Can I change the default file manager on Android?

Last reviewed: October 10, 2026 · Markdown version

Not as a setting you can point to. Neither Google's nor Samsung's guide to default apps mentions a file manager, and Android's own list of predefined app roles has no file-manager entry. What you can change is which app opens a given kind of file, and which file app sits where your thumb lands. That covers most of what people mean when they ask, on Android 13, 14 or later.

What the Default apps screen covers

On a Pixel, Google's route is Settings › Apps › Default apps, "Tap the default app that you want to change", then pick the replacement. The page explains the idea with photo editors — "if you have multiple photo editing apps, you can choose which one to use to open a photo" — and warns that "Some of these steps only work on Android 14 and up" (Set or clear default apps on your Pixel phone or Pixel Tablet, Pixel Phone Help, read 10 October 2026). It does not list the categories the screen offers, and it never uses the words "file manager".

Samsung's version is Settings › Apps › Choose default apps, then "Select an app you would like to change". Its examples are "a particular browser to open all your web links or a specific messaging app to handle all of your texts"; a file manager is not among them (How to set Default Apps on my Galaxy Phone, Samsung Australia, read 10 October 2026; page dated Jul 01. 2025).

Why there is no slot for it

Android hands out defaults through "roles". Its developer reference describes a role as "a unique name within the system associated with certain privileges", and the predefined names it lists are for things like the browser, the dialer, SMS, the home screen, the assistant, notes and the wallet — no file manager among them. The same page adds that "The list of available roles might change with a system app update" (RoleManager, Android Developers, read 10 October 2026). So the absence is a fact about today's list, not a promise.

What you can change: the app that opens a file

When you tap a file and Android asks which app to use, Google's page gives two answers: "Always" means "Your device won't ask which app to use anymore", and "Just once" uses it that one time. If you chose wrongly, go to Settings › Apps, pick the app that grabbed the file type, then Open by default › Clear default preferences; after that, "your device will ask you which app to use" again (Pixel page above). That is per kind of file — PDFs to one app, photos to another — and it is the closest thing to a default file manager that Google documents.

What stays as it is

The picker you see when another app asks you to choose a document is not your chosen file manager either. Google's developer guide says an app asking for a document "opens the system's file picker app" (Access documents and other files from shared storage, Android Developers, read 10 October 2026), which is why it can look nothing like the app on your home screen — the three layers people call a file manager explains it. The maker's own app also stays: on a Galaxy, My Files is part of the phone, and it cannot be uninstalled.

The practical version

Our suggestion: install the file app you like, put it on the home screen or dock where the old one was, and answer "Always" the first time a file type asks. If the new app needs to see files beyond its own, it will ask for a special permission — what that permission grants is worth reading before you switch it on.