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Merge STL File to STL for Free

Effortlessly convert your STL files to STL for 3D printing with our powerful online 3D file conversion tool. No downloads or installations required.
With our free STL image merging tool, you can combine multiple STL files into a single STL file.
STL
3D model
3DM
3DS
3MF
AC
ACC
AMF
ASE
B3D
B3DM
BREP
BRP
BVH
COB
COLLADA
DAE
DRACO
DXF
FBX
GLB
GLB 2.0
GLTF
GLTF 2.0
HMP
I3DM
IFC
IGES
IGS
IQM
IRR
KMZ
LWO
MD2
MD5
MDC
MDD
MDL
LDraw
MS3D
NFF
OBJ
OFF
OGEX
PDB
PLY
PMD
PMX
PRWM
Q3O
RAW
IRRMESH
SIB
STEP
STL
STP
TER
USDZ
VTK
VTP
VRML
X
X3D
XGL
Image
AVIF
BMP
DDS
EXR
GIF
HDR
HEIC
HEIF
JFIF
JPEG
JPG
KTX2
PNG
SVG
TGA
TIFF
WEBP
to
STL
Upload your STL file
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Download 
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Afraid of data leaks when uploading files? Need to batch convert STL to STL?
ConvUtils has got you covered.
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How to Merge STL Files

Upload your STL File

Click the "Upload your STL File" button and select the STL files you want to combine.

Select your Option

Set the layout and other options, and click the "Merge" button to merge your STL files.

Download your merged file

Once completed, click the "Download" button to save the merged STL file to your personal computer.

FAQ

How can I merge my STL Files?

First, click the "Upload your File" button and select the STL file you want to merge. Set the layout and other options, and click the "Merge" button to merge your STL files. After the conversion is complete, you can download your merged STL file.

How long does it take to merge my STL Files?

We strive to merge your STL files as quickly as possible, typically within 5 seconds. However, larger files or multiple STLs may take longer, so we appreciate your patience.

Is it safe to merge my STL files using 3dpea.com?

Of course! We will not store the files you upload, and the download link will expire when the current webpage is refreshed or the current browser application is closed.

Can I merge my STL files on Windows, Linux, Android, iOS, or Mac OS?

Yes. 3DPEA STL merge tool can run online on any system with modern internet, without the need to download or install any professional software.

From STL to STL file format

Extension
STL
Full name
Standard Triangle Language
Type
3D model
Network transmission format
application/vnd.ms-pki.stl
Data format
Text & Binary
Open with
STL Viewer
Description

The STL file format is a file format used to describe three-dimensional objects. It consists of a series of triangular faces, each face composed of three vertices and a normal vector. It is commonly used in 3D printing and computer-aided design (CAD) software, where three-dimensional models can be exported as STL files for further processing and manufacturing. The STL file format is simple and easy to use, making it widely used in various fields.

Extension
STL
Full name
Standard Triangle Language
Type
3D model
Network transmission format
application/vnd.ms-pki.stl
Data format
Text & Binary
Open with
STL Viewer
Description

The STL file format is a file format used to describe three-dimensional objects. It consists of a series of triangular faces, each face composed of three vertices and a normal vector. It is commonly used in 3D printing and computer-aided design (CAD) software, where three-dimensional models can be exported as STL files for further processing and manufacturing. The STL file format is simple and easy to use, making it widely used in various fields.