Roblox UGC Requirements Checker

To pass Roblox's upload validation a UGC item has to satisfy several rules at once: a triangle count under the per-type limit (accessories cap at 4000 triangles; layered clothing has its own budget), a single material, a texture within the size limit (1024 px is the safe target, though 2048 px items do pass in practice), correct inner and outer cage meshes for layered clothing, and valid R15 skinning with at most 4 influences per vertex. Publishing also costs 200 Robux per item and requires ID verification. This checker inspects those file-level rules for you before you pay.

No. Accessories such as hats, hair and gear run through 9 checks — triangle count, single material, texture size, attachment and mesh health — and don't need cages. Layered clothing runs through all 12 checks because it also needs an inner cage, an outer cage matching Roblox's template, and full R15 skinning so it deforms with the body. The checker switches its rule set based on the type you choose.

The most common causes are a missing or wrong cage (layered clothing with no inner/outer cage, or a cage whose vertex count was changed), missing skinning data, a mismatched UV on the cage, more than one material, or a triangle count over the limit. Each of these shows up as a terse 'validation failed' message in Studio — the checker names the exact rule that failed and gives the fix, so you're not guessing.

Roblox charges a 200 Robux upload fee per item, and your first Marketplace submissions carry a 600 Robux advance that's recovered from early earnings. You also need ID verification and 2FA on the account. Those fees aren't refunded if the item fails validation, which is exactly why a free pre-check pays off — the checker itself costs nothing.

No, and we won't claim it does. The checker is an approximate pre-check that mirrors Roblox's file-level rules; Roblox's own validation at upload is the authoritative step, and it also applies moderation and policy checks we can't see. Treat a green report as 'the common file problems are handled', not a guarantee — it removes avoidable failures so the paid upload has the best chance.

The checker is the diagnosis; the Cage Generator is one of the treatments. The checker inspects an existing file and tells you what's wrong. If it reports missing or broken cages, the Cage Generator builds a correct inner and outer cage plus R15 skinning automatically. Run the checker first, fix what it flags — with the Cage Generator when cages are the issue — then re-check.

Cages are invisible reference meshes that tell Roblox how layered clothing wraps an avatar. The inner cage matches the body underneath and the outer cage defines the garment's outer surface, so items can stack in the right order. They must match Roblox's official cage template exactly — 1358 vertices with untouched UVs — which is why the checker verifies both the vertex count and the UVs, not just that a cage is present.

Yes, it's free. During early access you can run up to 3 checks per day per account, which is enough to iterate a single item to green. If you hit the limit, come back tomorrow, or use the Cage Generator to fix cage issues in the meantime.

1024 px is the safe, recommended size, but it isn't a hard wall — production items have shipped with 2048 px textures and passed. Because of that the checker only warns on texture size instead of failing you outright: a larger texture may still upload, it just costs more memory and isn't guaranteed on every asset type.