Is it free to convert between DWG and STP?

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

.dwg

.stp

DWG vs STP

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

STP

STEP CAD File

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

.stpcad

DWG vs STP: Feature Comparison

Feature	DWG	STP
Full Name	AutoCAD Drawing	STEP CAD File
File Extension	.dwg	.stp
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 STP

Use DWG when you need:

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

Use STP 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 STP STP DWG

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Learn More About These Formats

DWG Converter STP Converter

Frequently Asked Questions

What is the difference between DWG and STP?

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

Can I convert DWG to STP for free?

Yes! Convert999 lets you convert DWG to STP 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 STP?

It depends on your use case. DWG (AutoCAD Drawing) may be better for certain workflows, while STP (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

STP Converter

Convert from STP

File Tools

Compress, resize, merge

Convert to DWG

All sources → DWG

Convert to STP

All sources → STP

Format Statistics

Trends & data 2025

More Format Comparisons

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Feature

DWG

STP

Full Name