KUON CAD Tools

Free, no-account, fully in-browser tools for getting drawings across. The part of CAD where files break, and nobody wants to spend the afternoon.

Repair DXF drawings that arrive broken: legacy code pages that crash FreeCAD, wrong units. Inspect layers, dimensions and fonts, preview the sheet, pick the layers you want, print at true scale, export SVG, R12 and a CSV of every text on the drawing.

Repair · inspect · preview →

KUON DXF Compare

Overlay two revisions of the same drawing. Added, removed and unchanged geometry in three colours, with the differences as CSV.

Old vs new revision →

Drop a whole folder of DXF files, repair every one of them in a single pass, take the result away as a ZIP.

A folder at a time →

Open a Japanese SXF exchange file (.sfc / .p21) and see its header, level, layers and a full inventory of what it contains.

.sfc / .p21 inspector →

Coming soon

Draw the geometry of an SXF file once we can verify the feature layout against a real drawing
Read DWG
Merge several drawings onto one sheet

These tools read your file in the browser and never send it anywhere. They repair and inspect exchange formats. They do not translate between proprietary CAD formats, and they cannot recover what an earlier conversion already discarded.
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