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CAD Version Converter

Save a drawing for an older AutoCAD release, such as 2007 or 2004, so it opens there.

CAD Version Converter
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We’re finishing this tool. Leave your email and we’ll tell you the day it goes live.

About CAD Version Converter

A CAD version converter fixes a familiar problem: you send a DWG and the other person's AutoCAD reports that the drawing file is not valid. Each AutoCAD opens drawings saved in its own DWG format or an older one, so a file in 2018 format won't open in AutoCAD 2010. Upload the file, pick the release they use and download a copy saved in that format.

The default is AutoCAD 2007, which every release since then can open; 2013, 2010, 2004, 2000 and 2018 are on the list too. Save as keeps DWG or writes a DXF of the same release, and DXF files can go in as well. Objects that only exist in newer releases may be simplified in an older format, so check the result before sending it.

How to use CAD Version Converter

  1. 1
    Upload a DWG or DXF

    Choose the drawing or drop it onto the page. A free account handles files up to 50 MB.

  2. 2
    Pick the target version

    In AutoCAD version, choose the release the recipient uses, from 2018 down to 2000.

  3. 3
    Choose DWG or DXF

    Leave Save as on DWG, or switch to DXF for another CAD program, then click CAD Version Converter.

  4. 4
    Download the copy

    Send it on. It opens in the release you picked and in every newer one.

Why use Cubfile for this

  • Six target releases

    AutoCAD 2018, 2013, 2010, 2007, 2004 and 2000, for moving files down or up.

  • Save as DWG or DXF

    Keep the result as a DWG, or write a DXF of the same release for programs that prefer it.

  • Opens in older AutoCAD

    A file saved for 2007 opens in AutoCAD 2007 and later, so an older installation stops rejecting it.

  • Nothing to install

    No AutoCAD needed. The conversion runs from any browser, even on a phone.

FAQ

CAD Version Converter: questions and answers

Why does AutoCAD say the drawing file is not valid?
Usually the DWG was saved by a newer AutoCAD than the one opening it. Save it for the older release with this converter and it should open. When viewing is all you need, the CAD Viewer shows the drawing in your browser.
Which version should I pick in the CAD version converter?
The release the recipient runs, or an older one. If you can't find out, choose 2004, which AutoCAD 2004 and every later release can open. If they don't use AutoCAD at all, send a PDF made with DWG to PDF instead.
Can the CAD version converter also upgrade old drawings?
Yes. Choose AutoCAD 2018 to save an older DWG or DXF in the 2018 format.
Is the CAD version converter free?
Yes for occasional use. You get 2 tasks without an account, or 2 a day with a free one, for files up to 50 MB; VIP has no task limit and a 1 GB file size.
Is it safe to upload project drawings?
Yes. Uploads are encrypted, each job runs on its own in an isolated process, and files are removed automatically after one hour. We never open, share or sell them.
Share CAD Version Converter with a friendIt runs in any browser, and they can try it without signing up.

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