Best Free Ad Spy Tools and Ad Libraries for Startups in 2026

If your immediate question is "what is this company running on Facebook or Instagram right now?", start with Meta Ad Library and do not pay anybody first. It is Meta's own public search surface, so you can search an advertiser or keyword and inspect ads currently running across Meta technologies. That is enough to see an offer, format, CTA, Page name, and the live creative your prospect is seeing.

Keep the boundary clear. The library does not show a commercial advertiser's revenue, conversions, bid strategy, or internal account results. Its seven-year retention and downloadable reporting apply to social-issue, election, and political ads, while commercial-ad history is more limited. Use it to form a testable creative hypothesis, then judge your own test using your own account data.

Google Ads Transparency Center is the equivalent first stop when search, YouTube, or Google display is closer to your planned channel. Search an advertiser or website, then review the available ads and identity information tied to the result. A website result can expose more than one advertiser account pointing ads at the same domain, which is handy when a competitor operates separate brands or campaigns.

It is deliberately a lookup tool, not a research workspace. There is no published saved-board, monitoring, alerting, or reporting workflow, and the public records do not establish budget, conversions, profitability, or private targeting. It belongs beside a simple research spreadsheet or your own saved evidence, not at the center of an ongoing competitor-monitoring process.

BigSpy is the reasonable next step if a Meta-only search keeps sending you from tab to tab. Its free plan is a Facebook preview, while paid plans add a broader database covering 11 advertising platforms, 80-plus countries, and 26 languages. Keyword, feature, and visual search give you several ways to begin, which helps when you know a creative style but not the advertiser behind it.

For a startup, the free plan is useful for a quick look, not for building a research habit: it caps Facebook searches and tracked creatives. Growth is the practical entry point when Google Ads, YouTube, TikTok, X, or deeper entity research matters. Do not turn its popularity, impressions, duration, or last-seen signals into a claim about a competitor's spend or return. They are research clues, not their account results.

Use Poach is small on purpose. It takes an ad you have already found in Facebook Ad Library and saves the media plus a metadata card to your local disk, including copy, CTA, advertiser, landing URL, dates, and your own tags. That solves the very common founder problem of collecting twenty screenshots and then having no idea which landing page or offer belonged to each one.

The free extension is enough if you simply need an orderly evidence folder. The $67 lifetime Pro license makes more sense if Notion is already where you keep launch plans and briefs, because it saves captures as rows in your own Notion database. It cannot discover ads, monitor competitors, or reach beyond Facebook Ad Library, so pair it with Meta Ad Library rather than treating it as a replacement.

Spytrend earns its place when one visible Meta ad leads to the more valuable question: what other pages, domains, and landing pages sit behind this advertiser? Its Webmasters view groups related activity using Pixel IDs, landing domains, Page IDs, and IP addresses. That can reveal a competitor's connected testing footprint instead of leaving you with isolated creative examples.

It is not free research at scale. A free account exists, while paid plans add fresh ads, the full TikTok corpus, creative deduplication, and MCP access. The platform is focused on Meta and TikTok, not Google or native networks, and its days-active and re-upload figures still do not prove spend, conversions, ROAS, or profitability. Buy it when that connected Meta view will change an actual test decision.

SwipeHarbor is an unusual fit, but a good one if your customer acquisition research is happening on NewsBreak, Rumble, or YouTube rather than Meta. Its paid library stores captured creative with observation dates, available landing-page evidence, device context, and, where ready, Rumble transcripts. Private collections and notes make it easier to turn a find into a real campaign brief.

Do not buy it expecting a universal ad archive. Meta and TikTok are marked as coming soon, and the catalog is a captured sample, not complete platform inventory. At $79.99 per month or $749 paid annually, it is for a team with a clear reason to study those three channels. Its free planning tools, including a campaign brief and break-even ROAS calculator, are worth using without that commitment.

Free Ad Diagnosis Tool is not an ad library at all, and that is why it belongs at the end of this guide. Once you have gathered competitor ideas, it gives you a free way to enter your own Google Ads or Meta Ads figures and locate the weak part of a basic funnel. The tool takes different question paths for Google and Meta, then calculates directional signals such as CPC, CPL, conversion rate, CPM, frequency, and video-hook or hold measures when the inputs allow it.

Treat the result as a triage list, not an audit. It cannot connect to an ad account, its score depends completely on the figures you enter, and it has no integrations, API, scheduled monitoring, or client reporting. For a founder who needs a concrete next check before hiring help, that is still more useful than another vague health score.