Best Ad Spy Tools in 2026: Free Ad Libraries First, Then the Paid Tools

"Ad spy tool" sounds sneakier than it is. Every tool here works from ads that are already public. The free libraries are run by the ad platforms themselves for transparency. The paid tools add search, history, saving and alerts on top.

What matters is what you do with it. Copying a competitor's ad rarely works, because their ad is built on their offer, their audience and their brand. Studying why their long-running ads work, and what they keep coming back to, is where the value is. We'll cover how at the end.

Prices below come from each vendor's own pricing page, checked October 21–23, 2026.

Comparison table

1. Meta Ad Library (free)

This is the source most paid spy tools build on, and you can use it directly. Go to the Ad Library, pick a country, and search by keyword or advertiser. You don't need to log in. Each result shows a Library ID and the date it "Started running on". Many show "This ad has multiple versions" or how many ads use the same creative and text, which tells you an advertiser is testing variations of it.

You can filter to active ads and sort results, including by total impressions. For competitor research, the start date is the most useful signal you get for free. An ad that's been running for months is usually one the advertiser is happy to keep paying for. That's an inference, not a fact Meta publishes, but it's the heuristic most media buyers use.

Limits. No saving, no alerts, and it's built around active ads, so tracking history is up to you. It doesn't show spend for regular commercial ads.

Step-by-step: how to use the Meta Ads Library for competitor research.

2. TikTok Top Ads in Creative Center (free)

TikTok's Creative Center has a Top Ads dashboard of high-performing ads. According to TikTok's help centre, it only shows ads that advertisers have authorised and that meet performance thresholds. Each ad lists details like region, industry, campaign objective, brand, caption, likes, comments, shares, a CTR percentile and a budget level.

Limits. It's a curated selection, not every ad on TikTok, so you can't use it to see everything a specific competitor runs.

Guide: researching competitor ads in TikTok Creative Center.

3. Google Ads Transparency Center (free)

Google's equivalent lets you find ads published through Google by searching an advertiser's name or website, with a region selector. It's the quickest way to see whether a competitor is running search or YouTube ads and what they say.

Limits. Like Meta's library, it's a search tool, not a research workspace.

4. Foreplay

Foreplay is built around a swipe file: save ads from the Meta Ad Library, TikTok, LinkedIn, Instagram and YouTube Shorts before they disappear, then turn them into briefs and scripts. Discovery searches a shared library Foreplay says holds 200M+ ads, sorted by longest-running. Spyder watches competitors' Meta ads around the clock, with up to 3 years of history.

Price: Basic is $59 a month ($49 billed yearly) with the swipe file, Discovery and Briefs. Spyder starts on Workflow at $175 a month ($149 yearly), with 5 users. Agency is $459 a month ($389 yearly). There's a 7-day trial that needs a card, and a 14-day money-back guarantee.

Best for: creative strategists and agencies who brief creators from saved ads. More in Foreplay vs SellTheClick.

5. BigSpy

BigSpy has the most generous free plan of the paid tools: Facebook ads, 10 searches a day, a few video analyses and 20 tracked creatives. Paid plans add platforms and downloads.

Price: Starter $69 a month ($49 yearly) adds Instagram, unlimited searches and 50 downloads a day. Growth $159 ($119 yearly) adds Google Ads, YouTube, X, TikTok and more. Scale $399 ($299 yearly) has 5 seats. Ultimate $499 ($399 yearly) covers 11 platforms.

Best for: searching across many platforms without a big budget. Compared in detail in BigSpy vs Foreplay vs SellTheClick.

6. PowerAdSpy

PowerAdSpy covers the most networks at its top tier: Facebook and Instagram on Basic, then Pinterest and Google Display on Standard, YouTube, native and Google Search on Platinum, and 11 networks including LinkedIn, TikTok, Quora and Reddit on Palladium.

Price: Basic $69, Standard $99, Platinum $279 and Palladium $399 a month. Trials cost $1 for 3 days on Basic and $7 for 3 days on the others. Yearly billing is much cheaper per month on most plans.

Best for: research across lots of networks, especially if you'll pay yearly.

7. AdSpy

AdSpy focuses on Facebook and Instagram and says its database holds more than 213 million ads. It's one plan, $149 a month.

Best for: people who want a large searchable archive of Meta ads beyond what's live in Meta's own library.

8. Atria

Atria isn't only a spy tool, but following competitor brands is a core part of it (50 brands on Core, 100 with AI insights on Plus). It adds creative analytics and AI briefs from what it finds.

Price: $129 a month billed yearly on Core, during a Black Friday offer (list $219). Free start with 1,000 credits.

Best for: teams that want research to flow straight into briefs. More in Atria vs SellTheClick.

Where SellTheClick fits

We make SellTheClick, so it's not ranked. It isn't a spy tool, but on the Rampup and Pro plans it does one competitor job: it puts your ad next to a competitor's longest-running live ad, quoted word for word, and shows where yours is weaker. That's a narrower question than "what is everyone running?", and it's often the one that leads to a better next ad. Plans start at $29 a month; the competitor comparison is on Rampup at $79.

How to use ad spy tools without copying

1. Find the long runners. In the Meta Ad Library, filter to active ads and look for ones that started months ago. Those are the ads a competitor keeps paying for.
2. Write down the idea, not the design. What problem does the ad open with? What proof does it use? What's the offer? Ignore colours and fonts.
3. Count the versions. "This ad has multiple versions" tells you the advertiser is testing that idea. Several long runners on one idea means it's working for them.
4. Find the gap. If every competitor leads with price, an ad that leads with a specific result or a founder story will stand out.
5. Check your own versions before launch. Ads inspired by the same competitor often end up looking alike. Run them through the free similarity checker first.

FAQ

What is the best free ad spy tool?

Meta's Ad Library. It shows every active ad on Facebook and Instagram, works without logging in, and shows when each ad started running. TikTok's Top Ads and Google's Ads Transparency Center are the free equivalents for those platforms.

Can I see how much a competitor spends on Facebook ads?

Not for regular commercial ads. Meta's Ad Library doesn't show spend for non-political ads. Spy tools estimate from what's public, so treat any spend figure they show as a guess.

How do I find a competitor's best Facebook ads?

Search their page in the Meta Ad Library, filter to active ads, and look at the "Started running on" dates. Ads that have run for months, often with multiple versions, are usually ones they keep paying for because they work.

Is BigSpy free?

BigSpy has a free plan covering Facebook ads with 10 searches a day. Paid plans start at $69 a month, or $49 a month billed yearly.

Is using ad spy tools legal?

Looking at public ads is legal and the ad libraries exist for transparency. Copying someone's creative, copy or music is a different matter. Use what you learn to make your own ads.

Do I need a paid spy tool?

Not to start. The free libraries cover active ads. Paid tools are worth it when you need saved boards, alerts, history after ads stop, or several platforms in one search.

References

1. Meta Ad Library
2. TikTok Ads help: About Top Ads
3. Google Ads Transparency Center
4. Foreplay pricing
5. BigSpy pricing
6. PowerAdSpy pricing
7. AdSpy
8. Atria pricing