Before you try to view it, you need to understand why an outfit is hidden in the first place.
In IMVU, "E" stands for "Explicit" or "Mature" content, depending on the context of the item. When a creator publishes an item, they are required to tag it with a "Maturity Level":
There is no safe or legitimate "exclusive" tool that can view hidden outfit items on IMVU. Claims of such tools are generally scams designed to steal account information. The safest way to find a hidden item is to ask the avatar wearing it or search the catalog visually.
Server-Side Authority: IMVU is not a peer-to-peer application. Your client does not possess the data for items you aren't allowed to see. If an item is "E-Hidden," the server simply does not send the texture or mesh data to your computer. No software on your machine can render data it never receives.
Conclusion: The "Exclusive Viewer" that claims to un-hide all E items on any user is almost certainly malware.
If you want to copy an outfit (not just view it), there are legitimate Discord bots like "IMVU Outfit Viewer Bot." These bots use the official API. If you paste a user's avatarpage URL, the bot will generate a text list of the product IDs they are wearing.
If you are trying to find an item you saw on someone's avatar but it is hidden, try these legitimate methods instead:
Instead of trying to spy on hidden outfits, why not own them or see them legitimately?
Searching for or attempting to use these "exclusive" tools poses significant risks to your IMVU account and computer:
ONLINE CATALOGUE