Is it free to convert between DWG and STEP?

Yes, Convert999 is 100% free. All conversions happen locally in your browser with no file size limits, no registration, and no watermarks.

.dwg

.step

DWG vs STEP

Compare AutoCAD Drawing and STEP CAD File formats — understand the key differences and when to use each

Format Overview

DWG

AutoCAD Drawing

AutoCAD Drawing (.dwg) is a cad file format.

.dwgcad

STEP

STEP CAD File

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

.stepcad

DWG vs STEP: Feature Comparison

Feature	DWG	STEP
Full Name	AutoCAD Drawing	STEP CAD File
File Extension	.dwg	.step
Category	cad	cad
Free to Convert	✓ Yes	✓ Yes
Browser Support	✓ All Browsers	✓ All Browsers
Convert to Each Other	✓ Yes	✓ Yes

When to Use DWG vs STEP

Use DWG when you need:

•Files in AutoCAD Drawing format for maximum compatibility
•Industry-standard cad format support
•Wide software and platform compatibility

Use STEP when you need:

•Files in STEP CAD File format for specific workflows
•Optimized cad format features
•Modern format advantages and smaller file sizes

Convert Between Them

DWG STEP STEP DWG

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Learn More About These Formats

DWG Converter STEP Converter

Frequently Asked Questions

What is the difference between DWG and STEP?

DWG (AutoCAD Drawing) and STEP (STEP CAD File) are both cad file formats. DWG files use the .dwg extension while STEP uses .step. They differ in compression, quality, compatibility, and intended use cases.

Can I convert DWG to STEP for free?

Yes! Convert999 lets you convert DWG to STEP completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.

Which is better, DWG or STEP?

It depends on your use case. DWG (AutoCAD Drawing) may be better for certain workflows, while STEP (STEP CAD File) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.

Is it safe to convert files on Convert999?

Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

DWG Converter

Convert from DWG

STEP Converter

Convert from STEP

File Tools

Compress, resize, merge

Convert to DWG

All sources → DWG

Convert to STEP

All sources → STEP

Format Statistics

Trends & data 2025

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Feature

DWG