Guide

Facebook Ad Spy Tools

Facebook and Instagram are the most transparent ad platforms there is — every active ad is public. Here's how to find competitor creative, which tools are worth paying for, and how to tell which of the ads you find are actually working.


Start free with the Meta Ad Library

Meta's official Ad Library shows every ad any page is currently running on Facebook and Instagram — free, no login required. Search a competitor's name and you can see their entire active creative rotation, how many variants they're testing, and roughly how long each has run. For most research, this is all you need.

When paid tools help

Paid spy tools — AdSpy, Foreplay, BigSpy — sit on top of the same public ads but add faster keyword and niche search, engagement filters, and saved swipe files. If you research at volume or want to organize inspiration by angle, they save real time. If you're checking a handful of competitors, the free library is enough. See the full landscape in ad spy tools.

Run time is a weak signal

The most common mistake: assuming a long-running ad is a winner. Sometimes it is; often it's just an ad on autopilot budget that nobody turned off. The Ad Library can tell you an ad exists and roughly how long it's run — never why it works or whether it holds attention past the first second.

Judge the creative, then beat it

Once you've found competitor ads worth studying, score them for attention: Hook Strength, the drop-off second, and a percentile against top performers tell you which are genuinely strong and worth modeling. Then test your own version before you spend — see Facebook ad creative testing and how to tell if a competitor ad is working.

Find it in the library, judge it here

Score any competitor ad for attention before you model it. First analysis free.

Score an Ad

Frequently asked questions

What is the best Facebook ad spy tool?

The free Meta Ad Library is the best starting point — it's official and shows every active Facebook and Instagram ad by page. For faster search, niche filtering, and saved swipe files, paid tools like AdSpy, Foreplay, and BigSpy add convenience on top of the same underlying public ads.

Is it legal to spy on Facebook ads?

Yes. Facebook ads shown in the Meta Ad Library are public by design — Meta built the library for transparency. Studying competitor creative for research and inspiration is standard practice, the same thing ad teardown channels do. Just don't copy protected assets outright; borrow structure and angle, not the exact creative.

How do I know if a competitor's Facebook ad is working?

The Ad Library shows how long an ad has run, which is a weak proxy — long-running ads aren't always winners. To judge the creative itself, analyze whether it holds attention: its hook strength and where engagement drops. That tells you whether an ad is worth modeling, which run-time alone can't.

By Nina Krecicki · Published