KUON DXF
Diagnose, repair and preview DXF drawings. Nothing is uploaded: the file never leaves your device.
Diagnosis
R12 is what old machines and laser cutters ask for. Getting there means expanding blocks and dimensions into plain lines and text, so the file loses its structure. R12 also predates any agreed way to record non-Latin text: we write it as UTF-8, which modern readers accept and an old machine may show as nonsense. The geometry is exact either way. Untick a layer above and it drops out of every export on this page.
Layers
Fonts
Preview
Splines are drawn through their control points, so curves are approximate in this preview. The downloaded DXF keeps them exactly.
This tool reads the DXF, rewrites the header and re-encodes the text. Geometry, layers, dimensions and blocks are copied through byte for byte. It does not convert between CAD formats and it cannot recover what an earlier conversion already discarded. Everything runs in your browser: no upload, no account, no log of your drawing.