Free STEP Software and Services

Organization	Product	Description	For more information
Electric Boat	Jen-X	A tool for generating XML schemas from EXPRESS schemas	http://pdesinc.aticorp.org/vendor/Jen-X.html
PDES, Inc.	AP203 E1 to E2 file converter	This utility converts an AP203 Edition 1 file to an AP203 Edition 2 file.	http://pdesinc.aticorp.org/vendor/203e1_e2_converter.html
EPM	Demo software	Request free demo software to create data models, database and server applications.	http://www.epmtech.jotne.com/demos
EPM	EDMmodelMigrator	Learn how to migrate your databases to STEP/PLCS using the on-line migration tool.	http://edmserver.epmtech.jotne.com/EDMMAT
KShell Analysis	STEP Part 21 to Prolog translator	An open source application which converts content of a STEP Part 21 file into a file of Prolog clauses. Scripts written in the Prolog logic programming language then allow for generating XML views of the original content, searching file content, and extracting content for use by other applications. Online demonstration of the translator is available.	http://www.kshell.com/prolog
LKSoft	IDA-STEP Viewer	This tool supports viewing of APs 203, 212 and 214 files in a user friendly way. In addition to PDM-Schema (AP203 cc1 & AP214 cc6) this tools supports 2/3D STEP-Geometry, and process plan data.	http://www.ida-step.net
NIST/NASA	Expresso	Expresso is a development environment which supports the validation of STEP data populations via EXPRESS (ISO 10303-11) schemata and the transformation of STEP data populations from one schema to another via EXPRESS-X (ISO 10303-14) schemata.	http://sourceforge.net/projects/exp-engine/
CAx-IF	Instance Diagram Tool	The Instance Diagram tool allows you to create a graphical representation of the structure within a Part 21 STEP file. The layout of these diagrams is derived from the EXPRESS-G representation. Main application areas for the Instance Diagrams are Recommended Practices, i.e. Implementation Guidelines, and technical presentations.	http://www.cax-if.de/tools/
CAx-IF	STEP to HTML Tool	The STEP 2 HTML tool converts STEP Part 21 files to HTML documents by adding hyperlinks to the entity references, so that navigation within the file becomes quite easy.	http://www.cax-if.de/tools/
Eurostep	PDM Schema Exporter	The Eurostep PDM Schema Exporter is a simple application for generating PDM Schema data from Excel^TM spreadsheets. Users can enter their bill of materials data into the spreadsheet and run the exporter to convert the data to the STEP PDM Schema format. The application can handle versioning, ownership, product structure and documents.	http://register.eurostep.com/pdm_schema_exporter
Eurostep	AP233 Demonstrator	The AP233 Demonstrator showcases the requirements management capabilities of AP233. It's original intent was to provide users with a way of generating and validating AP233 test data. However, the tool can also be used as a way to convert and display systems/requirements data. It incorporates read/write interfaces for DOOR^TM, Requisite Pro^TM, Word^TM, Excel^TM.	http://register.eurostep.com/ap233
Eurostep	GraphicalEXPRESS	GraphicalEXPRESS is the EXPRESS-G template for use with Microsoft’s Visio^TM tool. It includes significant improvements over the standard template delivered with Visio^TM. It enables EXPRESS models to be developed in either the published EXPRESS language (ISO 10303-11:1994), the Draft amendment (ISO DAM 10303-11:1999) or the proposed EXPRESS Edition 3.	http://register.eurostep.com/graphicalexpress
Eurostep	Graphical Instance	Graphical Instance is a prototype software for drawing instance diagrams based on a EXPRESS schema. It also supports importing exporting (limited amounts) of data in STEP P21 format, and graphic export in SVG format.	http://register.eurostep.com/gi
Eurostep	EXPRESS Parser	EEP is a windows command line EXPRESS parser. It enables EXPRESS models to be verified against either the published EXPRESS language (ISO 10303-11:1994) or the Draft amendment (ISO DAM 10303-11:1999).	http://register.eurostep.com/eep
Eurostep	EXPRESS for Free	EXPRESS for Free is an initiative that has produced a set of tools for converting between UML and EXPRESS. There is other material available at the dedicated website http://www.exff.org/.	http://www.eurostep.com/prodserv/exff /exff_r01a_package2003_10_24.zip
Jens Kübler	LV	LV is a 3D viewer, geometry checker and adapter for STEP files.	http://www.wundertools.de/
OpenCascade	e-Viewer	Open Cascade provides e-Viewer as a plug-in that is ready-to-use with most popular STEP viewers (for STEP 3D geometries). It supports AP203, AP214, AP209 protocols. e-Viewer allows you to easily view CAD models and exchange different CAD data formats. The standard e-Viewer is available for free download. Open Cascade also publishes its technology as Open Source (license LGPL), which includes libraries and the API (C++) to be called from user-written applications.	www.opencascade.com
PDTec	Instance Explorer	The PDTec Instance Explorer is a tool that enables the rapid graphical representation, generation, and layout of data. The resulting instance diagrams can be pasted into Windows applications, such as Microsoft Word or PowerPoint for further documentation efforts. The data can be imported and exported as either a STEP Part 21 file (ISO 10303-21) or as a STEP XML file (ISO 10303-28). The notational conventions are based on the customary EXPRESS-G notation.	http://ie.pdtec.de/
PDTec	ECCO Toolkit	The ECCO Toolkit is an EXPRESS-based integrated development environment, which allows for quick and flexible specification and implementation of mappings between data models. Among the conceivable applications are efficient implementations of converters (e.g. STEP processors) as well as rapid realization of solutions for online access.	http://ie.pdtec.de/
CADCAM-Services	gCAD3D	gCAD3D allows the user to import and view AP 203 and AP 214 files and view the geometry.	http://www.cadcam.co.at/freiter/gCAD3D_en.htm
STEP Tools, Inc.	CAD translation and EXPRESS compilation	This is an online translation service, which also has some free EXPRESS compilation services.	http://www.steptools.com/translate/

PDES, Inc. is providing this web-page of Free STEP Software and Services to organizations interested in implementing the STEP standard. PDES, Inc. is not making any claims about the quality, performance, or usability of the software or services. Users can implement the software or use the services at their own risk.