Guides and comparisons on 2D CAD, DXF, and drafting workflows.
Draw a regular polygon from a centre and radius or from one edge, then repeat holes round a bolt circle with a polar array — free in your browser, with exact typed values.
Read more →A DXF that opens 25.4× too small or 1000× too big is a units mismatch, not a broken file. How to identify the ratio, rescale the drawing, and check the fix.
Read more →Convert DXF to PDF free in your browser — including at an exact scale like 1:50 on A3, which converter sites can't do. No install, no account.
Read more →DWG is AutoCAD's native format; DXF is the open exchange format. What actually differs, which one you need, and how to get a DXF when you've been sent a DWG.
Read more →Why cutting services reject DXF files, and how to fix yours — closed paths, units, kerf, and layers — free in your browser with nothing to install.
Read more →Sent a .dxf file and don't have AutoCAD? Open it free in your browser, no install — plus desktop alternatives and fixes for blank or mis-scaled drawings.
Read more →A practical comparison of the CAD software worth considering in 2026 — from AutoCAD and SolidWorks to free, open-source, and browser-based tools — with the honest strengths and weaknesses of each.
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