F
Flip3D

STL → Image · Renderer

STL to JPG

Render an STL to a flat picture — a JPG, PNG or WebP you can drop into a listing, a README, a print queue or a spec sheet. Choose the camera angle, resolution and background, then download. Free and 100% local.

No model handy?

How it works

  • This is a renderer, not a mesh converter: the STL goes in, a raster image comes out. Nothing about the geometry is preserved in the file — it's a picture of the model.
  • Pick isometric, front, top or right. The camera frames the model's bounding sphere, so every angle comes out at the same scale.
  • Export up to 4096×4096. PNG and WebP keep a transparent background; JPG has no alpha channel, so it always gets a solid backdrop.
  • STL files store triangles only — no color, material or texture — so the render is a single shaded material. That's the format, not a loading fault.
  • It reads more than STL: drop an OBJ, GLB, 3MF, PLY, STEP, IGES, FBX or DAE and it renders those too.
STL Viewer
Open and inspect the model before rendering
3D Print Checker
Check watertightness, size & overhangs before printing
STL → OBJ
Need a mesh, not a picture? Convert instead
Image → STL
The other direction: turn a picture into a printable relief

Frequently asked questions

How do I convert an STL to a JPG?
Drop the .stl file above, pick a camera angle and resolution, then hit Download .jpg. The model is rendered in your browser with WebGL and saved straight to your device — no upload and no signup.
Can I get a PNG instead of a JPG?
Yes. Switch the image format to PNG (or WebP) before downloading. PNG and WebP also support a transparent background, which JPG cannot — JPEG has no alpha channel.
Is this a way to make an STL thumbnail?
Yes — that's the main use. Render at 512×512 or 1024×1024 with a transparent or light background and you have a thumbnail for a model listing, a wiki, a README or a print-farm queue.
Can I turn the JPG back into an STL?
Not the same model. A render throws away the 3D geometry — it is a flat picture. You can build a new relief from an image with the Image to STL tool, but that produces a heightmap, not the original mesh.
Why is my rendered STL all one color?
STL stores only triangle geometry. There is no color, material or texture data in the file, so every renderer shows it in a single shaded material. Convert to GLB or 3MF first if you need color to survive.
Does my STL file get uploaded anywhere?
No. There is no server and no upload. The file is parsed and rendered entirely on your device, and nothing is stored.
What resolution can I export?
Anything from 64 up to 4096 pixels per side, square or custom. There are one-click presets at 512², 1024², 2048² and 1920×1080. Very large sizes depend on your GPU's texture limit.

Reads STL, OBJ, GLB, 3MF, PLY, STEP, IGES, FBX, DAE — drop any of them and export a picture.