LinkedIn Ad Library: How To Research B2B Competitor Ads for Free
The LinkedIn Ad Library is a free, searchable database of ads run on LinkedIn. It lets marketers see the ads a company has run, making it a practical tool for researching B2B competitors’ messaging, offers and creative before building your own campaigns.
LinkedIn ads are among the more expensive social ads, so testing blindly wastes budget quickly. This guide explains what the LinkedIn Ad Library shows, five research methods I use, and how to turn findings into better B2B campaigns.
Quick Answer: What Is the LinkedIn Ad Library?
The LinkedIn Ad Library is a free public search tool showing ads that companies have run on LinkedIn. B2B marketers use it to study competitors’ messaging, formats and offers. For some ads it also shows targeting and impression ranges. Start by searching your top three competitors and noting their main message.
Want a B2B competitor ad review? An AI Marketing Audit includes competitor messaging analysis.
What Does the LinkedIn Ad Library Show?
The LinkedIn Ad Library shows ads by advertiser, including creative, copy and format, and LinkedIn documents how the Ad Library works. For certain ads it adds targeting parameters and impression ranges.
| Platform | Best for researching | Library |
|---|---|---|
| B2B messaging, thought leadership, lead magnets | LinkedIn Ad Library | |
| Facebook and Instagram | Consumer offers, creative variety | Meta Ad Library |
5 Ways To Use the LinkedIn Ad Library
These five methods turn the LinkedIn Ad Library into useful B2B insight.
- Map competitor messages. Note the problem, promise and proof each competitor leads with.
- Collect lead magnets. Record the guides, webinars and audits competitors offer.
- Compare formats. See whether they favour documents, video, single image or thought leader ads.
- Study hooks. Save strong opening lines; see my guide to hooks in LinkedIn ads.
- Find the gap. Identify messages nobody in your category uses and test them.
Why I Research Before Spending on LinkedIn
I research before spending on LinkedIn because clicks there cost more than on most platforms, so a weak message burns budget fast. In B2B campaigns I have run, the biggest gains came from sharper messaging about a specific problem, not from targeting tweaks.
The library also shows how crowded a message is. When every competitor promises “growth” and “efficiency”, a concrete, evidence-backed angle stands out.
Want B2B ads with sharper messaging? See my social media marketing approach.
Who Should Use the LinkedIn Ad Library?
The LinkedIn Ad Library suits B2B marketers, founders and agencies planning LinkedIn campaigns.
B2B Marketers
Teams can benchmark messaging and offers before briefing creative.
Founders and Consultants
Owners can see how competitors position similar services.
Who It Is Not For
Consumer brands with little LinkedIn presence will learn more from the Meta Ad Library.
Frequently Asked Questions About the LinkedIn Ad Library
Is the LinkedIn Ad Library free?
Yes. Anyone can search it at no cost.
Can I see competitors’ LinkedIn ad spend?
The library does not show spend for most ads, though some ads include impression ranges and targeting details.
How do I find a company’s ads?
Search the company name in the Ad Library, or use the Ads filter on the company’s LinkedIn page posts.
Should I copy successful ads?
Use insight, not copies. Original creative performs better long term and avoids intellectual property issues.
What To Do Next
The LinkedIn Ad Library gives B2B marketers free insight into competitors’ messaging and offers. Search your competitors, map their messages and test the angle nobody is using.
Want help with LinkedIn advertising? Talk to Crom about LinkedIn ads, or read about the Meta Ad Library.
About Crom Salvatera
Crom Salvatera is a Sydney-based AI marketing consultant and Head of SEO, AEO and GEO with 22+ years in marketing and 14 in high-level digital. He created the TLC Method (Tech, Links, Content), has managed and optimised 500+ ad accounts and has helped generate $650M+ in revenue for employers and clients, with brand experience including LEGO, Hasbro and JB Hi-Fi. Connect with him on LinkedIn.
