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