STEP File Viewer Software

10 Best STEP File Viewer Software You Can Use

Well, the standard for exchanging product data and/or STEP files is an ISO standard for exchanging three-dimensional data. It can be used to design 3D diagrams. Because it is compatible with the *.STP and *, we can zoom in, rotate, move, and view the 3D diagram using a STEP file viewer. STEP file formats can be converted to DWG, OBJ, DXF, and STL.

STEP Files: What Are They?

STEP file is a computer-aided design (CAD) and data interchange format. It is straightforward to read because it follows the ASCII format. For 3D graphics, as defined by ISO 10303-21, the STP file extension is used. A STEP file may also be known as a p21 or a STEP physical file. It is compatible with a number of programmes, including IMSI TurboCAD, Autodesk Fusion 360, and Dassault System Solid Works.

Why Use STEP Viewers?

None of the CAD systems are the same. Because of this, it is difficult for users in the CAD industry to exchange 3D diagrams and models. This issue is solved by the software STEP File Viewer. The.STP and.STEP file extensions allow it to open files. It is used for the following reasons:

1- STEP is used by the global data exchange programme.

2- All well-known computer-aided design (CAD) software is compatible with this platform.

3- Because it is based on math, it can be put into CAM software.

4- A neutral file format can be read by any reputable CAD software.

The.STEP File Viewer’s Differences

The.STEP and.STP file types are not very different. The user does, however, download or export the file in a variety of formats. However, any STP file viewer can open.STEP and.STP files.

Which STEP File Opening Software Is Available?

CATIA is linked to the STP file. The file can be opened by any commercial CAD software. There are several online options for opening STEP files. Several options * are available in addition to the online STEP viewer. STP file viewer types include:

1 – Autodesk Fusion 360. 

2 – IMSI TurboCAD Deluxe v7. 

3 – IMSI TurboCAD Deluxe 20. 

4 – CADSoftTools ABViewer. 

5 – Dassault Systemes CATIA. 

6 – FreeCAD. 

7  STEP Tools STEP File Browser. 

8 – ideaMK STP Viewer.

How To Convert STP To PDF/DWG Easily?

None of the software supports STEP to PDF conversion.

Features of the STP Viewer

STP file file viewer and the free STP viewer share the following features:

1 – Users can see a 2D view of all four sides of a 3D object.

2 – The tree view of all 3D item markers is excellent.

3 – Fantastic dynamic zoom.

4 – Using the tool box, perform a dynamic rotation.

5 – Users can alter a 3D object’s shade and colour.

System Requirement

OS Windows Server 2003 & 2008; Windows XP, Vista, 7,8, & 10

Microsoft .NET Framework 2.0 (included in Windows XP SP2, Windows 7, Vista).

Online Any Platform with a reliable web browser.

I Need a STEP Viewer, Why?

STP files require a viewer for engineering students and professionals. To view every detail of a 3D object when you open it, you need a STEP file viewer. The 3D object can be viewed independently using a tree view. The STEP file view enables you to view the 3D object as it is. The online STP viewer makes it easier to collect a lot of templates and images to make things look more real.

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STEP Limitations

1 – A STEP file is a mixture of geometry, curve, solid, and surface; therefore, if the software cannot read the geometry of a STEP file, it may cause issues.

2 – The designer needs to be more careful to ensure that the geometry is designed correctly to support a different file format.

Best STEP File Viewer Software 10

We tried to manage 10 best STEP File Viewer Online Free options for you. Please keep in mind that not everyone is free all the time. A certain amount of time is allotted for using the Free STEP File Viewer. However, there is some free software available.


AUTODESK 123D DESIGN is an easy-to-use STEP viewer software. Both novices and experts can use it to meet their design needs. This excellent software lets you resize, scale, pan, zoom, move, rotate, align, orbit, and fit images, just like other STP viewers.

123D DESIGN Insight from AUTODESK

1 – Both 2D and 3D models can be exported using the STP file viewer in AUTODESK 123D DESIGN.

2 – You can export 2D as SVG, DXF, or DWG files, and 3D as X3D, STL, SAT, DWG, or DWG file.

3 – It supports combining, grouping, snapping, and patterns.

4 – Several building parameters, such as extrude, sweep, and revolve, can be applied.

5 – It is one of the best STP file viewers for engineering and manufacturing.

