ImgToSTL logoImgToSTL

Image to STL Converter

Turn a picture, photo, logo or sketch into a watertight STL, ready to slice. Free 3D preview, 2 credits per STL, and 10 free credits when you sign up.

Text to STL
Style
Samples
3D previewSample
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60 mm
2 mm
Advanced settings
2 mm
Detail

Runs in your browser. Your image is never uploaded.

  • Free preview, 2 credits per STL
  • Watertight STL for any slicer
  • Real sizes in millimeters

3D SHOWCASE

Explore every angle in 3D

Choose a model to rotate, zoom, and explore its shape and materials.

How it works

How to convert an image to STL

No CAD and no mesh repair. The file you download is the file you slice.

Original dog portrait01 / IMAGE

Upload

Any photo, picture, logo, drawing or screenshot. A clean background gives the best result.

Dog portrait converted into a lithophane preview02 / PREVIEW
Size Depth Base

Tune

Set the size in millimeters, the depth and the base. The preview updates while you drag.

Dog panel STL model render03 / STL MODEL
dog-panel.stlReady to slice

Print

Download a watertight STL and open it in Bambu Studio, PrusaSlicer, Cura or OrcaSlicer.

Image to STL

What is image to STL conversion?

It turns a flat picture into a 3D mesh saved as an STL, the file every 3D printing slicer reads. Brightness or outline becomes height, so the result is a solid you can print.

Colored fox figurine 3D model turning into a white PLA 3D print, layer by layer
From a colored 3D model to a white PLA print, layer by layer. The STL holds the shape; your printer adds the layers.

  • Relief

    Raises the picture into a height map on a flat base. Best for logos, badges, signs and line art.

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  • Lithophane

    Turns a photo into a thin panel that reveals the picture when a light shines through it.

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  • Silhouette

    Cuts the subject out at one even thickness and keeps the holes. Good for cake toppers, stencils and outlines.

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  • AI 3D model

    Builds a full model with a back side from one photo, for figurines and props. Opening soon.

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“The STL format is still often described as the de facto standard for 3D printing and rapid prototyping.”

Library of Congress, STL (STereoLithography) File Format Family

Further reading:STL (file format) (Wikipedia)Lithophane (Wikipedia)3MF Specification (3MF Consortium)

Features

Why use this image to STL converter

Most AI 3D tools stop at a nice render. ImgToSTL gives you a file that slices cleanly.

Watertight by default

Closed, manifold meshes with outward normals. No holes for your slicer to flag.

Real sizes in millimeters

Set the longest side and that is what lands on the build plate.

Live 3D preview

See the model on a build plate while you drag the sliders, before anything is downloaded.

Your image stays on your device

Relief, lithophane and silhouette run in your browser. Your image is never uploaded, and the preview is free.

Opens in every slicer

Binary STL for Bambu Studio, PrusaSlicer, Cura and OrcaSlicer.

Full 3D from a single photo

For things with a back side: figurines, busts, toys and props. AI generation opens soon.

More tools

More STL tools

Each page runs the same converter with defaults and advice for one kind of print.

Lithophane makerPhoto panels that glow when backlitPNG to STLTransparent logos and iconsLogo to STLKeychains, badges and signsImage to 3D modelFull AI models from one photoSTL converterAny format to and from STLSTL viewerSize, volume, watertight check
Browse all tools 41 tools

Image to STL

Lithophane makerPhoto panels that glow when backlitPNG to STLTransparent logos and iconsJPG to STLPhotos to lithophanes and reliefsLogo to STLKeychains, badges and signsSilhouette to STLCut-outs, cake toppers, stencilsPixel Art to STLSprites to block keychains and magnets

Make 3D models

Image to 3D modelFull AI models from one photoPhoto to 3D printLamps, plaques and figurines2D to 3DHeight maps, outlines and AIText to STL3D letters and name plates

Convert to STL

STL converterAny format to and from STL3MF to STLBambu Studio, Prusa and Cura filesOBJ to STLBlender and CAD exportsGLB to STLAI 3D models and glTFglTF to STLSketchfab and game models, ready to printFBX to STLGame and character modelsPLY to STL3D scans and photogrammetryDXF to STLExtrude 2D outlines into solidsSTEP to STLCAD parts and assemblies to STLIGES to STLIGS surfaces and solids to STL

