3D File Converter (STL · OBJ · 3MF)

View STL, OBJ and 3MF files for 3D printing and modeling in 3D right in your browser, then convert and save them as STL or OBJ. Files are never uploaded to a server.

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Click to select a 3D file, or drag and drop it here

STL · OBJ · 3MF supported

📂 Browse 3D files

Load a file or drag it onto the viewer

Left-click: rotate · Right-click: pan · Wheel: zoom (mobile: one finger to rotate, two fingers to zoom and pan)

How to use

Add the STL, OBJ or 3MF file you want to convert to the upload area above, or drag it onto the viewer.
Rotate and zoom the model in the 3D viewer to check its shape.
Press the button for the format you want (STL or OBJ) to download the converted file.

Features

Supports conversions that make files compatible with 3D printer slicers, such as 3MF ➔ STL, OBJ ➔ STL and STL ➔ OBJ.
Everything is processed in your browser (WebGL), so your design files never leave your device.
Free to use on PC or mobile, with nothing to install.

Free 3D file converter – view and convert STL, OBJ and 3MF in your browser

When you use a 3D printer, the model file you received is sometimes in a format your slicer does not accept. You received a 3MF but need an STL, or you have to turn an OBJ into an STL. Installing heavy 3D software just to convert a file is a burden.

EasyCVT 3D File Converter is a free online tool that lets you view and convert STL, OBJ and 3MF files directly in your browser.

Supported formats

Input: STL, OBJ, 3MF
Output: STL, OBJ
Typical conversions: 3MF → STL, OBJ → STL, STL → OBJ

3D viewer

Before converting, you can rotate the model on a 3D screen and check it.

PC: left-click to rotate / right-click to pan / wheel to zoom
Mobile: one finger to rotate / two fingers to zoom and pan

It is also handy for previewing whether the file you received is the right model and whether its shape is intact.

How to use

Click to select a file, or drag and drop it onto the viewer.
Rotate and zoom the model in the 3D viewer to check it.
Press "Convert and download as STL" or "Convert and download as OBJ".

No worries about the security of your designs

A 3D design file is valuable work. The tool is based on WebGL, does all of its processing inside your browser, and states that files are not sent to a server. You can convert models you made yourself with peace of mind.

Who it is for

3D printing beginners, makers and workshop operators
Teachers running 3D printing classes at schools and academies
People who need to check a 3D file on a PC where they cannot install software