Best Application Development Software for C#

Cody

Sourcegraph

Cody, Sourcegraph’s AI code assistant goes beyond individual dev productivity, helping enterprises achieve consistency and quality at scale with AI. Unlike traditional coding assistants, Cody understands the entire codebase, enabling deeper contextual awareness for smarter autocompletions, refactoring, and AI-driven code suggestions. It integrates with IDEs like VS Code, Visual Studio, Eclipse, and JetBrains, providing inline editing and chat without disrupting workflows. Cody also connects with tools like Notion, Linear, and Prometheus to enhance development context. Powered by advanced LLMs like Claude Sonnet 4 and GPT-4o, it optimizes speed and performance based on enterprise needs, and is always adding the latest AI models. Developers report significant efficiency gains, with some saving up to six hours per week and doubling their coding speed.

87 Ratings

Starting Price: $59

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Pdftools

PDF Tools

Whether you have thousands of documents or millions, Pdftools has the products and services to help make processing a breeze. Designed for document-heavy industries, Pdftools’ suite of SDKs and APIs are here to make your document workflows easier, faster, and stress-free. Built on SDKs and APIs, the Pdftools products integrate seamlessly into your existing (or new) systems and applications. Process thousands of documents every minute. Our tools are precision-engineered to be efficient and run at blazing speeds. We’re engineers at heart, so we’re only satisfied with the most reliable, orderly, and usable, and well-documented platforms. Shrink file sizes down, but keep the quality and interactivity. Your documents will always be compliant for long-term archiving. We’ve obsessed over every detail in our products, and documented everything so it’s easy to get started.

13 Ratings

Starting Price: $0/month/user

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DbVisualizer

DbVisualizer is one of the world's most popular database editors. With almost 7 million downloads and Pro users in 150 countries worldwide, it won't disappoint you. Free and Pro versions are available. Developers, analysts, and DBAs use it to elevate their SQL experience with modern tools to visualize and manage their databases, schemas, objects, and table data, auto-generate, write, and optimize queries, and so much more. It connects to all popular databases, such as MySQL, PostgreSQL, SQL Server, Oracle, Cassandra, Snowflake, SQLite, BigQuery, and 30+ others, and runs on all popular OSes (Windows, macOS, and Linux). A powerful SQL editor with intelligent autocomplete, visual query builders, variables, and more. You can fully control window layouts, key bindings, UI theme, mark scripts, and database objects as favorites for quick access or even work outside of DbVisualizer. DbVisualizer is also built to meet rigorous security standards, all configurable within the product.

488 Ratings

Starting Price: Free

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Windsurf Editor

Windsurf

The Windsurf Editor is a free AI-powered IDE and AI coding assistant that accelerates development by providing intelligent code generation and agents in over 70 programming languages and more than 40 IDEs, including VSCode, JetBrains, and Jupyter Notebooks. With Windsurf, developers can write code faster, eliminate repetitive tasks, and stay in the flow state—whether they're working with Python, JavaScript, C++, or any other language. Built on billions of lines of open-source code, Windsurf Editor understands and anticipates your coding needs, offering multiline suggestions, automated unit tests, and even natural language explanations for complex functions. It’s perfect for streamlining code writing, reducing boilerplate, and cutting down the time spent on documentation searches. Trusted by individual developers and Fortune 500 companies alike, Windsurf Editor is your go-to solution for boosting productivity and writing better code. Try Windsurf for free today!

137 Ratings

Starting Price: Free

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Parasoft

Parasoft helps organizations continuously deliver high-quality software with its AI-powered software testing platform and automated test solutions. Supporting embedded and enterprise markets, Parasoft’s proven technologies reduce the time, effort, and cost of delivering secure, reliable, and compliant software by integrating everything from deep code analysis and unit testing to UI and API testing, plus service virtualization and complete code coverage, into the delivery pipeline. A powerful unified C and C++ test automation solution for static analysis, unit testing and structural code coverage, Parasoft C/C++test helps satisfy compliance with industry functional safety and security requirements for embedded software systems.

125 Ratings

Starting Price: $125/user/mo

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Kiuwan Code Security

Kiuwan

Security Solutions For Your DevOps Process. Automatically scan your code to identify and remediate vulnerabilities. Compliant with the most stringent security standards, such as OWASP and CWE, Kiuwan Code Security covers all important languages and integrates with leading DevOps tools. Effective static application security testing and source code analysis, with affordable solutions for teams of all sizes. Kiuwan includes a variety of essential functionality in a single platform that can be integrated directly into your internal development infrastructure. Fast Vulnerability Detection: Easy and instant setup. Start scanning and get results in just minutes. DevOps Approach To Code Security: Integrate Kiuwan with your Ci/CD/DevOps pipeline to automate your security process. Flexible Licensing Options: Plenty of options, one time scans or continuous scanning. Kiuwan also offers a Saas or On-Premise model.

