OSU File Viewer Online
Open and preview .osu files (OSU File) directly in your browser — no downloads, no installs, no account required.
Open OSU File Now →About OSU Files
| Extension | .osu |
| Full Name | OSU File |
| MIME Type | application/octet-stream |
| Category | 📄 Documents |
| Processing | 🔒 In-browser (private) |
How to Open OSU Files Online
- Visit ViewAnyFile.app
Go to ViewAnyFile.app in any web browser.
- Upload your OSU file
Drag and drop your
.osufile, or click to browse. - View instantly
Your file renders immediately. It stays in your browser — nothing is uploaded.
Frequently Asked Questions
How do I open a OSU file online?
Visit ViewAnyFile.app and drag your .osu file into the upload area. It renders instantly — no download or account needed.
Is it safe to open OSU files on ViewAnyFile.app?
Yes. All processing for OSU files happens entirely inside your browser. Your files never leave your device and are never uploaded to any server.
Can I open OSU files on Mac and mobile?
Yes. ViewAnyFile.app works in any modern browser on Windows, macOS, Linux, iPhone (Safari), and Android (Chrome). No operating system restrictions.
Do I need to create an account?
No. ViewAnyFile.app is 100% free with no signup required. Just drag, drop, and view.