Gocryptfs is an encrypted overlay filesystem written in Go. It features a file-based encryption that is implemented as a mountable FUSE filesystem.

Gocryptfs was inspired by EncFS and strives to fix its security issues while providing good performance. Gocryptfs is as fast as EncFS in the default mode and significantly faster than paranoia mode in EncFS, which provides a security level comparable to Gocryptfs.

On CPUs without AES-NI, gocryptfs uses OpenSSL through a thin wrapper called stupidgcm. This provides a 4x speedup compared to Go's builtin AES-GCM implementation.

bindfs is a FUSE file system for mounting a directory to another location, similar to mount --bind. It can be used for:

• Making a directory read-only.

• Making all executables non-executable.

• Sharing a directory with a list of users (or groups).

• Modifying permission bits using rules with chmod-like syntax.

• Changing the permissions with which files are created.

mergerfs-tools is a suite of programs that can audit permissions and ownership of files and directories on a mergerfs volume, duplicates files and directories across branches in its pool, find and remove duplicate files, balance pool drives, consolidate files in a single mergerfs directory onto a single drive and create FreeDesktop.org Trash specification compatible directories.

DwarFS is a read-only file system with a focus on achieving very high compression ratios in particular for very redundant data.

DwarFS also doesn't compromise on speed and for some cases it is on par with or performs better than SquashFS. For the primary use case, DwarFS compression is an order of magnitude better than SquashFS compression, it's 6 times faster to build the file system, it's typically faster to access files on DwarFS and it uses less CPU resources.

Distinct features of DwarFS are:

• Clustering of files by similarity using a similarity hash function. This makes it easier to exploit the redundancy across file boundaries.

• Segmentation analysis across file system blocks in order to reduce the size of the uncompressed file system. This saves memory when using the compressed file system and thus potentially allows for higher cache hit rates as more data can be kept in the cache.

• Highly multi-threaded implementation. Both the file system creation tool as well as the FUSE driver are able to make good use of the many cores of your system.

• Optional experimental Python scripting support to provide custom filtering and ordering functionality.

Watcher may be used as a library or a program that can be used to efficiently watch a file system for changes. This package provides the following components:

include/wtr/watcher.hpp

C++ header library

watcher-c

C shared and static library

wtr.watcher

Command-line interface (CLI)

tw

Minimal, more human-readable CLI variant

Autofs is a kernel-based automounter for use with the Linux autofs4 module. It automatically mounts selected file systems when they are used and unmounts them after a set period of inactivity. This provides centrally-managed, consistent file names for users and applications, even in a large and/or frequently changing (network) environment.

This package provides the bcachefs command-line tool with many subcommands for creating, checking, and otherwise managing bcachefs file systems. Traditional aliases like mkfs.bcachefs are also included.

Bcachefs is a CoW file system supporting native encryption, compression, snapshots, and (meta)data checksums. It can use multiple block devices for replication and/or performance, similar to RAID.

In addition, bcachefs provides all the functionality of bcache, a block-layer caching system, and lets you assign different roles to each device based on its performance and other characteristics.

This package provides the bcachefs command-line tool with many subcommands for creating, checking, and otherwise managing bcachefs file systems. Traditional aliases like mkfs.bcachefs are also included.

Bcachefs is a CoW file system supporting native encryption, compression, snapshots, and (meta)data checksums. It can use multiple block devices for replication and/or performance, similar to RAID.

In addition, bcachefs provides all the functionality of bcache, a block-layer caching system, and lets you assign different roles to each device based on its performance and other characteristics.

This package provides an implementation of the exFAT file system, including command-line tools to validate exFAT file systems and to create new ones.

TMSU is a tool for tagging your files. It provides a simple command-line utility for applying tags and a virtual file system to give you a tag-based view of your files from any other program. TMSU does not alter your files in any way: they remain unchanged on disk, or on the network, wherever your put them. TMSU maintains its own database and you simply gain an additional view, which you can mount where you like, based upon the tags you set up.

RewriteFS is a FUSE to change the name of accessed files on the fly based on any number of regular expressions. It's like the rewrite action of many Web servers, but for your file system. For example, it can help keep your home directory tidy by transparently rewriting the location of configuration files of software that doesn't follow the XDG directory specification from ~/.name to ~/.config/name.

Libeatmydata transparently disables most ways a program might force data to be written to the file system, such as fsync() or open(O_SYNC).

Such synchronisation calls provide important data integrity guarantees but are expensive to perform and can significantly slow down software that (over)uses them.

This price is worth paying if you care about the files being modified---which is typically the case---or when manipulating important components of your system. Please, do not use something called ``eat my data'' in such cases!

However, it does not make sense to accept this performance hit if the data is unimportant and you can afford to lose all of it in the event of a crash, for example when running a software test suite. Adding libeatmydata.so to the LD_PRELOAD environment of such tasks will override all C library data synchronisation functions with custom no-op ones that do nothing and immediately return success.

A simple eatmydata script is included that does this for you.

fscrypt is a high-level tool for the management of Linux native filesystem encryption. It manages metadata, key generation, key wrapping, PAM integration, and provides a uniform interface for creating and modifying encrypted directories.

An alternative implementation of the zfs-auto-snapshot service for Linux that is compatible with zfs-linux (now OpenZFS) and zfs-fuse.

On Guix System, you will need to invoke the included shell scripts as job definitions in your operating-system declaration.

BEES is a block-oriented, user-space deduplication agent designed for large btrfs file systems. It combines off-line data deduplication with incremental scanning to minimize the time your data spend on disk between being written and being deduplicated.

Squashfuse lets you mount SquashFS archives in user-space. It supports almost all features of the SquashFS format, yet is still fast and memory-efficient.

httpfs2 is a fuse file system for mounting any HyperText (HTTP or HTTPS) URL. It uses HTTP/1.1 byte ranges to request arbitrary bytes from the web server, without needing to download the entire file. This is particularly useful with large archives such as ZIP files and ISO images when you only need to inspect their contents or extract specific files. Since the HTTP protocol itself has no notion of directories, only a single file can be mounted.

These are command-line user space tools for the exFAT file systems. Included are mkfs.exfat to create (format) new exFAT file systems, and fsck.exfat to check their consistency and repair them.

NILFS is a log-structured file system supporting versioning of the entire file system and continuous snapshotting, which allows users to even restore files mistakenly overwritten or destroyed just a few seconds ago.

This package provides the Linux kernel module for Bcachefs.

Bcachefs is a CoW file system supporting native encryption, compression, snapshots, and (meta)data checksums. It can use multiple block devices for replication and/or performance, similar to RAID.

In addition, Bcachefs provides all the functionality of bcache, a block-layer caching system, and lets you assign different roles to each device based on its performance and other characteristics.

This package provides an implementation of overlay+shiftfs in FUSE for rootless containers.

FSArchiver saves the contents of a file system to a compressed archive file, and restores it to a different file system and/or partition. This partition can be of a different size than the original and FSArchiver will create a new file system if none exists.

All standard file attributes supported by the kernel are preserved, including file permissions, timestamps, symbolic and hard links, and extended attributes.

Each file in the archive is protected by a checksum. If part of the archive is corrupted you'll lose the affected file(s) but not the whole back-up.

SiriKali is a Qt/C++ GUI application for managing encrypted folders. It supports various backends, including eCryptfs, CryFS, EncFS, gocryptfs, fscrypt, securefs, SSHFS, and Cryptomator.

udftools is a set of programs for reading and modifying UDF file systems. UDF is a file system mostly used for DVDs and other optical media. It supports read-only media (DVD/CD-R) and rewritable media that wears out (DVD/CD-RW).