How to Convert Multiple BMP Images to STEP?
1. Download and Install reaConverter
First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed. Need edits? Resize, rotate, or add watermarks during conversion.
2. Load your BMP files
Start reaConverter and add your .bmp files. The software processes everything locally, so your files never leave your computer.
Use drag-and-drop, folder browser, or right-click conversion from Explorer.

3. Select STEP as output format
Select STEP from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

4. Start BMP to STEP conversion
Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your STEP output.
How BMP and STEP differ in practice
BMP is made of pixels and STEP is a geometry format, so the two describe images in fundamentally different ways. Check the result before sending it downstream: what matters is whether the output contains editable geometry or a picture placed inside a STEP container, and that determines whether a CAD or design tool can work with it.







