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

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  • 1
    OfficeCLI

    OfficeCLI

    OfficeCLI is the first and best command-line tool

    OfficeCLI is a command-line productivity tool designed to bring AI-powered automation into everyday office workflows, enabling users to perform tasks such as document generation, data processing, and communication management directly from the terminal. It focuses on simplifying repetitive business operations by translating natural language commands into structured actions. The system likely integrates with common office tools and formats, allowing seamless interaction with documents, spreadsheets, and communication platforms. Its CLI-based design emphasizes speed and efficiency, making it ideal for power users who prefer terminal-driven workflows. It also supports extensibility, enabling users to customize commands and integrate additional services. The project bridges the gap between traditional office software and modern AI-driven automation. Overall, OfficeCLI provides a streamlined interface for managing productivity tasks with intelligent assistance.
    Downloads: 51 This Week
    Last Update:
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  • 2
    Duplicati

    Duplicati

    Store securely encrypted backups in the cloud!

    Duplicati is a free and open source backup client for securely storing your data. Duplicati stores encrypted, incremental, compressed backups on cloud storage services and remote file servers using AES-256 encryption, keeping your data safe and always updated. It works with most storage services, including Google Cloud and Drive, Amazon S3, Microsoft Azure and OneDrive, Dropbox, FTPOpenStack Storage (Swift), SSH (SFTP), WebDAV, Tencent Cloud Object Storage (COS), and more! Duplicati also works on all major platforms (Windows, Linux and OSX). Unlike many other backup solutions, Duplicati ensures that your data is stored securely far away and updated regularly. Incremental updates means it saves on bandwidth and storage space, with a scheduler that automatically keeps your backups up to date.
    Downloads: 7 This Week
    Last Update:
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  • 3
    GitForce

    GitForce

    A visual front end to git

    Git is a popular source revision control system. GitForce is a GUI front-end for the git command line tool and runs on both Windows and Linux. It is designed to be easy and intuitive to use and yet powerful enough so you don't need to use a command line git.
    Downloads: 7 This Week
    Last Update:
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  • 4

    TextFileReverse

    A Windows command line tool to reverse the contents of a text file.

    A simple command line tool, drop the Reverse.exe into the %systemroot% directory in Windows to call the program from the command line. Then just call like: Reverse /i Path\File.txt and the file will be overwritten with reversed text. Or an outfile can be specified Reverse /i Path\File.txt /o path\OutFile.txt this will leave the original file intact. A file containing: item 1 item 2 item 3 Would then be reversed to item 3 item 2 item 1 You can also remove blank lines with the switch /r, as of 1.0.1.0
    Downloads: 3 This Week
    Last Update:
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  • 5
    ES-DOS A
    ES-DOS is a application for windows that looks like MS-DOS but is not a OS
    Downloads: 5 This Week
    Last Update:
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  • 6
    Flacattack is a command line tool that was designed to simplify the CD ripping and encoding process. It can be used in conjunction with Flac and Exact Audio Copy as well as other tools to encode your files to various formats in one pass.
    Downloads: 2 This Week
    Last Update:
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  • 7
    DevProjex

    DevProjex

    Turn any codebase into clean AI-ready context: GUI, TUI, CLI, MCP

    DevProjex turns any folder or Git repository into clean, token-efficient context for AI assistants and coding agents, and shows exactly what leaves your machine before you send it. Use it as a desktop app (GUI), a keyboard-first terminal workspace (TUI), a scriptable CLI for CI, or a read-only MCP server for Claude Code, Cursor, and other agents. An open-source alternative to Repomix, gitingest, and code2prompt, with a visual file tree and live preview. Smart Ignore drops build output, dependencies, and caches based on real project evidence; Git modes pack only tracked, staged, changed, or diff files. Hide Secrets masks API keys, tokens, and passwords in every export; optional masking covers emails, IPs, and user paths. Syntax-aware compression keeps signatures and drops bodies across 20 languages, making code about 3x smaller. Export to Markdown, JSON, XML, ASCII, or save a clean project copy as a folder or ZIP. Windows, Linux, macOS. Read-only, no telemetry, no account.
    Downloads: 3 This Week
    Last Update:
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  • 8

    OSPC

    Open Software Plagiarism Checker

    A open source software plagiarism checker. It checks the similarity of individual files and generates various types of reports. Also it is able to find groups of similar submissions.
    Downloads: 3 This Week
    Last Update:
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  • 9

