STEP Viewer
Open STEP / STP file with viewer
What is a STEP viewer?
Ein STEP-Viewer ist ein Programm mit dem sich eine Step-Datei (Dateiendung STP oder STEP) öffnen, betrachten und analysieren lässt.
Depending on the desired function, there are free STEP viewer and STEP viewer for a fee.
Free STEP viewers generally offer a limited range of functions compared to paid viewers. The latter are primarily aimed at professional users.

STEP / STP stands for Standard for the Exchange of Product Model Data
The STEP file format, also known as STP, is a standard file format in 3D design. The file format makes it possible to save a complete 3D model. STEP is frequently used in the areas of manufacturing, 3D printing and quality assurance.
File extension
- .stp or .step
International standard
- The STEP file format is formally defined in ISO standard 10303.
Topic overview
STEP Viewer
- Free STEP viewer
- Paid STEP viewer with additional functions
- Kisters 3DViewStation - a viewer for more than 70 file formats
FAQ
> Further information on the file format STEP you will find here.
> Information and differences to the STEP Application Protocols AP203, AP214 and AP242 you will find here.
Free STEP viewer
Free STEP viewers generally have a limited range of functions. Providers such as Autodesk or CADSoftTools offer free STEP viewers for online use.
- Free of charge STEP Viewer from Autodesk (Login required)
- Free of charge STEP Viewer from CADSoftTools
Tip: If you need additional functions for a short period of time, it may be worth downloading a trial version of a paid programme.
Paid STEP viewer
Paid STEP viewers, such as Kisters 3DViewStation or 3D-Tool (Premium), not only support the STEP file format, but also offer other interesting functions such as fast loading times:
- Import and export of a variety of 2D and 3D file formats
- Simultaneous loading of multiple files / formats
- Conversion
- Special views (exploded view, fly through animation, skybox rotations)
- Comprehensive measurement functions
- Compatible with Microsoft / Mac
Kisters 3DViewStation
The Kisters 3DViewStation is a viewer with measurement function for more than 70 file formats!
The high-performance CAD viewer from Kisters reads all common CAD formats, such as CATIA, CREO, DWG, PRT, DWG, EXCEL, JT, SIEMENS NX, SOLIDWORKS and, of course, STEP, and is suitable not only for visualisation but also for analysis - such as measuring, cutting, dimensioning - and conversion of CAD data.
The 3DViewStation is a powerful viewer with over 180 interactive functions. The viewer loads even the largest assemblies - with several million parts - in seconds. A simple and intuitively designed user interface makes the application particularly user-friendly and facilitates the exchange of CAD data within the company, with customers or suppliers.
The 3DViewStation offers the right solution for every application. In addition to the desktop version, the following variants are available:
- The WebViewer The 3DViewStation runs on Microsoft Windows, Android, iOS, MacOS or Linux and can be used on various (mobile) end devices, such as laptops, PCs, tablets and smartphones.
- Kisters VisShare is the ideal software solution for smooth online collaboration!
Register now to test the trial version of Kisters 3DViewStation free of charge for 30 days.
A short personal introduction to the software is included.
FAQ
Ist der Autodesk Viewer kostenlos?
Ja, der Viewer von Autodesk ist ein kostenfreies Online-Tool, das sowohl für private als auch für kommerzielle Zwecke genutzt werden kann. Direkt über den Browser lassen sich verschiedene 2D- und 3D-Dateiformate (wie DWG, DXF, STEP und STL) anzeigen, teilen und prüfen. Für die Nutzung ist ein kostenloses Autodesk-Konto erforderlich.
Kostenpflichtige Viewer, wie KISTERS 3DViewStation, bieten im Vergleich zum Autodesk Viewer meist leistungsstarke Offline-Funktionen, kürzere Ladezeiten, erweiterte Bearbeitungswerkzeuge, weitere Dateiformate sowie bessere Sicherheitsstandards.
Was ist STEP?
STEP (Dateiendung .stp oder .step) ist ein Standard-Dateiformat für das Speichern und den Austausch von 3D-Modellen. Es ermöglicht das Speichern vollständiger Geometrien und wird vor allem in der industriellen Fertigung, im 3D-Druck und in der Qualitätssicherung eingesetzt.
Die Abkürzung STEP / STP steht dabei für „Standard for the Exchange of Product Model Data“, zu deutsch „Standard für den Austausch von Produktdaten“.
Gibt es einen Unterschied zwischen STEP und STP?
Kurz gesagt: Nein. Die Dateikürzel STEP und STP beziehen sich auf dasselbe Dateiformat auf Basis der Norm ISO 10303. Sowohl .step als auch .stp stehen für „Standard for the Exchange of Product model data“ und sind technisch gleichwertig.
Zwar bevorzugen manche CAD-Programme eine der beiden Varianten, doch in der Praxis sind die Dateiformate austauschbar. Im Arbeitsalltag hat sich die kürzere Form .stp weitgehend als Standard durchgesetzt.
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