Open .inp Files Online Free — No Software Needed
Open ORCA 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 .inp File?
ORCA (.inp) is a scientific file format. ORCA Input File It is commonly used by researchers and academics and created by Max Planck.
Step-by-Step: How to Open .inp Files in 2026
Follow these steps to open any .inp file online without installing software:
- Go to OpenAnyFile: Navigate to openanyfile.app
- Upload: Drag and drop your .inp file or click Browse
- Auto-detection: The system identifies the ORCA format using signature analysis
- View: Analyze and visualize the file contents in the browser
- Analyze: Use AI-powered analysis to understand the file structure and metadata
- Convert: Optionally convert to TXT
Software That Opens .inp Files
Windows
Max Planck can open .inp files natively on Windows. Alternatively, use OpenAnyFile for instant browser access.
macOS
macOS may not natively support .inp files. Use the original application or OpenAnyFile.
Linux
Open-source alternatives or OpenAnyFile provide .inp support on Linux.
Mobile (iPhone & Android)
OpenAnyFile works on all mobile browsers — no app download required.
Common Problems Opening .inp Files
- Your OS doesn't recognize the .inp extension
- The file appears corrupted after downloading
- You don't have Max Planck installed
- Keyword syntax
OpenAnyFile bypasses all these issues with universal format detection that works in any browser.
Convert ORCA to Other Formats
Frequently Asked Questions
What is a .inp file?
A .inp file is a scientific format called ORCA. ORCA Input File
How do I open a .inp file without installing software?
Upload your .inp file to OpenAnyFile. Our browser-based tool instantly detects and displays it — no downloads needed.
What program creates .inp files?
.inp files are typically created by Max Planck.
Can I convert .inp to another format?
Yes. OpenAnyFile converts .inp to TXT.
Is it safe to open .inp files online?
Yes. OpenAnyFile processes files in a secure, isolated environment. Files are automatically deleted and all transfers use HTTPS.
Can I open .inp on my phone?
Yes. OpenAnyFile works on all mobile browsers including iPhone and Android.