    UltraDBC

    Microsoft SQL Server database data compare tool

    Command line tool, that compares Microsoft SQL Server table data between tables with the same columns in different databases. Original databases are not modified. Results are saved as SQL command file or displayed to the console. Multi threaded, open sourced project, that should fill empty niche for this kind of freeware software. As a command line application it can easily be used in batch processing.
    Downloads: 3 This Week
    Last Update:
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  • 10
    Tagger#

    Tagger#

    Command-line media (audio/video/photo) tagger based on TagLib#

    Command-line tool for reading and writing metadata in media files, including video, audio, and photo formats. Based on TagLib#: https://github.com/mono/taglib-sharp. Requires .NET 3.5 SP1.
    Downloads: 1 This Week
    Last Update:
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  • 11
    ExLock

    ExLock

    File Lock Test Tool

    Exlock is a command line tool. The purpose of this tool is to test / debug / tune the creation of other software. Exlock opens in exclusive mode a file passed as parameter. Other processes accessing the file will get a error. The purpose of this tool is to simply evaluate which is the behavior in case of this error.
    Downloads: 2 This Week
    Last Update:
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  • 12
    MovieSieve
    A simple command line tool, that takes a RSS feed of movie torrents, takes the good quality ones (based on the name) and checks IMDB for their rating. If it is higher than a predefined margin it downloads the torrent.
    Downloads: 1 This Week
    Last Update:
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  • 13
    This tool provides User Interface for command-line tool SqlMetal which can generate code and mapping for the LINQ to SQL component of the .NET Framework.
    Downloads: 1 This Week
    Last Update:
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  • 14
    Banner is a port of the Unix and Linux command-line tool with the same name. It displays the text provided in the argument in ASCII art. For more apps and C# code please visit my blog: http://codehill.com
    Downloads: 1 This Week
    Last Update:
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  • 15
    Amnesia CLI

    Amnesia CLI

    Modding CLI tool kit for Amnesia: The Dark Descent

    A CLI tool kit for creation and management of Amnesia: The Dark Descent mods / custom stories. Manages game/engine log files, creates templates of mods, validates and cleans script files, assets, and more.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Crc32.NET is a command line tool written in C# which can verify the CRC32 of a file or set of files, comparing the calculated value against the value stored in the file name (if any). It can also add, remove, or update CRC32 values in a file name.
    Downloads: 1 This Week
    Last Update:
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  • 17
    Crypt-Gui is a small, simple and C# based gui related to the nice encryption command-line tool named Crypt, written by Animesh Srivastava.
    Downloads: 1 This Week
    Last Update:
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  • 18
    DataBaseMerge is a command line tool, that merges database structures.
    Downloads: 1 This Week
    Last Update:
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  • 19

    Mobi Batch 2013

    Massive epubs to mobi converter.

    I wrote this program because I had to convert my large collection of epubs to mobi format. It wraps kindlegen, the amazon command line tool, with a suitable interface and repeatedly calls it until last file loaded is processed. In order to get it properly working on your PC you have to intall the .n
    Downloads: 1 This Week
    Last Update:
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  • 20
    A command-line tool to convert between file formats, which are supported by OpenOffice.org (.doc, .xls, .odt, .odg, etc) and PDF. Documents can be append to a PDF and the count of pages returns. Requires the OOo, OOo SDK and .Net Framework.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    The Systems Biology Results Markup Language is a language describing data. Unlike flat data formats, SBRML allows describing the origin of the data as well. This project hosts a library and tools for using SBRML.
    Downloads: 1 This Week
    Last Update:
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  • 22
    Z-SQL is a package-oriented SQL language designed for Microsoft SQL Server. Full language specification is provided. The compiler translates Z-SQL to SQL Server's native T-SQL. A command line tool, zsql, that superseeds osql is also included.
    Downloads: 1 This Week
    Last Update:
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  • 23
    m:sync is a command line tool written in c# that can be used to sync mp3s to the m:robe 100 mp3 player. it effectively replaces the proprietary mp3 software, m:trip and allows for more user friendly synchronization.
    Downloads: 1 This Week
    Last Update:
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  • 24

    sar

    search and replace command line tool

    this command line tool can be used to search and replace text within files.
    Downloads: 1 This Week
    Last Update:
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  • 25
    AddHeaderToCS is a command line tool, that adds header to files (to .cs files by default) in current directory and all sub-directories. For an example, you can add copiright header to all your source .cs files.
    Downloads: 0 This Week
    Last Update:
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