Transform your SketchUp 3D models into print-ready STL files in seconds — right inside your browser. Zero uploads. Total privacy.
Everything you need to convert SketchUp files confidently — no account, no installs, no waiting.
All conversion happens locally in your browser using WebAssembly. Your 3D models never touch our servers.
Optimised WASM engine processes even complex multi-component SketchUp assemblies in seconds.
Choose Binary or ASCII STL, set unit scale, and control mesh quality to match your 3D printer's requirements.
Handles SKP files from SketchUp 6 through SketchUp 2024 — legacy and current files welcome.
Automatically checks for non-manifold geometry, reversed faces, and degenerate triangles before export.
Fully responsive interface works on phones, tablets, and desktops. Convert on the go from any device.
Four simple steps from SketchUp model to printable STL file.
Drag-and-drop your SketchUp file onto the converter, or click to browse from your device storage.
Select Binary or ASCII STL format, adjust unit scale, and set mesh quality to suit your slicer or workflow.
Hit the Convert button. The browser processes your model locally with real-time progress feedback.
Once done, download your STL file instantly — ready for Cura, PrusaSlicer, Chitubox, or any CAD tool.
If you've ever designed an architectural layout, a custom furniture piece, or a product prototype in SketchUp, you've likely ended up with a .skp file — the native format of Trimble's widely adopted 3D modelling software. While SKP excels at intuitive design and fast iteration, taking your model to the physical world through a 3D printer means converting it to a format that printing software actually understands. That's where SKP to STL conversion becomes essential.
The STL file format — short for Standard Tessellation Language (also known as Stereolithography) — is the de facto standard for 3D printing. Unlike SKP, which preserves layers, scenes, textures, and component hierarchies, STL reduces a model to a surface mesh of triangular facets. This simplicity is its strength: virtually every FDM, SLA, SLS, and DLP printer on the market accepts STL files, as do slicer tools like Cura, PrusaSlicer, and Chitubox.
So what exactly is a SKP file? It is a proprietary 3D scene container created by SketchUp (now developed and maintained by Trimble Inc.). The file encapsulates geometry defined by edges and faces, grouped into components and groups, along with material definitions, scene views, shadow settings, and metadata. SKP files are not natively understood by 3D printing pipelines, which is why a dedicated SKP to STL converter is needed.
The conversion process extracts all visible solid geometry from the SKP model and tessellates it — that is, it breaks curved or complex surfaces into a mesh of triangles. The resulting STL file can be either in Binary format (compact, machine-readable, smaller file size) or ASCII format (human-readable text, useful for debugging or inspection). For most 3D printing workflows, Binary STL is the better choice due to its smaller footprint.
One common challenge when converting SKP files is unit scale. SketchUp's native unit is often inches by default, while most 3D printers work in millimetres. Our converter lets you specify the output scale so your physical print matches the design dimensions exactly — no surprise size mismatches when the print comes out.
Mesh quality is another important control. A higher mesh quality setting produces more triangles, which means smoother curves and finer details — but larger file sizes. For architectural showcase models, high quality is recommended. For mechanical parts with mostly flat faces, medium or low quality delivers the same accuracy with less overhead for your slicer to process.
Our tool processes everything client-side in your browser using WebAssembly. This means your confidential design files never leave your machine — a critical consideration for proprietary product designs, unreleased architectural projects, or any model that shouldn't be stored on third-party servers. Simply upload, configure, convert, and download your STL file in one seamless, private session.
Whether you're a product designer validating a concept, an architect producing a scale model, or a hobbyist printing a custom part, this free online SKP to STL converter gives you the speed, privacy, and control you need to bridge the gap between SketchUp and your 3D printer.
Common questions about converting SKP files to STL format.
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