2. Sharecad.Org is one of the best free online CAD viewers that can open many STEP files. It supports all browsers, allowing you to view your desired file on Windows, Linux, Mac, Android, and iPhone. Well, it supports DWF, HPGL, PLT, CGM, DWG, and DXF formats. Insight

1 – It supports a free iframe plugin to view your website’s files.

2 – The file can be stored on the server after registration.

3 – From your own computer, you can access previously loaded files.

4 – It can also be used as a file repository.

5 – The maximum file size that can be uploaded to this system is 50 MB.

6 – It’s excellent to view 3D Smooth Shading, 3D Hidden Lines, and 3D Wireframe.

7 – This software has straightforward navigation and functionality.


For Windows and Linux, gCAD3D is a free STP file viewer. Well, this integrated 3D-OpenGL viewer supports a number of file import and export formats. You can easily view STEP, Iges, VRML, DXF, SVG, and other file formats.

CAD3D Insight

1 –  GCAD3D is a free STEP viewer.

2 – It also shows many view options, such as side, axo, top, front, scal.all, scal.fix, and viewport.

3 – It is governed by the GNU General Public License.

4 –  gCAD3D is straightforward to use and customise.

4. 3D Viewer Online

An excellent tool for viewing STEP files is 3D Viewer Online. For STEP files, you get up to 5 GB of free cloud storage. OBJ, PLY, STL, and other types of files may be added. 50 MB is the most you can store. You could add Web API to the 3D viewer to add value for your customers. The majority of 2D and 3D file formats are supported by 3D Viewer Online.

Insight 3D Viewer

1 – You can show and hide smart lines using this Viewer.

2 – You can easily capture a screenshot of your work.

3 – It’s simple to define the X, Y, and Z cutting planes.

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4 – STEP file upload capacity of up to 50 MB.

5 – You can choose from a variety of view modes.

Viewer for Autodesk

Autodesk Viewer is one of the best STEP File viewer options available online, and it’s fun and easy to use. You can easily view and share your design using any web browser. Well, it supports almost all 3D and 2D file formats, including STEP and SOLIDWORKS. You can also share your design via the URL or print it if you think it’s necessary. You can also capture a screenshot and send it to a friend via email.

5. Autodesk Viewer

Autodesk Viewer is among the best online STEP File viewer options, providing enjoyment and convenience. Using any web browser, you can easily view and share your design. Well, it supports almost all 3D and 2D file formats, including STEP and SOLIDWORKS. Furthermore, you may share your design via the URL or print it if you deem it necessary. In addition, you may capture a screenshot and email it to your buddy.

Autodesk Viewer Insight

1 – Autodesk Viewer enables the measurement of distances from various vantage points.

2 – You can zoom in and out to view things from different points of view.

3 – The properties of the file are shown in a separate box.

4 – You can easily share your presentation because you can use the URL, take a screenshot, and print it.

5 – Any file can be marked up with annotations.

It is a simple STEP file viewer.

6. GLC Player

The popular software GLC Player is used to view 2D and 3D models. It supports all features and file types. As a result, it is called multifunctional freeware. The free STEP Viewer produces accurate and significant results, which is why professionals use this practical software. It supports 3D visualisation of 3DXML V3 and V4 (Ascii), STL (binary + ASCII), OBJ, and 3DS.


To view the STEP file, use IDA-STEP, which is free software. It is very easy to use and can be changed in many ways. You can view each part of your 3D model separately. It offers a new perspective on managing.STP and.STEP files. Similar to the other STEP viewer, it supports left, right, back, bottom, and front views.

8. STP Viewer

STP Viewer is a simple and straightforward CAD software. All 3D object markers are displayed in a tree-like view. Dynamic zooming is possible with either the toolbox or the mouse. You can view both the 2D and 3D sides with this amazing tool. You can also view wireframes and alter the line colour.

9. STL View

With little experience in 3D and CAD, novices can use STL View software. The STP viewer can fulfil your primary needs. It is very light and easy to move around. So, the STL View is excellent for running STEP files’ basic functions. When you download directly from the recommended site, zip files will be downloaded automatically.

10. Open 3D Model Viewer

It can be an excellent choice for 3D design and printing. This STEP file viewer might fulfil your needs for designing, reading, and maintaining STP files. Open 3D Model Viewer is also open source and free to use.


STEP files are challenging for beginners, as you can see. Without prior knowledge, using and managing these files will be very difficult. You can, however, use a free STEP file viewer to open and look at the design. If you don’t want to download any software, you can also use an online STEP file viewer.