UniversalFileViewer is a Flutter package to preview common file types from local files and remote URLs.

Features

• Inline image preview: .jpg, .jpeg, .png, .gif, .bmp, .tiff
• Inline video playback: .mp4, .avi, .mov, .mkv
• Inline PDF preview: .pdf
• Inline Word preview: .docx
• Inline spreadsheet preview: .xls, .xlsx, .csv
• Inline text preview: .txt, .md
• PowerPoint detection: .ppt, .pptx (opens externally)
• Remote URL support: http:// / https:// files are downloaded to temp storage
• External app fallback for unsupported types

Installation

Add this package to your pubspec.yaml:

dependencies:
  universal_file_viewer: latest_version

Usage

Local file:

UniversalFileViewer(
  file: File('/path/to/sample.pdf'),
)

Remote file:

UniversalFileViewer.remote(
  fileUrl: 'https://example.com/sample.pdf',
)

Notes

• .doc (legacy binary Word format) is detected but opened via external app fallback.
• .ppt/.pptx currently use external app fallback (inline preview not yet implemented).

License

This project is licensed under the MIT License. See LICENSE for details.