The current iOS 18 and iPadOS 18 beta allows users to format external drives connected to their device, with no need for a Mac, according to a report from MacStories.
In his ByteBits substack, Kaleb Cadle wrote that he discovered new file format options while tinkering with the Files app:
Now in the Files app on iPadOS 18, when we right click or hold press on an external drive and select “Erase”, new options appear for reformatting the drive. Currently, the format options here are APFS (with options for Case Sensitive or Encrypted), ExFAT, and MS-DOS (FAT), the same format options available in Disc Utility (with the exception of macOS extension formats which wouldn’t make much sense for this feature on iPadOS). This is a major improvement for iPad power users and it will be interesting to keep an eye out for new improvements to this functionality and others within the Files app over the course of the iPadOS 18 beta cycle. It seems Apple may be taking a similar tact to the way they incorporated much of the functionality of the Preview app into the Files app via Quick Look, but now with functionality from Disc Utility.
iPadOS 18 and iOS 18 are currently in their initial developer beta round. Apple plans to release the second betas of the operating systems to developers on Monday.