Free Meta ad similarity checker
Upload 2 to 20 versions of your ad and see which ones are the same idea in different clothes, before you pay to test them. Free, with no account needed.
PNG, JPG or WebP. Static images, 2 to 20 per check.
How it works
- Upload your versionsAdd the ad images you plan to launch, from 2 up to 20.
- We compare every pairA picture match scores how alike each pair of images looks. An AI read then checks whether each pair says the same thing, across ten points such as the promise, the offer and who is shown.
- See the groupsVersions that are the same idea are grouped together, so you can keep the strongest one and replace the rest with something different.
What the check tells you
How alike the images look
Each pair gets a score from CLIP image embeddings. It's arithmetic, not an opinion: the same two images always get the same score.
Whether they say the same thing
Two ads can look different and still make the same promise to the same person. The AI read compares each pair on ten points and labels its result as an AI read.
Which versions are one idea
The report groups versions that are the same idea, so you can see at a glance how many different ideas you're actually about to test.
Why it matters
If five versions share the same hook, offer and format, you aren't testing five ideas. You're testing one idea five times, and paying for it. In most accounts the result is easy to see: one or two ads take most of the spend and the rest barely run. Meta's own guidance pushes advertisers to diversify creative, and its engineers describe Andromeda, the system that picks which ads to show, as built for a much larger volume of creative.
The changes that make a version a different idea are the hook, the angle, the format and the persona. A new background colour or one changed word usually isn't enough. More on this in Meta Entity IDs explained.
What it doesn't do
- It can't see inside Meta's system. This is our own check. Meta doesn't publish how it groups similar ads.
- It checks static images. Video isn't supported in this check.
- It doesn't replace a real test. It tells you which versions are worth testing. Spend still decides the winner. Meta's free Creative test helps each version get a fair run.
Questions
Is the similarity checker really free?
Yes. You can run it without an account. Signing up gives you 1,000 free credits for the rest of SellTheClick.
How many ads can I check at once?
From 2 to 20 static images per check, in PNG, JPG or WebP.
Does it connect to my ad account?
No. It only looks at the images you upload.
Will Meta treat my ads the same way?
We can't promise that. Meta doesn't publish how it groups similar ads. The check shows which versions share an idea, which is what usually makes ads compete with each other.
What should I change to make an ad different?
Change the hook, the angle (problem, proof, offer or story), the format or the person shown. Small visual tweaks usually leave it the same idea.
Are there other tools that do this?
Yes. We compared six, including free options from Triple Whale and Meta, in the best tools to check if Meta ad variations are too similar.
Find out how many ideas you're really testing
Free, no account. 2 to 20 images.