More converters

STL to 3MFPack parts for Bambu and PrusaSTL to OBJFor Blender and game enginesSTL to GLBFor web viewers and ARGLB to OBJGeometry out of glTF scenesglTF to OBJglTF scenes for any 3D programOBJ to GLBOne binary file for the webOBJ to FBXFor Unity, Unreal and BlenderSTL to FBXPrint models into game enginesGLB to FBXglTF scenes for Unity and UnrealGLB compressorMeshopt, Draco and smaller textures

View and measure

3D model viewerGLB, STL, OBJ, FBX, PLY and 3MFSTL viewerSize, volume, watertight check3MF viewerSlicer projects without a slicerGLB viewerWith textures, print checkglTF viewerEmbedded .gltf, materials, print checkOBJ viewerWavefront files in the browserFBX viewerMaterials, size, print checkSTEP viewerSTEP and STP files, size, print checkIGES viewerOpen IGS and IGES CAD filesDXF viewerLayers, real size, SVG exportScale calculatorModel scales and slicer %
Plans

Pricing

Previews are free and new accounts get 10 credits. Each image to STL download uses 2 credits, AI 3D models 25 to 35. Converters and viewers stay free.

Basic

$12.9/month
$15.9

Perfect for occasional prints

  • 300 credits per month, about 150 STL downloads
  • High-quality STL, OBJ and GLB downloads
  • 3D model preview
  • Standard processing speed
  • Email support
Most popular

Advanced

$16.9/month
$19.9

Perfect for daily use

  • 600 credits per month, about 300 STL downloads
  • High-quality STL, OBJ and GLB downloads
  • 3D model preview
  • Priority processing speed
  • Email support

Professional

$26.9/month
$29.9

Perfect for print shops and heavy use

  • 1,000 credits per month, about 500 STL downloads
  • High-quality STL, OBJ and GLB downloads
  • 3D model preview
  • Fastest processing speed
  • Priority email support
FAQ

Image to STL questions

Answers about price, image types, common print problems and privacy.

Is ImgToSTL free?
Free to try. The 3D preview is free and needs no account. Each image to STL download costs 2 credits, and new accounts get 10 free credits (5 STLs), no card needed. File converters, viewers and Text to STL are free. AI 3D models will cost 25 to 35 credits each when they open.
How do I convert an image or picture to STL?
Upload a PNG, JPG or any other picture, choose Relief, Lithophane or Silhouette, set the size in millimeters and download the STL. Photo to STL takes seconds, and the file opens in any slicer.
Which image formats can I convert to STL?
PNG, JPG and WebP images up to 10 MB. For logos, a PNG with a transparent background works best, because transparent areas stay flat.
Which images work best?
For reliefs, high-contrast logos and line art. For lithophanes, well-lit photos with clear faces. For AI models, one object on a plain background, shot from the front.
What is the difference between a relief and an AI 3D model?
A relief is a raised surface built from the brightness of your image, with a flat back. An AI model is the whole object, sides and back included, so it prints as a figurine.
Will the STL print without repairs?
Relief and lithophane files are closed, manifold meshes with a flat bottom, so slicers accept them as they are.
Why is my STL just a flat slab?
The image has little contrast, so every pixel maps to about the same height. Raise the contrast first, or switch to Silhouette and move the cut-off until the shape appears.
Why does my lithophane look washed out?
The thickness range is too narrow, so every area lets through similar light. Use about 0.8 mm minimum and 3 mm maximum, and print in white PLA at 100% infill.
Why did the background print as a solid block?
Relief raises dark pixels, so a dark background rises too, and a JPG has no transparency to mark it as background. Use a PNG with a transparent background, lighten the background, or switch to Silhouette.
Do you keep my images?
Images you turn into a relief, lithophane or silhouette never leave your device. A download only sends a credit check to our server. Images you send for AI generation are used only to build your model.
Can I sell what I print?
Yes. Models you create are yours to print and sell. Please only upload images you have the right to use.

Your next print starts with a picture

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