region it ran in, and the last-shown date. In our own data pulls, returned ads span roughly a rolling twelve-month window for ordinary commercial ads. What you don't get: spend, impressions, clicks, landing pages, or targeting.
Caveat: the Transparency Center quietly stops serving results long before it runs out of ads. For Pets at Home in the UK, it reported 3,000 total results but stopped paginating at around 900 creatives. For high-volume advertisers you are seeing a sample, not the full picture — we've documented this in detail in our Google Ads Transparency Center guide.
The most generous of the four. Meta shows every ad currently running across Facebook, Instagram, Messenger and the Audience Network, from any Page, worldwide.
What you get: the full creative, primary text, headline, call-to-action, which Meta platforms it's running on, the start date, and whether the advertiser is running multiple versions of the same ad — which is a strong hint they're split-testing it. If you're browsing from the UK or EU, you'll also see extra transparency data on EU-targeted ads: reach ranges, beneficiary and payer, and targeting parameters.
Caveat: for ordinary commercial ads, the library only shows what's active right now. The moment a campaign is switched off, it vanishes. Only political and social-issue ads are archived long-term (seven years, with spend and impression ranges). If you didn't capture a competitor's ad while it ran, it's gone.
TikTok splits transparency across two tools, and they answer different questions.
Commercial Content Library — library.tiktok.com. This is the regulatory library: every ad shown to users in the UK, EEA and Switzerland.
What you get: the creative, first-shown and last-shown dates, the countries it reached, reach ranges, and a summary of the targeting used. No spend, no engagement metrics — and no coverage at all outside Europe, so a competitor's US-only TikTok campaigns simply won't appear.
Creative Center Top Ads — ads.tiktok.com/business/creativecenter. A curated showcase of high-performing auction ads, filterable by region, objective, format and language, sortable by reach and CTR. Useful for spotting what's working in a category, but it's a highlight reel TikTok chooses to show, not a searchable record of what any specific brand is running. Use the Commercial Content Library for competitor research and the Creative Center for inspiration.
Quietly one of the most useful tools for B2B, because so few people check it.
Alternatively, open any company's LinkedIn Page and look for the ads section to browse that advertiser directly.
What you get, per LinkedIn's own documentation: the ad preview and format, the advertiser and payer names, and — for EU-targeted ads — impression ranges and targeting parameters. The library holds ads run since June 2023, and each ad stays for one year after its last impression, which makes LinkedIn the only one of the four where you can reliably see recently stopped commercial campaigns.
The libraries are genuinely useful, but they were built for regulators, not marketers. Be honest with yourself about the gaps:
Scrolling a competitor's ads is entertainment. Reading them properly is research. Three things to actually look for:
1. Longevity = winners. Advertisers kill ads that don't perform. Any creative that's been running for months is, by definition, paying for itself — the run dates are the closest thing to performance data the free tools give you. Sort by first-shown date where you can, and pay most attention to the oldest active ads. When you look at a brand like Gymshark, the handful of evergreen creatives that survive month after month tell you more about what converts than fifty fresh tests.
2. New launches. Ads that appeared in the last week or two are where the budget conversation is happening right now — a new product, a new market, a new angle being tested. A cluster of new creatives with the same theme usually means a campaign brief just shipped. Fintech brands like Monzo and Wise are worth watching this way: new feature launches show up in the ad libraries days before the PR does.
3. Promo cadence. Scan copy for "sale", "% off", "free delivery" and deadline language across a few weeks and a rhythm emerges: how often a competitor discounts, how deep, and whether urgency is real or a permanent fixture. If a rival runs "ends Sunday" every Sunday, that tells you how to price against them. If they almost never discount, a genuine sale from them is a signal worth reacting to.
Do this manually with the four free tools and a spreadsheet, and it works — for one or two competitors, checked weekly, in one channel. The tools are free; your time is the cost. When the list of brands, channels and questions grows past what a weekly manual sweep can cover, that's when automated tracking earns its keep.
AdRival tracks and AI-qualifies every live ad the brands we cover are running across Google, Meta, TikTok and LinkedIn — updated weekly.
Browse live ad librariesMore guides: Google Ads Transparency Center: what it shows and hides · live ad libraries