DXF to SVG API

Render DXF drawings to clean, scalable vector graphics over HTTP.

DXF is the format everything in CAD and CAM speaks, but it is a data format, not a picture — reading it means implementing splines, arc bulges, block transforms, line types and text placement correctly. That is a surprising amount of geometry maths to get right, and getting it subtly wrong produces a drawing that looks fine until someone measures it. This endpoint does the rendering for you and returns finished SVG.

Example

curl -X POST "https://apimycad.com/v1/dxf-to-svg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "file=@part.dxf" \
  -o part.svg

Uploads up to 50 MB — DXF is a text format and runs several times larger than the equivalent DWG, so the limit is higher here than on the DWG endpoints.

Options

?bg=white (default), ?bg=black or ?bg=transparent. White gives you a printable sheet; transparent is the one you want when embedding into a page that already has its own background or a dark theme.

What is rendered

Lines, polylines, LWPOLYLINE with bulges, circles, arcs and ellipses
Splines — properly evaluated, not skipped or straight-lined
Text and multiline text, drawn as vector outlines so no server fonts are required
Blocks and inserts with their transforms, hatches, dimensions and layer colours

Malformed DXF files are audited and repaired where possible rather than rejected outright — real-world files exported by older software often contain small inconsistencies that would otherwise stop a strict parser.

Common uses

Preview a customer's uploaded DXF instantly in a quoting or ordering flow
Show nesting layouts, cut paths or part outlines in a web dashboard
Generate illustrations for documentation directly from the source geometry
Build an interactive viewer — SVG paths can be styled, highlighted and clicked

Need a raster instead?

PNG output is available from the same renderer via /v1/dxf-to-png, with a dpi parameter from 72 to 600.

Related conversions

Read the API documentation