Open .dgn Files Online — Free DGN Viewer
Open DGN File Online — Free & Instant
No signup required. Works in your browser.
📁 Drag & drop your file here
or click to browse • Max 100MB
✅ Free • ⚡ Instant • 🔒 Secure • 💻 No install
What Is a .dgn File?
A .dgn file is a cad format known as DGN. MicroStation design file This format is created by Bentley Systems and is widely used by engineers, architects, and manufacturers.
DGN files contain structured cad data that requires compatible software to open. With OpenAnyFile, you can view and measure .dgn files directly in your browser without installing any software.
How to Open .dgn Files Online
- Visit OpenAnyFile DGN page
- Drag and drop your .dgn file onto the upload area, or click "Browse" to select it
- OpenAnyFile automatically detects the DGN format using magic byte analysis
- View, analyze, and view and measure your file contents in the browser
- Optionally convert to DWG, PDF or download
Software That Opens .dgn Files
.dgn files are primarily created by Bentley Systems. In the cad space, you may encounter .dgn files from third-party tools, online converters, or export functions. Regardless of the source, OpenAnyFile handles them all.
Open .dgn on Different Platforms
- Windows: Use the original software or upload to OpenAnyFile for instant access
- macOS: Preview may not support .dgn — use OpenAnyFile as a universal viewer
- Linux: Open-source alternatives exist, or use OpenAnyFile in any browser
- Mobile (iPhone/Android): OpenAnyFile works on all mobile browsers
Common .dgn File Problems
Requires MicroStation or compatible viewer
Other common issues include: your OS not recognizing the file extension, the file appearing corrupted after download, or lacking the required software. OpenAnyFile bypasses all these issues with universal format detection.
Convert DGN to Other Formats
DGN files can be converted to 2 formats including DWG, PDF.
Frequently Asked Questions
What is a .dgn file?
A .dgn file is a cad format called DGN. MicroStation design file
How do I open a .dgn file without installing software?
Upload your .dgn file to OpenAnyFile. Our browser-based tool instantly detects and displays it — no downloads needed.
What program creates .dgn files?
.dgn files are typically created by Bentley Systems.
Can I convert .dgn to another format?
Yes. OpenAnyFile converts .dgn to DWG, PDF.
Is it safe to open .dgn files online?
Yes. OpenAnyFile processes files in a secure, isolated environment. Files are automatically deleted and all transfers use HTTPS.
Can I open .dgn on my phone?
Yes. OpenAnyFile works on all mobile browsers including iPhone and Android.