File Viewer vs Ultra File Opener
| File Viewer | Ultra File Opener | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | Yes |
| Paid from | — | — |
| Open source | No | No |
| Platforms | self-hosted, Web | Windows |
| Primary access | web | desktop |
| Archive preview | Yes | Yes |
| Office file preview | Yes | Yes |
| Code file preview | Yes | Yes |
| In-file search | Yes | — |
| Free plan | — | Yes |
Both are listed in Best File Viewer Software. On Samsung Mobile US Press, File Viewer scores higher on our published basis.