11 Ratings

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PimNote

Pimtel

PimNote is a simple text editor for faster document access. It also combines the useful and lacking features of all other text editors. Designed for knowledge management. One-click access to the recent file list helps you write a new idea to the related file quickly before forgetting it. The unlimited and searchable recent file list helps you easily reach an old file that was opened a long time ago. The one-click find history list and search help you type less. Designed for remote working. No freezing from a remote file monitoring/opening/writing when disconnected. Files are cached for offline use by just closing the application without closing the tabs. Auto reconnect the network drive while opening the file. Repeated file notifications are informed politely on the top bar instead of a pop-up dialog box that requires frequent actions and tends to be mispressed.

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Studio 3T

Auto-complete queries in a built-in mongo shell that highlights syntax errors as you type and saves your query history. Perfect for MongoDB beginners, a time-saver for pros. Use a drag-and-drop UI to build complex find() queries and filter array elements. Break down aggregation queries into manageable steps and build them stage by stage, for easier debugging and querying. Generate instant code in JavaScript (Node.js), Java (2.x and 3.x driver API), Python, C#, PHP, and Ruby from MongoDB and SQL queries that you can copy and paste into your application. Save MongoDB imports, exports, data comparisons, and migrations as tasks that you can run on demand. Or even better, skip the reminders and schedule them to run exactly when you need them. Make changes to your collection’s schema in just a few clicks, perfect for schema performance tuning, restructuring, or cleaning up after data migration.

Starting Price: $499/year/user

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Sublime Text

Sublime HQ

A sophisticated text editor for code, markup and prose. Use Goto Anything to open files with only a few keystrokes, and instantly jump to symbols, lines or words. Make ten changes at the same time, not one change ten times. Multiple selections allow you to interactively change many lines at once, rename variables with ease, and manipulate files faster than ever. The Command Palette holds infrequently used functionality, like sorting, changing the syntax and changing the indentation settings. With just a few keystrokes, you can search for what you want, without ever having to navigate through the menus or remember obscure key bindings. Sublime Text has a powerful, Python API that allows plugins to augment built-in functionality. Package Control can be installed via the command palette, providing simple access to thousands of packages built by the community.

21 Ratings

Starting Price: $80 one-time fee

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Web Scraping API & Proxy Server ZenRows API handles rotating proxies, headless browsers and CAPTCHAs for you. Easily collect content from any website with a simple API call. ZenRows will bypass any anti-bot or blocking system to help you obtain the info you are looking for. For that, we include several options such as Javascript Rendering or Premium Proxies. There is also the autoparse option that will return structured data automatically. It will convert unstructured content into structured data (JSON output), with no code necessary. ZenRows offers a high accuracy and success rate without any human intervention. No more CAPTCHAs or setting up proxies; it will be handled for you. Some domains are especially complicated (i.e., Instagram), and for those, Premium Proxies are usually required. After enabling them, the success rate will be equally high. In case the request returns an error, we will not compute nor charge that request. Only successful requests will count.

3 Ratings

Starting Price: $49/month

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Debricked

Debricked's tool enables for increased use of Open Source while keeping associated risks at bay, making it possible to keep a high development speed while still staying secure. The service runs on state of the art machine learning, allowing the data quality to be outstanding as well as instantly updated. High precision (over 90% in supported languages) in combination with flawless UX and scalable automation features makes Debricked one of a kind and the way to go for open source management. Recently, debricked released their new platform by the name of Open Source Select where open source projects can be compared, evaluated and monitored to ensure high quality and community health.

2 Ratings

Starting Price: Free

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Thinfinity VirtualUI

Cybele Software, Inc

Thinfinity Virtual UI is a development platform that allows you to take any existing Desktop Application and publish it as a web solution. By adding a single line of code to any of your existing software, you will be enabling dual-platform functionality. Releasing a Windows application to the web has never been so easy. It really is that simple!!! Integrating with any language supporting Win32, GDI/GDI+ API, and ActiveX/COM, Thinfinity VirtualUI redirects Windows calls and drawing commands to the remote HTML5 canvas.

2 Ratings

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BBEdit

Bare Bones Software, Inc.

The leading professional HTML and text editor for the Mac, with high-performance features for editing, searching, and manipulation of text.

2 Ratings

Starting Price: $49.99

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AWS Cloud9

Amazon

AWS Cloud9 is a cloud-based integrated development environment (IDE) that lets you write, run, and debug your code with just a browser. It includes a code editor, debugger, and terminal. Cloud9 comes prepackaged with essential tools for popular programming languages, including JavaScript, Python, PHP, and more, so you don’t need to install files or configure your development machine to start new projects. Since your Cloud9 IDE is cloud-based, you can work on your projects from your office, home, or anywhere using an internet-connected machine. Cloud9 also provides a seamless experience for developing serverless applications enabling you to easily define resources, debug, and switch between local and remote execution of serverless applications. With Cloud9, you can quickly share your development environment with your team, enabling you to pair program and track each other's inputs in real time.

