Browse free open source C# File Managers and projects below. Use the toggles on the left to filter open source C# File Managers by OS, license, language, programming language, and project status.

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  • 1
    A small utility that lets you toggle hidden (and system) files visualization in Windows Explorer with a combination of keys. The program does NOT require installation and does NOT run in background. It simply works with a shortcut in the menu folder.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 2
    CheckSumTool allows user to calculate different (e.g. CRC, MD5, SHA-variants) checksums for files. It also can verify files against given (list of) checksums.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 3
    ByteSync

    ByteSync

    All-in-One Sync, Backup & Deduplication Tool

    ByteSync is a powerful open-source tool for remote file comparison and synchronization, designed to transfer only what truly matters: the differences. Whether you're syncing large files, backing up remote folders, or handling extensive sets of small files, ByteSync delivers speed, security, and efficiency—without unnecessary data transfers. Compatible with Windows, macOS, and Linux, ByteSync leverages cloud-based orchestration with end-to-end encryption, eliminating the need for VPNs or firewall configurations. No continuous background syncing, no bloat—just fast, on-demand file synchronization between remote devices.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 4
    Simple File Renamer

    Simple File Renamer

    A simple file renaming tool for windows

    Simple File Renamer is a simple file renaming tool capable of renaming multiple files in several modes including features that help insert and delete text into filenames. Simple File Renamer is still in Alpha phase and will hopefully be continuously updated.
    Downloads: 5 This Week
    Last Update:
    See Project
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  • 5
    SubSet is a small file management tool that creates a random subset of files from a large collection and copies them to a target location. It is intended to fill a small MP3 player with random files from a much larger collection.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 6
    Context-Shredder
    With Context-Shredder you can destroy your sensitive files. Choose from simple destruction or shredding by Peter Gutmann 35 times. Eraser -Tool for Windows. An user can create deletion tasks, overwrite the available free space or destroy disk drives with the help of this handy tool. The included Portable -[Context-Shredder] allows the user to navigate and view all the files found on the system. You need the .Net Framework 4.0 from Microsoft.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 7
    Just Converter

    Just Converter

    Local Windows file converter for media, documents, images, and PDFs.

    Just Converter is a privacy-first Windows file converter designed for local processing, broad format support, and a clean desktop workflow. It supports conversion across video, audio, images, documents, and PDF files. The app is built for users who want a native Windows utility instead of relying on online converter websites for normal tasks. Key capabilities include video and audio conversion, audio extraction from video, image conversion, image-to-PDF workflows, document and PDF conversion, PDF merge and split, PDF page export to images, and practical batch tools such as file reordering, output naming, and remembered settings. Just Converter is designed to work locally on the user's device for standard conversion workflows, making it a better fit for private documents, internal files, and users who prefer an offline-capable desktop app.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    KeepUp File Updating Tool

    KeepUp File Updating Tool

    Keep local files current to online sources

    The KeepUp File Updating Tool is a utility designed to simplify and automate the process of keeping local files up-to-date by checking against remote URLs. Ideal for technicians and IT professionals, this tool ensures that you always have the latest versions of critical files, whether they are stored locally on your system or a removable drive.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    All my USB Contents - Storage Catalog

    All my USB Contents - Storage Catalog

    All my USB Contents is a media cataloging tool to index media contents

    All my USB Contents - Storage Catalog is a media cataloging tool to index media contents This utility acts as a helpful librarian to help you keep track of documents, music, videos, and program files. Storage Catalog essentially downloads materials from either a CD or drive into an independent database that you can then organize any way you choose. This is a powerful and quick program that should be handy for both experienced home users and system administrators. The operation at the base of the program is simple: a device (USB / CD / folder) is scanned, the tree is reconstructed recursively with all the folders and files and all informations are stored in a SQlite DB. Now you can unplug the device and assign a category or a comment to each file or folder. You can perform searches by entering the song title, artist, filename and the program tells you on which device the file is. Moreover categorizing the various files and folders you can put everything according to logical group
    Downloads: 2 This Week
    Last Update:
    See Project
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  • 10
    EncrypIT

    EncrypIT

    Program to quickly and easily encrypt or decrypt files or directories

    Program to quickly and easily encrypt or decrypt files or directories using Encrypting File System (EFS) as well as add and remove domain user EFS permissions to a file. There is also a button to view the info on an encrypted file as well as for backing up a users EFS PFX certificate.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Rename from explorer

    Rename from explorer

    Tool to rename multiple files from the Windows Explorer context menu

    Run Renamer.exe to add a shortcut to the SendTo menu. Then select a set of files to be renamed in Windows Explorer, right click, select SendTo menu, and select Renamer to rename all these files. Alternatively: right click one folder to rename all files in that folder.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    This is a .NET (MS Windows) software to easily organise files. It supports batch +Renaming files to ID3(Music/MP3) tags +Trimming +Replacing characters +Removing Duplicates. All these functions are fully *Customisable and all changes can be *Undone!
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    Remove Log Files

    Remove Log Files

    Log file remover oriented for Windows Servers (x86 & x64)

    AutoDeletions is a free, smart and very performant Windows tool, oriented to the IT Specialists and/or Server Administrators, who have to face the problem of cleaning their file systems from old or obsolete files (typically log or old data files), that are systematically produced by the applications running on their company servers. Configuring this tool is very easy and flexible thanks to a single central INI file. AutoDeletions is ideal for batch processing your deletions. You could for example create your own custom scheduled tasks to run this tool daily in the background of your servers, or even decide to run it interactively. It's also possible to configure AutoDeletions to send alert mails concerning errors that may occur during the deletion process.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    SimpleSync aims to be a simple tool to allow users to synchronise two folders. For example it will allow you to synchronize a USB drive and and internal disk for backup purposes.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    SuperSecretary

    SuperSecretary

    A file sorting application for Windows.

    SuperSecretary can sort any types of files into folders to easily manage your photo or music libraries. It can sort by file attributes, EXIF data and more.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 16
    This is a simple Windows Commander. You can use it as an template for your own. It was done to be portable(Only one file), non-installable and open source.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 17
    iTunes Store file validator is an open source addon for Windows. It is aimed for iTunes users who are keen on maintaining or having the goal of achieving iTunes Store file standard tags for all the tracks in their iTunes Music Library.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    Bulk File Manager
    Bulk File Management. C# .NET local file system deduplication and name management utility.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    Symlink Manager

    Symlink Manager

    A program to easily create and manage symbolic links.

    This is a program that allows the easy creation and management of symbolic links on Windows machines.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    XFolder

    XFolder

    a modern file manager designed specifically for macOS

    XFolder is a modern file manager designed specifically for macOS. It integrates core features such as multi-pane views, a smart directory tree, and multi-tab management, aiming to provide a more efficient and flexible file browsing experience than Finder.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    This is a GUI interface to make symbolic link for windows vista(or up)
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    This small C# (mono or MS.NET 3.5 required) console program generates text or html output which lists directories and files. Copies of directory or file names will be marked in HTML output. I use it to find files in a messy company network.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    A software for monitoring a folder.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Luba Filewatcher

    Luba Filewatcher

    Monitors directories for changes, executing a user-defined application

    Monitors directories / folders for changes in the containing files. Executing a user-defined application with variable command line parameters and displaying a user defined notification message. It is useful especially to programmers who need to track down modifications within their project during the development process. It is easy to configure and user interface expose a detailed overview.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    An alternative to the native Windows Explorer, focused on a minimalistic interface but full of features.
    Downloads: 1 This Week
    Last Update:
    See Project
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