KordFree diff tool
Compare two DXF files
Diff two DXF drawings in your browser, free, no account, no AutoCAD: see what changed between two revisions of a 2D CAD drawing. Built by Kord; opens with a sample tie-in drawing pair loaded.
Free, no account. Opens with a two-revision tie-in drawing loaded.
The drawing office works in AutoCAD; half the people who need to check a revision do not. A .dxf in the inbox is either a request to install a viewer or a request to take someone's word for what changed.
Drop the two revisions here and see the drawings against each other in the browser - free, no account, no AutoCAD on the machine. It opens with a sample tie-in drawing at two revisions.
What the comparison shows
What you get on screen once both files are in, and why each piece is there:
- The drawing, drawn. Both revisions rendered as drawings - linework, text, and dimensions - and compared visually.
- No CAD seat needed. Anyone with the link can see the comparison, which is the point of a review.
- Faster than a plot. The two-prints-on-a-window method still works. This is that, without the printer.
How to compare two DXF drawings
Three steps, none of which is signing up:
- Open the diff tool - it loads with a two-revision tie-in drawing already compared, so you see the result shape before committing your own files.
- Drop your two DXF drawings into the Before and After slots - up to 25 MB each.
- Read the comparison. If someone else needs to see it, Share turns it into a link.
FAQ
The questions people ask before dropping real files on a free tool, answered plainly:
Is it free?
Yes. No account, no trial clock, no watermark. The tool exists because we build Kord, version control for engineering document sets, and a diff you can run in ten seconds explains the product faster than any brochure.
Do my drawings get stored?
Files are kept only as long as it takes to draw the comparison. Most formats render in your browser; Word and PowerPoint are converted to a preview by our servers in memory, and a file too big to ride a request travels through a short-lived upload that is deleted automatically. There is no account, so there is no history to attach anything to. The longer answer is at work.withkord.com/security.
What is the size limit?
25 MB per file. Larger Office files are routed through a short-lived upload behind the scenes, so a 20 MB workbook behaves the same as a 2 MB one.
What about DWG?
Export to DXF - every CAD tool that writes DWG writes DXF. The exchange format exists for exactly this situation.
When two files aren't the real problem
A one-off diff answers a one-off question. If your team compares DXF drawings every revision cycle - and the revision that matters sits next to drawings, specs, and calc sheets that have to agree with it - that is the job Kord exists for: version control on the whole document set, this same visual comparison between any two revisions, and review sessions with sign-off before anything is issued. The longer argument is in Git for documents.
Compare other formats
The same tool reads eleven formats - the full list is on the compare index. Nearby: Compare two PDF files · Compare two STEP files · Compare two Visio files.