ARLN
BLENDER ADD-ON · ROBLOX UGC
Make Roblox UGC that passes the first time.
UGCLift checks your hats, hair, layered clothing, bodies, heads and emotes the way Roblox's upload validation does, right in Blender. Every problem is explained, most are fixed in one click, and the item is exported ready for Roblox Studio.
▶ Watch the demoDocumentationFAQ
NEW IN 1.1
Glowing items, checked before you pay to upload
Roblox opened emissive (glowing) avatar items to every creator on 2 September 2026, and a glowing item costs more to upload. UGCLift checks the glow the way Roblox takes it: EmissiveStrength from 0 to 40, whether the item's colour can carry the glow (Roblox takes a glow's colour from the texture), how much of a large item glows, and the MeshPart accessory Studio needs. Export writes the gray emissive mask, Bake PBR Maps keeps the glow, and the Studio plugin sets EmissiveStrength and EmissiveTint, worked out so the glow looks as it did in Blender.
SOUND FAMILIAR?
Roblox said no. Again.
Studio's validation stops an upload with messages like these, after you have already exported, imported and fitted the item. UGCLift finds the same problems in Blender, before you export, and tells you what to do about them.
HOW IT WORKS
Three steps from Blender to Roblox
EVERYTHING IN UGCLIFT
Tools for every Roblox avatar item
Not only a checker: UGCLift has the tools to make the items too.
01 · CHECK
See what Roblox would refuse
Triangle budgets, the size box of each accessory type, attachments, cage distances and UVs, textures, skinning, FACS poses and body proportions, measured the way Roblox measures them. The triangle count and the size box stay live while you model. Each problem selects its faces in the viewport and comes with the reason, the fix and the message Studio would show.
02 · LAYERED CLOTHING
Cages that fit, without the pain
Fit Outer Cage builds the outer cage from Roblox's template and tucks the inner cage under the garment, checked with Roblox's own distance test. The heatmap shows the fit, weights come over from the body, skirts get loose weights, and the Motion and Pose tests walk, run and sit the avatar so you see stretching before Roblox does.
03 · BODIES & DYNAMIC HEADS
Bodies and faces Roblox accepts
Attachments placed for you, an R15 rig from your parts, body cages from Roblox's template, and the body checks Roblox runs: sizes, how solid each part looks from six sides, thin bits, pose. The face auto-rig turns 14 points into 21 bones and 47 FACS poses, the 17 Roblox requires included, and checks them the way Roblox checks a dynamic head.
04 · TEXTURES & COLOUR
61 materials and every colourway at once
Procedural materials in seven groups, smart masks for wear and dirt, decals and all-over prints, trim sheets and PBR baking to the four maps Roblox reads. Color Variants make every colourway in one go, each with its own materials, FBX and picture.
05 · RENDERS, BATCHES & ROBLOX
From one item to your whole catalog
Marketplace thumbnails and turntables, a quality score, and an Item Catalog that checks, fixes, exports and renders every item in your file, also from the command line. Upload and update with Open Cloud using your own key, and set up thumbnails with the Roblox Studio companion plugin.
BONUS · AVATAR CREATOR
A Roblox-style avatar editor inside Blender
239 bodies, 221 hairstyles, 238 clothes and 60 ready-made looks to start your items from or to try them on. Export a body in 15 parts with cages and a FACS face rig, or any item on its own as an accessory or layered clothing.
PROOF
Tested in Roblox Studio
WHAT'S INSIDE
The full toolbox
Checks rigid accessories, layered clothing, bodies, dynamic heads, emotes and animation packs, classic clothing and makeup; limits from Roblox's documentation and its own validation code
Fixes more than 60 one-click fixes, Make Ready and Fix All Safe
Export FBX and glTF with Studio's settings, textures, batch export
Clothing cage fitting, inner cage tucking, heatmap, weight transfer, loose skirts, cage brush, motion and pose tests
Bodies & heads attachments, R15 rig from parts, body cages, FACS auto-rig and pose authoring, ARKit to FACS
Animation IK/FK rig, retargeting from Mixamo, BVH and Rokoko, emotes, animation packs, R6, KeyframeSequence
Textures 61 materials, smart masks, decals and prints, trim sheets, colour variants, PBR baking, texel density
Workflow renders and turntables, quality score, Item Catalog, command line, Open Cloud uploads and versions, Roblox Studio companion plugin
Game assets GFX poses, FPS viewmodels and weapons, VFX meshes and flipbooks, hair from curves, terrain, .rbxm/.rbxmx import
Languages English, Ukrainian, Spanish and Brazilian Portuguese
REQUIREMENTS & SUPPORT
Questions? Message ARLN here on Superhive. Updates are included.
UGCLift is not made by, affiliated with or endorsed by Roblox Corporation. Roblox is a trademark of Roblox Corporation.