Free online PSD to STL converter

A slicer or 3D printer workflow may require an STL file when the original artwork exists only in Adobe Photoshop. The conversion interprets PSD pixels, transparency, or paths as height, outlines, and printable mesh geometry; Photoshop layers do not transfer as editable 3D parts.

PSD and STL formats

PSD is Adobe Photoshop’s native document format. It can contain raster image layers, masks, adjustment layers, text, Smart Objects, channels, and vector shape layers, and is used by graphic designers, photographers, and texture artists.

For 3D work, a PSD commonly supplies a grayscale height map, a transparency mask, or flat logo artwork for extrusion. A normal PSD is not a 3D model and does not contain the closed surface required for 3D printing.

STL is a triangular mesh format used by slicers, 3D printers, CAD applications, and mesh-repair tools. It stores surface geometry only: it does not retain Photoshop layers, textures, materials, colors, object hierarchy, or reliable unit information.

An STL intended for printing should describe a closed, manifold solid with adequate wall thickness. Open edges, intersecting shells, internal faces, and zero-thickness surfaces can cause slicing or printing failures.

Convert a PSD to STL

Use the converter on 101convert.com to create an STL without installing software. Before uploading, prepare the PSD so its visible content clearly represents the geometry that should be produced:

1. Open the PSD in Photoshop and hide layers that should not become part of the model. Crop the canvas to the required artwork boundaries.
2. For a raised or recessed relief, use grayscale brightness as height information: black represents the lowest level and white the highest. Flatten unneeded effects and export a lossless working image, such as heightmap.png, with File → Export → Export As.
3. For a logo, icon, or lettering, create clean high-contrast shapes and remove anti-aliased specks, shadows, and accidental transparent pixels. Distinct solid regions produce cleaner extruded edges than photographs or gradients.
4. Upload the PSD to 101convert.com, select STL as the output format, and download the generated mesh. Check the result in a slicer before printing.
5. Set the final dimensions and verify wall thickness in the slicer or a mesh editor. Because STL coordinates have no inherent unit, confirm that the model is interpreted in millimetres rather than inches or another scale.

Build a controlled relief in Blender

Automatic conversion is suitable for simple artwork. For exact height, base thickness, or mesh cleanup, export the PSD artwork as PNG and create the STL in Blender:

1. Create a plane, scale it to the required width and height, and subdivide it enough to represent the image detail.
2. Create an image texture from heightmap.png. Add a Displace modifier to the plane, select that texture, and adjust modifier strength and midlevel to set the relief height.
3. Add a Solidify modifier to create a base. Set a base thickness appropriate for the printing process, then apply the modifiers when the geometry is correct.
4. Set Blender units to metric, enter the intended dimensions, and use Object → Apply → Scale before export.
5. Inspect for open edges and non-manifold geometry. Blender’s mesh selection and cleanup tools, or a slicer’s repair function, can identify common faults.
6. Select the finished object and export it through File → Export → Stl. Enable Selection Only if the Blender scene contains lights, reference objects, or other meshes.

For flat logos and text, vector outlines usually produce better results than a pixel-based height map. Trace or redraw the artwork in a vector editor such as Inkscape or Adobe Illustrator, save as SVG, import it into Blender, extrude the curves, convert to a mesh if necessary, and export the closed solid as STL.

Quality and compatibility limits

A grayscale image creates a relief, not a complete object with undercuts, hidden surfaces, or separate moving parts. Smooth gray transitions become sloped geometry; use discrete grayscale levels or vector shapes when the design needs vertical walls.

Image resolution and mesh density both limit detail. Too few subdivisions create faceted curves and stepped edges, while excessive subdivisions produce large STL files without improving printer-visible detail.

Handle transparency deliberately. Transparent areas may be treated as black, empty space, or unwanted low geometry depending on the conversion method; use a clean mask or a separate outline when holes are required.

STL does not reliably carry color or texture data. A colored PSD must be split into separate printable meshes or converted into distinct geometric regions for multicolor printing. Fine lines, small holes, and embossed text must also meet the minimum feature size supported by the printer, nozzle, or resin process.