Is it free to convert between STEP and STP?

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

.step

.stp

STEP vs STP

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

Format Overview

STEP

STEP CAD File

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

.stepcad

STP

STEP CAD File

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

.stpcad

STEP vs STP: Feature Comparison

Feature	STEP	STP
Full Name	STEP CAD File	STEP CAD File
File Extension	.step	.stp
Category	cad	cad
Free to Convert	✓ Yes	✓ Yes
Browser Support	✓ All Browsers	✓ All Browsers
Convert to Each Other	✓ Yes	✓ Yes

When to Use STEP vs STP

Use STEP when you need:

•Files in STEP CAD File 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

STEP STP STP STEP

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Learn More About These Formats

STEP Converter STP Converter

Frequently Asked Questions

What is the difference between STEP and STP?

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

Can I convert STEP to STP for free?

Yes! Convert999 lets you convert STEP 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, STEP or STP?

It depends on your use case. STEP (STEP CAD File) 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.

STEP Converter

Convert from STEP

STP Converter

Convert from STP

File Tools

Compress, resize, merge

Convert to STEP

All sources → STEP

Convert to STP

All sources → STP

Format Statistics

Trends & data 2025

More Format Comparisons

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Feature

STEP

STP

Full Name

STEP CAD File

File Extension

.step

.stp

Use STEP when you need:

•Files in STEP CAD File 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

Frequently Asked Questions

What is the difference between STEP and STP?

Can I convert STEP to STP for free?

Yes! Convert999 lets you convert STEP 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, STEP or STP?

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.