5 Free CAD Software
1, LibreCAD

LibreCAD is a free, open source, slim, cross-platform and multi-language 2D CAD application developed by R. van Twisk.


LibreCAD works on Windows 7, Windows XP, Mac OS X, etc.

LibreCAD is a 10.2MB download available from SourceForge.net.

Alternatively, you may also be interested in DraftSight as well as A9CAD.

2, A9CAD

A9CAD is a free, lightweight, multiple-document interface and simple two-dimensional computer-aided design and drafting utility for Windows developed and released by A9Tech.


A9CAD works on Windows 7, Windows XP, Windows Vista and Windows 2000.

A9CAD is a 15.5MB download available from CNET and the developer’s website.

3, DraftSight

DraftSight is a free, cross-platform, professional level design, drafting, engineering and architectural sketching application that allows to create, open, save, edit and view DWG, DXF, DWT files, you can use it as an alternative to Autodesk AutoCAD.


DraftSight supports Windows 7, Windows XP, Mac OS X and Linux.

DraftSight is a 55.4MB download available from the developer’s website.

4, TinyCAD

The CPU( central processing unit ) is the brain/heart of the computer, notebook, netbook, iPad, iPhone, iPod, Android mobiles and BlackBerry, it’s actually an electronic circuit, TinyCAD is a free and open source circuit diagram design software for Windows, you can use it as an alternative to VeeCAD, AutoCAD, ExpressPCB, Cadence OrCAD and Easy PCB.


TinyCAD supports all 32-bit Windows operating systems including but not limited to Windows 7, Windows XP.

TinyCAD is a 4.4MB download available from SourceForge.net.

5, Logisim

Early this month we reviewed TinyCAD, which is a freeware for designing circuit diagram. Logisim( LODJ-uh-sim ) is a free, open source, lightweight, easy-using, cross-platform, multi-language and portable alternative to TinyCAD which is suitable for students, it can be used to create larger circuits, hierarchical circuits and wire bundles.


Logisim supports Windows 7, Windows XP, Mac OS X and Linux.

Logisim is a 5.91MB download available from SourceForge.net.