Does this STL viewer upload my model?
No. The viewer runs in your browser and the model stays on your device.
Free STL Viewer
Inspect STL geometry locally before slicing, 3D printing, conversion, or model handoff.
Browser-only, private
Inspect STL geometry locally before slicing, printing, or conversion.
How to inspect an STL in the browser
Open, orbit and check the mesh before the file goes to a slicer or a print queue.
Open the STL
Choose an STL file up to 50 MB. The viewer also opens GLB, OBJ and FBX, and the format filter can stay on all supported formats.
Orbit, pan and zoom
Drag with the mouse or use touch gestures to look at the silhouette, hollow areas, thin walls and stray floating shells from every side.
Check scale and orientation
STL files do not label their unit, so confirm the import scale in your slicer and compare the part against a dimension you already know.
Move the file on
Viewing is a check, not an edit: once the geometry reads correctly, continue in the slicer or converter you actually produce from.
STL viewer questions
1 2 Which formats can I open?
GLB, OBJ, STL and FBX. Leave the viewer format on all supported formats to open any of them.
3 Why does an STL look plain and untextured?
STL keeps geometry only, without color, texture or PBR material data, so the viewer renders one untextured surface.
4 How large can the model be?
Up to 50 MB per file.
5 Does the viewer work on a phone or tablet?
Yes. Touch gestures orbit, pan and zoom, as long as the device supports WebGL and has enough memory for the mesh.
Quick tips
- STL keeps geometry only, so do not expect color, texture, or PBR material preview.
- Use STL viewing as a quick geometry check before slicer import.
More tools
Free 3D Model Viewer
View GLB, OBJ, STL, and FBX model files locally in your browser before review, import, or delivery.
Free GLB Viewer
Open GLB files locally with orbit controls before 3D review, import, or conversion.
Free OBJ Viewer
Preview OBJ mesh files locally before cleanup, import, conversion, or handoff.
Free FBX Viewer
Preview FBX files locally before animation review, DCC import, or asset delivery.
Keep reading
- image to 3d: Gaussian PLY Output | TripoSplat GuideSee the clicks behind “image to 3d” on a rival page, then download a TripoSplat Gaussian splat as PLY or SPLAT. Rival clicks are not our traffic today.
- Turn One Photo into a Gaussian Splat File | TripoSplatUpload one clear photo when you want to orbit the subject. TripoSplat downloads a Gaussian splat as PLY or SPLAT, not a printable mesh. Open the generator next.
- Image to 3D Without a Local GPU | TripoSplat GuideThe generator page says you do not install a local GPU. TripoSplat turns one image into a Gaussian splat and lets you download PLY or SPLAT. Start on one image.
- A Gaussian Splat Is Not a Printable Mesh | TripoSplatA PLY or SPLAT splat is for turning a subject around in the browser. It is not an STL solid. Read this before you send the file to a printer. Not a solid part.
- Open a PLY or SPLAT File in the Browser | TripoSplatIf you already have a PLY or SPLAT file, open the free viewer. That path does not spend a generation credit. Use the generator only when you still have a photo.
- Questions Before You Buy Image-to-3D Credits | TripoSplatBuy credits only after you know the download is a Gaussian splat. This page lists the questions to ask. Prices and pack sizes stay on the pricing page.
- Photo to 3D File: a Splat Is Not Always a Mesh | TripoSplatThe phrase from a photo to a 3D model is ambiguous. TripoSplat publishes a Gaussian splat as PLY or SPLAT. A mesh for editing or printing is a different file.
- One Lighter 3D Preview Before You Create an AccountThe generator says the first run is a lighter preview, one per visitor, with no sign-in. Later runs stay in account history. This page quotes no credit grant.
- Frame the Subject Before Image-to-3D | TripoSplat GuideA small subject in a busy photo is a common reason a splat looks empty. Crop so the subject fills the frame, then upload that one image to the generator.
- View a File You Have, or Generate a New Splat | TripoSplatUse the free PLY viewer when the file already exists. Use the generator when you only have a photo. This page keeps those two jobs on two different buttons.
- Ask If Image to 3D Means a Splat or a Mesh | TripoSplatWhen you ask an assistant for image to 3D, ask what file comes back. TripoSplat's published answer is a Gaussian splat as PLY or SPLAT, not a print-ready mesh.
- FBX Viewer Online: Open an FBX File Free | TripoSplatOpen an FBX file online with no software and no upload. Orbit, pan and zoom up to 50 MB in your browser, see why an FBX will not open, and when to use Blender.
- PNG to WebP Without Losing Transparency | TripoSplatYes, WebP keeps PNG transparency. Convert a transparent PNG to WebP in your browser with no upload, compare the file sizes, and see when to keep the PNG.
- Pixal3D Complete Guide: Open-Source Image-to-3D GenerationAn independent guide to the third-party Pixal3D model, including local setup, input preparation, parameter tuning, and Blender handoff. Read the full guide now.
- Pixal3D vs Trellis 2 (Pixel3D): Image-to-3D ComparisonPixal3D (also typed Pixel3D or Pixel 3D) vs TRELLIS.2: source-verified architecture, outputs, hardware claims, and a test protocol. Read the comparison.
- Best Image-to-3D AI Generators in 2026: 12 Tools ComparedCompare 12 image-to-3D tools, including Trellis 2, Pixal3D, TripoSR, CRM, Unique3D, and Wonder3D, in one 2026 roundup. Read it to choose a 3D AI generator.
- Splat vs Mesh Cost Math for One Photo | TripoSplatChoose splat for PLY/SPLAT orbit checks; choose mesh when topology is next. TripoSplat Single is $9.9 / 250 credits — about four default Gaussian jobs.
- Meshy 3D Agent vs Pay-Per-Splat: Chat Is Extra | TripoSplatMeshy Agent chat→2D→3D vs TripoSplat pay-per-accepted PLY/SPLAT. Default Gaussian ~48–72 credits; Single $9.9 / 250 credits. Failed jobs return credits.
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