Is it free to convert between STP and STEP?

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

.stp

.step

STP vs STEP

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

Format Overview

STP

STEP CAD File

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

.stpcad

STEP

STEP CAD File

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

.stepcad

STP vs STEP: Feature Comparison

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

When to Use STP vs STEP

Use STP when you need:

•Files in STEP CAD File 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

STP STEP STEP STP

ファイルを選択

またはファイルをここにドラッグ＆ドロップ

最大ファイルサイズ：2GB

ファイルはブラウザ内でローカルに処理されます。サーバーにアップロードされません。

Learn More About These Formats

STP Converter STEP Converter

Frequently Asked Questions

What is the difference between STP and STEP?

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

Can I convert STP to STEP for free?

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

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

STP Converter

Convert from STP

STEP Converter

Convert from STEP

File Tools

Compress, resize, merge

Convert to STP

All sources → STP

Convert to STEP

All sources → STEP

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNG PNGvsWEBP JPGvsWEBP SVGvsPNG HEICvsJPG BMPvsJPG TIFFvsJPG GIFvsPNG

Feature

STP

STEP

Full Name

STEP CAD File

File Extension

.stp

.step

Use STP when you need:

•Files in STEP CAD File 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

Frequently Asked Questions

What is the difference between STP and STEP?

Can I convert STP to STEP for free?

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

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.