ImageToSTL.online is a free online image-to-STL converter for makers. Users do not need to install software and can directly convert PNG and JPG images into STL files usable for 3D printing in the browser.
In terms of use, it mainly treats flat images as height maps or contours, which is a common way to make models such as logo extrusions, reliefs, lithophanes, and keychains. The official website states that most img-to-STL tools promise to generate complete 3D models, but the meshes they actually provide cannot be printed, while this tool chooses to treat flat images as height maps or silhouettes to achieve more honest, printable results.
Main capabilities include: support for PNG and JPG input; the ability to generate types such as logo extrusions, reliefs, lithophanes, and keychains; and an optional AI Full 3D feature. The official website also provides pages for specific formats, such as PNG to STL, JPG to STL, logo to STL, or photo to STL.
In terms of usage, the tool loads and runs in the browser and is a free online converter. The official website emphasizes its privacy, calling it a "private image to STL converter," and says conversion is completed within the browser without needing to upload images to an external server. Specific operating steps, parameter options, and export settings are not yet provided in the materials.
Applicable scenarios include makers and 3D printing enthusiasts making logo products, relief decorations, lithophane gifts, and custom keychains. The official website mentions that makers, from logo extrusions to lithophane gifts, have shared why they like this free converter.
In terms of limitations, the materials do not state whether it is paid, the price, output precision, size limits, the maximum supported image resolution, or the specific effects or usage conditions of AI Full 3D; this information is not yet provided. The tool runs based on the browser, and the official website says conversion is completed within the browser to protect privacy, but actual performance may be affected by the device and browser, and specific technical details are not provided in the materials.