2 Ratings

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SonarQube Server

SonarSource

SonarQube Server is a self-managed solution for continuous code quality inspection that helps development teams identify and fix bugs, vulnerabilities, and code smells in real-time. It provides automated static code analysis for a variety of programming languages, ensuring the highest quality and security standards are maintained throughout the development lifecycle. SonarQube Server integrates seamlessly with existing CI/CD pipelines, offering flexibility for on-premise or cloud-based deployment. With advanced reporting features, it helps teams manage technical debt, track improvements, and enforce coding standards. SonarQube Server is ideal for organizations seeking full control over their code quality and security without compromising on performance.

2 Ratings

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BLACKBOX AI is an advanced AI-powered platform designed to accelerate coding, app development, and deep research tasks. It features an AI Coding Agent that supports real-time voice interaction, GPU acceleration, and remote parallel task execution. Users can convert Figma designs into functional code and transform images into web applications with minimal coding effort. The platform enables screen sharing within IDEs like VSCode and offers mobile access to coding agents. BLACKBOX AI also supports integration with GitHub repositories for streamlined remote workflows. Its capabilities extend to website design, app building with PDF context, and image generation and editing.

1 Rating

Starting Price: Free

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Visual Studio

Microsoft

Full-featured IDE to code, debug, test, and deploy to any platform. Code faster. Work smarter. Create the future with the best-in-class IDE. Develop with the entire toolset from initial design to final deployment. Improved IntelliSense performance for C++ files. Local development with many common emulators. Simplified test access in Solution Explorer. Git management and repo creation in the IDE. Kubernetes support now included in Microsoft Azure workload. It doesn’t matter what type of app you are building, what language you program in, or what OS you’re on; with Live Share you can instantly share your project with your peers from the comfort of your own tools. No need to clone a repo or set up the environment, to get sharing.

1 Rating

Starting Price: $45.00 per month

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Mend.io

Trusted by the world's leading companies, including IBM, Google, and Capital One, Mend.io's enterprise suite of application security tools is designed to help you build and manage a mature, proactive AppSec program. Mend.io understands the different AppSec requirements of developers and security teams. Unlike other AppSec solutions that force everyone to use a single tool, Mend.io helps them work in harmony by giving each team different, but complementary, tools - enabling them to stop chasing vulnerabilities and start proactively managing application risk.

1 Rating

Starting Price: $1,000 per developer, per year

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PlatformIO

Professional collaborative platform for embedded development. PlatformIO is a next-generation, collaborative platform for embedded development that enables customers to save resources and time by vastly reducing the expenses and labor associated with creating and maintaining product software. We believe the embedded systems industry desperately needs reinvention. Not only are the IDEs and tools built with technology from the 1990s, but they involve many complex requirements and platform-dependent configurations that turn away talented developers from becoming embedded engineers. The most loved IDE solution for Microsoft Visual Studio Code. A user-friendly and extensible integrated development environment with a set of professional development instruments, providing modern and powerful features to speed up yet simplify the creation and delivery of embedded products. PlatformIO is written in pure Python and doesn't depend on any additional libraries/tools from an operation system.

1 Rating

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Geany

Geany is a powerful, stable and lightweight programmer's text editor that provides tons of useful features without bogging down your workflow. It runs on Linux, Windows and MacOS is translated into over 40 languages, and has built-in support for more than 50 programming languages. One the primary reasons for Geany's existence is that there is a need for a decent, GUI, lightweight, cross-platform, flexible and powerful IDE/editor. Many editors meet one or more of these requirements but fall short on others. Using the GPL v2 license, Geany assures that not only can you customize and hack it, but that everyone benefits from changes the community makes. Many parts of Geany are heavily customizable like color themes (Geany Themes) or adding new filetypes. Furthermore, Geany provides many settings to let you adjust it to your needs and preferences. Many supported filetypes including popular programming languages like C, Java, PHP, HTML, JavaScript, etc.

1 Rating

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Kate

KDE

Kate is packed with features that will make it easier for you to view and edit all your text files. Kate lets you to edit and view many files at the same time, both in tabs and split views, and comes with a wide variety of plugins, including an embedded terminal that lets you launch console commands directly from Kate, powerful search and replace plugins, and a preview plugin that can show you what your MD, HTML and even SVG will look like. Kate supports highlighting for over 300 languages making it easier to read code in almost all programming languages. Kate also understands how brackets works and will help you navigate inside complex code blocks hierarchies. On-the-fly spellchecking is also included and will help you check your text before publishing. Work on multiple files at the same time with split views. Use the project sidebar to navigate your project directory structures and use Kate's smart tabs to quickly access your recently opened documents.

1 Rating

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Best Application Development Software for C#

Compare the Top Application Development Software that integrates with C# as of July 2025

What is Application Development Software for C#?