Convert Computer graphics metafiles (CGM) online for free
The converter easily converts your CGM Graphics files to various formats - free and online. No Siemens NX or or other Vector Image software needed.
To convert other file formats to the "Technical Vector Graphic" file type, you need software like Siemens NX or a similar tool.
A .CGM file is a Computer Graphics Metafile, strictly defined by the ISO/IEC 8632 standard. It acts as a container for 2D vector graphics, raster images, and text. Today, its primary use case is found in aerospace, automotive engineering, and defense industries for technical illustrations and Interactive Electronic Technical Manuals (IETMs). You will typically encounter these files when exporting schematics or models from high-end engineering platforms like Siemens NX, Dassault Systèmes CATIA, or PTC IsoDraw.
The main disadvantage of the .CGM format is its severe lack of broad consumer support. It is a legacy industrial standard that is completely ignored by modern web browsers and standard operating systems. Opening a .CGM file requires specialized CAD software, expensive technical illustration tools, or dedicated enterprise viewer plugins. For standard users or external contractors, receiving a .CGM file is a frustrating roadblock because it cannot be natively previewed in Windows, macOS, or standard office suites.
To make these files usable, you must convert them. For web display and general vector editing, convert .CGM to SVG, which preserves vector scalability while ensuring complete browser compatibility. If you need to share the schematic for client review or printing, convert it to PDF. For importing the geometry into other CAD programs, converting to DXF is the best choice. Drag and drop your file to analyze and convert it - free, online, and without installing complex engineering software.
Use Convert.Guru to open and convert your CGM file.
Users also converted CMG, GCM, REP, HPG, PNG, CATDRAWING, PDF, BAK, DWF, CTB, DXF, SVG and JPG files.
If you want to convert CGM file to DXF, DWG, AI, CDR or WMF, you can use Siemens NX or similar software from the "Vector Graphics Metafile Storage" category. In the File menu, look for Save As… or Export….
To convert AFPUB, EPS, FIG, VSD, SKETCH, VDX, AFPHOTO, PDF, AFDESIGN, SVG, VSDX or AI files to CGM, try Siemens NX or another comparable tool in the "Vector Graphics Metafile Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CGM converter.