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HomeConvertSTEP Converter

STEP Converter

Convert STEP CAD File files to any format — free, fast, and 100% private

Archivos CAD6+ Output Formats
Elegir Archivos

o arrastra y suelta archivos aquí

Tamaño máximo: 2GB

Tus archivos se procesan localmente en tu navegador. Nada se sube a ningún servidor.

Instant Conversion

Convert STEP files in seconds using WebAssembly

100% Private

Files never leave your device — zero server uploads

Free Forever

No limits, no registration, no watermarks

What is STEP?

STEP CAD File (.step)

STEP CAD File (.step) is a cad file format.

Convert STEP to Any Format

Select an output format below to convert your STEP CAD File file

STEPDWGSTEPDXFSTEPDGNSTEPSTPSTEPIGESSTEPIGS

How to Convert STEP Files

1

Open Convert999 and upload your STEP file by clicking "Choose Files" or dragging it into the converter.

2

Select the desired output format (e.g., PDF, JPG, PNG, DOCX, MP3, or any of 6+ supported formats).

3

Click "Convert Now" and download your converted file instantly. No waiting, no server processing.

STEP Converter FAQ

How do I convert STEP files?
Upload your STEP file to Convert999, select the desired output format, and click convert. The conversion happens instantly in your browser — no file uploads to any server.
What formats can I convert STEP to?
You can convert STEP to 6+ formats including DWG, DXF, DGN, STP, IGES and more.
Is the STEP converter free?
Yes! Convert999 is 100% free — no registration, no watermarks, no file limits. Convert unlimited STEP files at no cost.
Can I convert STEP files on my phone?
Yes, Convert999 works on any device with a web browser — iPhone, Android, tablet, or desktop. No app installation needed.
Is it safe to convert STEP files online?
Convert999 processes all files locally in your browser using WebAssembly technology. Your files never leave your device, ensuring complete privacy.
What is the maximum STEP file size I can convert?
Convert999 supports files up to 2GB. Since processing happens locally, performance depends on your device's available memory.

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STEP Format Details

Full specification & info

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