CAD Tools
Engineering and drafting utilities in one place: steel sections, tolerances and fits, bolt circles, drawing scales, a DXF viewer, unit conversion, revision and bulk renaming, PDF to DXF, drawing-number splitting and PDF tools. Free, no sign-up.
python server.py in this folder, then open http://localhost:8090.
Steel Profiles AU
Australian steel sections (AS/NZS 3679.1, AISC DCT) with gauge lines and dimensioned drawings.
Open tool →FitGauge
Hole and shaft limits and fit type to AS 1654 / ISO 286, e.g. H7/g6.
Open tool →BoltCircle
PCD hole coordinates with a diagram and CSV, AutoCAD script and DXF export.
Open tool →ScaleMate
Real-to-paper sizes at any drawing scale, and the right scale for your sheet.
Open tool →DrawingLens
Open, pan, zoom, measure and toggle layers in DXF and SVG drawings.
Open tool →Unit Conversion
22 engineering unit categories: force, pressure, torque, flow, power and more.
Open tool →Revision Renamer
Add a revision suffix to a folder of drawings, preview the names, rename with undo.
Open tool →Bulk Renamer
Load a folder's filenames, paste new names from Excel and rename them all at once.
Open tool →PDF Compress
Shrink drawing sets and scanned PDFs in bulk and download them as a ZIP.
Open tool →PDF Combine & Split
Merge PDFs into one, or split a PDF into pages or page ranges.
Open tool →PDF to CAD
Convert vector PDF drawings to DXF with lines, arcs, circles and text.
Open tool →Drawing Number Extract
Split a PDF drawing set into one file per sheet, named by its drawing number.
Open tool →