NAS Guard Help

File Browser
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File Browser
Browse and preview files on your TrueNAS

NAS Guard includes a built-in file browser that navigates your TrueNAS filesystem directly via the API (filesystem.listdir). No SMB or NFS setup required.

How it works

  • Browse directories by tapping into them. Files and folders are sorted alphabetically with folders first.
  • Tap a file to open it in QuickLook, the built-in audio player, or the built-in video player.
  • Files are downloaded temporarily to your iPhone for preview and cleaned up automatically.
  • Maximum download size for QuickLook preview is 50 MB.

QuickLook preview (documents & images)

The following file types are supported for QuickLook preview:

  • Images: jpg, jpeg, png, gif, heic, webp, tiff, bmp
  • Documents: pdf, txt, log, conf, cfg, json, xml, yaml, yml, md, rtf, csv, html, htm
  • Source code: sh, py, rb, pl, go, rs, c, h, cpp, hpp, swift, css, js, ts, sql, ini, properties, toml
  • Office: doc, docx, xls, xlsx, ppt, pptx, pages, numbers, key

Audio player

The built-in audio player supports:

  • mp3, flac, wav, aac, ogg, m4a

The audio player includes a visualizer with bars and waveform modes.

Video player & streaming

The built-in video player supports the following container formats:

  • mp4, mov, m4v, mkv, avi, webm, wmv, flv, mpg, mpeg, ts, m2ts, mts, 3gp
Streaming via Agent: If the NAS Guard Agent is installed and reachable, videos are streamed directly without downloading the full file first. The Agent provides a direct stream endpoint and an HLS remux endpoint for formats that AVPlayer cannot play natively.

File icons

Files are displayed with type-specific icons:

  • Images: photo icon
  • Videos: film icon
  • Audio: music note icon
  • PDF: richtext document icon
  • Archives (zip, tar, gz, 7z, rar, bz2): zipper icon
  • Disk images (iso, img): optical disc icon
  • Text/config (txt, log, conf, cfg, md, rtf, csv, ini, properties, toml): text icon
  • Structured data (json, xml, yaml, yml, html, htm): text-below-ecg icon
  • Source code (sh, py, rb, pl, go, rs, c, h, cpp, hpp, swift, js, ts, css): code icon
  • Databases (db, sqlite, sql): cylinder icon
  • Other: generic document icon