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Glintmake Image to STL Converter

Turn a PNG or JPG into a relief, an extruded logo or a lithophane STL, built in your browser

Glintmake Image to STL Converter is a free browser tool for turning a logo or drawing into a raised plaque or cutout. Free, no sign-up and no limit. Other Glintmake tools sell one-off packs, but this one does not. Exports STL. Last checked 30 October 2026.

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At a glance

Price: Free, no sign-up and no limit. Other Glintmake tools sell one-off packs, but this one does not.
Runs on: Browser
Exports: STL
Multicolor: No, single color
Account: Not needed
Open source: No
Skill level: Beginner: fill in a form
Best for: Turning a logo or drawing into a raised plaque or cutout
Selling prints: Allowed Glintmake confirmed (October 2026) that people may sell prints made from the STL files it creates, as long as they have the rights to the image they upload.
How we checked: Made and downloaded a file Loaded a test image without signing in and downloaded a valid binary STL in all three modes (relief and lithophane 39,510 triangles, extrude 8,732)
Checked by: Mike Janssen
Last checked: 30 October 2026

Open generator

Sources: Image to STL Converter, Glintmake terms (checked 30 October 2026)

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About this generator

Glintmake's Image to STL Converter turns a PNG, JPG or WebP into a printable STL in one of three modes. Relief makes brightness into height, for plaques and textured tiles. Extrude raises everything darker than a threshold to one height with straight walls, for logos, text and silhouettes; set the base to 0 to get the shape alone. Lithophane makes a thin plate where dark areas are thicker, to hold up to a light.

You set the width in millimeters, the raised height, the base thickness and the detail (60 to 300 points across the long side), with an invert toggle and a 3D preview that updates as you change things. The download is a closed binary STL in millimeters. Everything runs in the browser, so there is no upload, no sign-up and no limit.

It makes heightmaps from one picture, so it cannot build a full 3D object with a back and sides. Glintmake is a small site of AI tools, some of which sell one-off packs; this converter is free.