BMP to DXF Converter
Transform BMP images into DXF CAD drawings online
Drop a file here. It never leaves your browser.
PNG, JPG, WebP, GIF, BMP, HEIC, TIFF, AVIF · any size · free · DXF or DWG · works best on clean line art, logos and high contrast shapes
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How to convert a BMP to DXF
Add your file
Drop a BMP onto the converter, or click to choose one. It stays on your device.
Tune the trace
Adjust threshold and smoothing until the live preview shows the outline you want.
Download DXF
Download the DXF and open it in your CAD, CAM or laser software. The other format is one click away if you need it.
The same conversion from a script
The converter above runs in your browser and always will. When it is a whole folder, or something that has to happen inside a build, the REST API runs the identical trace server-side — POST /api/v1/dxf, one image in and a DXF out, with format: "dwg" for AutoCAD's own, and it costs no credits. There is also a command line tool and an MCP server so an AI agent can do it on your behalf. Programmatic access is part of the Studio plan.
About formats
BMP (Bitmap) is a raster image format introduced by Microsoft with early versions of Windows in the mid 1980s. In its common form it stores pixel data uncompressed, writing each pixel directly into the file, which makes BMP simple, perfectly lossless and easy for software to read, at the cost of large file sizes. It remains widely used inside Windows software and as a working or intermediate format where fidelity matters more than size. Because BMP preserves every pixel without compression artifacts, line art and technical sketches saved as BMP keep their edges intact, which is ideal for tracing. High contrast BMP images convert into clean, accurate DXF contours.
- Developer:
- Microsoft
- Initial release:
- 1986
Frequently asked questions
Why convert a BMP to DXF?
DXF is the standard exchange format for CAD, CAM and laser software. Converting your BMP into a DXF turns a flat picture into vector cut paths you can open and edit in AutoCAD, Fusion, LibreCAD and LightBurn.
What software opens a DXF file?
AutoCAD, Fusion, LibreCAD, FreeCAD, DraftSight, Inkscape and most CAD, CAM and laser tools read DXF natively for editing and fabrication.
Does the converter trace the image?
Yes. It finds the edges in your BMP and traces them into closed vector contours, then writes those as DXF polylines. Because it traces pixels, the output is an outline with no real dimensions or scale, which is perfect for flat cutting but is not a measured engineering drawing.
Is BMP to DXF conversion free?
Yes, and there is no watermark. The conversion runs entirely in your browser, so your file is never uploaded; a free account is needed only to download the finished file.
Can I get a DWG instead of a DXF?
Yes. The same conversion downloads as either a DXF or a DWG, both AutoCAD 2000 format, and the DWG is written in your browser too, so nothing is uploaded either way. Pick DWG if you work in AutoCAD and want its native format; pick DXF if the file is going to a laser, CNC or another CAD program, since DXF is read by more software.
What BMP files work best?
High contrast images with clear outlines give the best DXF: logos, stencils, technical sketches, floor plans and simple shapes. Busy photos with shadows and gradients trace poorly because there is no clean edge to follow.
Can I use the file for laser cutting or CNC?
Yes. The traced polylines drop straight into laser, plasma, waterjet and CNC routing software as cut paths. Set an output width in millimetres before you download so the part comes in at real size.
Is there an API for BMP to DXF conversion?
Yes. POST an image to /api/v1/dxf and the same trace runs server-side, returning the DXF, and a DWG alongside it if you ask for one. It costs no credits, and there is a command line tool and an MCP server over the same endpoint so an AI agent can run it for you. Programmatic access is part of the Studio plan; the converter on this page stays free and stays in your browser.
I have a different image, not a BMP. Can I still use this?
Yes. The converter accepts any common image, including PNG, JPG, WebP, GIF, BMP, HEIC, TIFF and AVIF, whichever page you started from. Just drop your file and it converts.