Convert STP to WebP
Convert STP to WebP online: the 3D part drawn as a see-through isometric wireframe, saved as a compact WebP image. Free, no sign-up.
Drop your STP files here
Up to 50MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your STP files
Drag and drop or select STP files from your device. You can upload multiple files at once.
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Configure Output
Choose any available WebP output options, then start the conversion.
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Download WebP files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert STP to WebP?
STP is the common .stp extension of STEP (ISO 10303), the standard format for exchanging solid 3D models between CAD and manufacturing software. Every edge of the model, front and back, is projected into an isometric view and drawn as dark lines on a white background, giving a clear wireframe of the part.
WebP stores the rendered image in a modern, efficient format, so the file is noticeably smaller than an equivalent PNG or JPG.
Frequently Asked Questions
How do I convert STP to WebP?
Drop your STP file above and press Convert. Our servers open the STP model with FreeCAD, trace every edge into an isometric line drawing, and render it through a PDF page into the image you chose. The result is saved as a compact WebP image, ready to download.
Are hidden edges of the STP part shown in the WebP?
Yes. The drawing is a see-through wireframe, so edges at the back of the part are drawn along with the visible ones, which reveals holes and pockets on every side.
Does a STP assembly with several bodies come through in the WebP?
Yes. FreeCAD reads the file's complete shape, so every body it contains is drawn together in the same isometric view.
What happens when a STP file fills several WebP pages?
Each page is rendered at 144 dpi and saved as its own WebP image, named page-1, page-2 and so on, and they download together as one ZIP. A single page downloads as one WebP file.
How much smaller is the WebP from a STP file?
WebP typically produces files around a quarter to a third smaller than JPG at similar visual quality, and far smaller than PNG, while text and lines stay clear.
Is my .stp file kept private?
Your file is uploaded over an encrypted connection, converted on our servers and deleted automatically within 24 hours. We never read, share or keep your files, and no account is needed.