View STL and OBJ 3D models
Rotate STL and OBJ 3D-printing models in browser 3D. Nothing to install.
Drop a folder or files here
JPG · PNG · WebP · GIF · BMP · AVIF · SVG · HEIC · PSD · AI · TIFF · camera RAW · PDF · HWP · Word · PPT · Excel · DWG/DXF · MP4/WebM/MOV/MKV/AVI/WMV · MP3/WAV/WMA/AIFF · TXT/MD/CSV/JSON/HTML — subfolders included
This browser doesn't support the folder-open dialog, so the standard folder picker is used. Files are read only on your device.
Viewer pages by format
Popular formats have their own page. Whichever page you are on, files of any other supported format open just the same.
- View HEIC photosHEIC·HEIF·HIF
- View PSD filesPSD·PSB
- View AI filesAI
- View TIFF filesTIF·TIFF
- View camera RAW photosCR2·CR3·CRW·NEF…
- Play MKVMKV
- Play AVI and DivXAVI·DIVX
- Play RMVB and RMRM·RMVB
- Play WMVWMV·ASF
- Play FLVFLV
- Play TS and M2TSTS·M2TS·MTS
- Play WMAWMA
- Play APE and lossless audioAPE·WV·TTA·MPC
- Open EML and MSG emailEML·MSG
- Read EPUB ebooksEPUB
- View Jupyter notebooks (ipynb)IPYNB
- Open legacy Word (.doc)DOC
- View DICOM medical imagesDCM·DICOM·DIC
- View STL and OBJ 3D modelsSTL·OBJ
- Open ZIP and TAR archivesZIP·TAR·TGZ·GZ…
- Read CBZ comicsCBZ
- View certificate files (PEM, CRT, CER, DER)PEM·CRT·CER·DER…
- View SRT and SMI subtitlesSRT·VTT·SMI·SAMI…
- Preview font files (TTF, OTF, WOFF)TTF·OTF·WOFF·WOFF2…
Word, PowerPoint, Excel, HWP, and CAD have their own document viewer pages. Full file viewer →
STL and OBJ are the formats exchanged in 3D printing and modeling, yet viewing them means installing a slicer or 3D app. This page draws STL and OBJ in browser 3D (WebGL) so you can rotate them with the mouse — handy for a model from Thingiverse or a part file a supplier sent.
How to use it
- 1Click 'Choose STL files' or drop a model folder onto the page (OBJ mixed in is fine). 3D thumbnails appear in the grid.
- 2Click a model to open the 3D view. Drag to rotate, wheel or pinch to zoom, double-click to reset.
- 3The info bar shows the triangle count; 🖨 prints the current view.
What it shows
STL is parsed in both binary and ASCII (told apart by the size formula), and OBJ vertices and faces are read (polygons split into triangles, negative indices supported). WebGL draws it with flat shading in a single color, double-sided so back faces are visible too. The model starts centered and fitted to the view.
Files are read inside the browser only and never sent anywhere. Close the tab and nothing remains.
Limits
Colors, materials, and textures (OBJ's MTL) aren't read — shape only. Up to 2 million triangles are drawn; larger models show the first part with a notice. GLB, GLTF, 3MF, and STEP aren't supported yet. No measuring, sectioning, or slicing.
Good for
Checking what an STL is without a slicer, reviewing a part's shape before ordering a print, and skimming 3D scan results.
Frequently asked questions
Can I send it to a 3D printer from here?+
No — it's view-only. Print from a slicer such as Cura or PrusaSlicer, and use this page to pick the right file.
The model looks dark or inside-out.+
Files with flipped normals may show the back-face color, but the shape is right. Because both sides are drawn, nothing looks like a hole. Run your slicer's repair before printing.
My OBJ has no colors.+
MTL and textures aren't read. The viewer is for checking shape, so it draws a single color.
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