Oct 8, 2026
Best Free Online 3D Viewers in 2026: GLB, STL, OBJ, FBX
Six free ways to open a 3D file without installing much, compared on formats, upload, sign-in and limits, including the TRELLIS.2 browser viewer.
Export and download TRELLIS.2 GLB | Credits vs free viewer
The browser 3D viewer is free. After a successful TRELLIS.2 job you can download that GLB; only new generations spend credits, and failures refund them.
What stays free
The 3D viewer is a keep-and-inspect tool. You can rotate, zoom, and check a finished mesh without spending credits.
After a successful generation, download the GLB from that job. The download is the output of work you already paid for with credits (or a signup trial). It is not a second paywall on an empty canvas.
When credits are used
Credits are spent when you start a new generation, not when you look at a finished model.
Typical flow:
- Upload one clear image in the image-to-3D generator.
- Confirm the displayed credit cost before you submit.
- Wait for the tracked job. Failed or canceled jobs return reserved credits.
- Inspect the mesh, then download the GLB if the draft is usable.
- Convert formats with the free converter if you need STL, OBJ, or PLY.
If the balance is too low for the selected resolution, the generator opens pricing with the return path back to the tool. Do not expect a toast-only dead end.
What "keep this GLB" means
"Keep" means: the file is yours to download after success. Extra 1024/1536 runs, retries with a new image, or another object each start a new billed job.
Paid credits are sized by resolution. A 512 evaluation uses 150 credits. They are not a monthly allowance unless you buy a subscription.
Start from a result, not a plan table
If you already have a mesh on screen, download it first. Buy more credits only when you need another generation.
TRELLIS.2 Image-to-3D Blog
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View an STL file online, orbit the triangles, and see why the preview has no color and no print profile.
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How to Turn a Photo into a 3D Model
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Trellis 2 Quickstart: Your First Image-to-3D Draft
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