Yes! Convert999 works on any device with a web browser — iPhone, Android, iPad, or desktop. No app installation required. Simply open the converter, upload your STP file, and download the converted DGN file.
Will I lose quality converting STP to DGN?
Convert999 uses high-quality conversion algorithms to minimize quality loss. For lossless formats, the conversion is exact. For lossy formats like images and audio, we use optimized settings that balance quality and file size.
Can I batch convert multiple STP files to DGN?
Yes, Convert999 supports batch conversion. Select or drag & drop multiple STP files and convert them all to DGN format at once. Each file is processed locally in your browser.
What is the difference between STP and DGN?
STEP CAD File (STP) and MicroStation Design (DGN) differ in compression, compatibility, and features. STP is optimized for its native use cases, while DGN may offer different advantages. Visit our STP vs DGN comparison page for a detailed breakdown.
Why Convert STP to DGN?
Advantages
✓MicroStation Design offers better compatibility with modern applications and workflows
✓Converting is completely free with no file size limits on Convert999
✓Your files never leave your device — 100% private and secure conversion
✓Instant conversion without waiting for server processing
Key Differences
→STP (STEP CAD File) is optimized for its native use cases
→DGN (MicroStation Design) may offer different compression or feature set
→Choose based on your target platform, quality needs, and file size requirements