Convert equirectangular panoramas into 6 seamless skybox faces. Upload directly to Roblox.
These credentials are stored locally in your browser and never sent anywhere except to Roblox's API.
You need an equirectangular panorama image (2:1 ratio). You can find free HDRIs at Poly Haven or HDRI Haven. Download as JPG or PNG. The tool will cap face size at 1024px.
Click Choose file or drag and drop your image onto the page. The tool will automatically split it into 6 skybox faces (Right, Left, Front, Back, Up, Down) using the correct Roblox orientations.
You can click on any face name to download it individually, or click Export All to download all 6 faces at once.
To upload faces directly to Roblox, you need an API key:
skybox-upload)0.0.0.0/0 to allow all IPs (or restrict to your IP)Go to your Roblox profile page. Your User ID is the number in the URL:
https://www.roblox.com/users/10092447863/profile
Copy just the number and paste it in the Roblox User ID field.
After converting a panorama, click Upload to Roblox. Fill in your API Key and User ID (they are saved automatically for next time). The preset name is auto-filled from the filename.
The tool will upload all 6 faces one by one and generate a JSON preset with the asset IDs. Click the JSON block to copy it to your clipboard.
The generated JSON contains the rbxassetid:// URLs for each face. You can paste this into your skybox configuration. The format is:
bk -- SkyboxBk (Back)dn -- SkyboxDn (Down)ft -- SkyboxFt (Front)lf -- SkyboxLf (Left)rt -- SkyboxRt (Right)up -- SkyboxUp (Up)All your uploads are saved in the History tab so you can access them later.