Browsing files

The Drive tab and the Library list images. The file browser shows the folders themselves, so you can look at everything else that’s on there — Ventoy’s config, a theme’s files, a readme.txt you left behind.

Opening it

• Drive tab — Browse files in the controls row.
• Library tab — the same action, for the images stored on your phone.
• Tools → EFI partition — goes straight to the drive’s boot partition.

Once you’re in, a Files / EFI toggle switches between the drive’s two partitions without leaving.

Getting around

Folders are listed first, then files. Tap a folder to go in; the breadcrumb trail at the top takes you back to any level above. An empty folder says so rather than showing you a blank screen.

Back steps out one level at a time: an open file first, then the browser itself.

Reading text files

Tap a text file and it opens in a built-in viewer. This is free, on every surface.

The viewer handles the file types a Ventoy drive actually carries: .txt, .cfg, .conf, .json, .ini, .log and .md. Anything else, an ISO included, isn’t offered for viewing.

Large files are shown from the beginning, up to 256 KB, and the viewer tells you when it’s showing you only part of a file rather than quietly truncating it.

Editing (Pro)

With Pro, a text file gains Edit this file and a Save. The point of it is Ventoy’s own configuration — ventoy.json and ventoy_grub.cfg — which is otherwise a job for a PC.

New file creates one in the folder you’re in. Text files only, so give it a name like ventoy_grub.cfg or notes.txt, with plain letters, digits and symbols. The app won’t let you reuse a name that folder already has.

If a save fails, nothing on the drive is changed. And if you press back with unsaved edits, you’re asked before anything is discarded.

Browsing and viewing stay free. The paywall is on writing, not on looking.

The EFI partition is read-only

You can browse the drive’s EFI partition and read what’s on it, but nobody can write to it from BootForge, Pro included. It’s a FAT16 volume and the app has no writer for that filesystem.

That’s less of a limitation than it sounds. Ventoy’s own grub.cfg on that partition says your custom configuration belongs on partition 1, which is the Files side — exactly where the editor works.

Deleting

A file can be deleted from the browser. It’s removed from the drive permanently and can’t be undone, and the confirmation names the file first.