ExtendFS is a read-only ext2, ext3, and ext4 driver for macOS using FSKit. It's plug-and-play, with no kernel extension, external download, or messing with system security settings required. ext4 is one of the most common filesystem formats used by HDDs, SSDs, and USB flash drives formatted on Linux, such as by Ubuntu users. However, ext4 isn't supported by default on macOS and results in an error when you plug one of these devices into your Mac. ExtendFS solves this problem. Enabling the file system extension is easy and only requires you to enable a toggle in System Settings (no rebooting into recovery mode). Once enabled, you can plug in your ext4-formatted drive or open your disk image. Supported volumes will mount automatically, with no command line tools or manual mounting required. Just open the disk in the Finder to access your Linux files. Note that ExtendFS does not support write access to ext2/3/4 volumes and cannot write to files. You can only access files on an existing ext2/3/4 volume created by a Linux computer. Not all ext2/3/4 volumes are currently supported. Please see the "Known Limitations" listed under the website first. ExtendFS is open source with its source code available on GitHub. It is available here on the App Store if you want to support its development.
| Size | 1.8 MB |
|---|---|
| Initial release | |
| Price | $9.99 |
| Platforms | Mac |
| Languages | English |
| Category | Utilities |
| Website | github.com/kthchew/ExtendFS |
| Compatibility | |
|---|---|
| Mac | Requires macOS 15.6 or later. |
App's data is regularly updated.
Last update:
- Fix an issue where volumes that have features enabled which are incompatible with ExtendFS might mount and show inconsistent data. - The casefold feature is now supported. Directories which have the casefold flag marked by a Linux machine will use case-insensitive lookups for its contents. - A volume marked as needing recovery can now try to mount, but it may show a warning that the disk needs repair. ExtendFS cannot currently repair disks; if you see this warning, use fsck on a Linux machine to repair the disk. - Checksums are now verified on a few data structures. There are plans to expand this in the future. - Some additional ext4 features are supported. Check the README file in the GitHub repo for the current full supported feature list. - Fix an issue where reviews might be requested sooner than expected.