Best Application Development Software for Haskell

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: $0

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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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Notepad++

Notepad++ is a free source code editor and Notepad replacement that supports several languages. Running in the MS Windows environment, its use is governed by GNU General Public License. Based on the powerful editing component Scintilla, Notepad++ is written in C++ and uses pure Win32 API and STL which ensures a higher execution speed and smaller program size. By optimizing as many routines as possible without losing user friendliness, Notepad++ is trying to reduce the world carbon dioxide emissions. When using less CPU power, the PC can throttle down and reduce power consumption, resulting in a greener environment.

12 Ratings

Starting Price: Free

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Apache NetBeans

Apache Software Foundation

Apache NetBeans is a versatile, open-source Integrated Development Environment (IDE) used for developing applications across a wide range of programming languages, including Java, JavaScript, PHP, HTML5, and C/C++. Known for its modular architecture, NetBeans provides robust tools and features that cater to the needs of developers working on desktop, mobile, and web applications. It includes intelligent code editing, debugging, and profiling capabilities, along with a built-in visual GUI builder for designing Java-based user interfaces. NetBeans also offers support for version control systems like Git, SVN, and Mercurial, facilitating seamless team collaboration. As an Apache Software Foundation project, NetBeans benefits from an active community that continuously improves and expands its functionality, making it a reliable and flexible choice for developers across various domains.

4 Ratings

Starting Price: Free

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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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Overleaf

Overleaf (Writelatex Limited)

There's nothing complicated or difficult for you to install, and you can start using LaTeX right now, even if you've never seen it before. Overleaf comes with a complete, ready to go LaTeX environment which runs on our servers. With Overleaf you get the same LaTeX set-up wherever you go. By working with your colleagues and students on Overleaf, you know that you're not going to hit any version inconsistencies or package conflicts.

1 Rating

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TextMate

MacroMates

Powerful and customizable text editor with support for a huge list of programming languages and developed as open source. Making multiple changes at once, swapping pieces of code, and a lot more is made trivial with TextMate’s easy way to add multiple insertion points. Select what you want to search, what you want to search for, and TextMate will present the results in a way that makes it easy to jump between matches, extract matched text, or preview desired replacements. See what files have changes in the file browser view, what lines have changes in the editor view, bring up a diff of the current file’s changes, commit a subset, TextMate supports it all for all the major version control systems. One file mixing languages? Projects using different build systems? Third party code with different formatting preferences? TextMate can handle it all by associating detailed scope selectors with key shortcuts, settings, etc.

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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Replit

Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup. Start coding with your favorite language on any platform, OS, and device. Invite your friends, teammates, and colleagues right into your code with Google-docs like editing. Import, run, and collaborate on millions of GitHub repos with 0 manual setup. From Python, to C++, to HTML and CSS, stay in one platform to learn and code in any language you want. The second you create a new repl, it's instantly live and sharable with the world. Learn how to code from 3 million+ passionate programmers, technologists, creatives, and learners of all kinds. Make your team more productive with interactive docs, real-time collaboration, and 0-hassle remote interviewing. Create apps programatically, spin up bots and customize the IDE with plugins to fit your needs.

2 Ratings

Starting Price: $7 per month

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Zed

Zed Industries

Zed is a next-generation code editor designed for high-performance collaboration with humans and AI. Written from scratch in Rust to efficiently leverage multiple CPU cores and your GPU. Integrate upcoming LLMs into your workflow to generate, transform, and analyze code. Chat with teammates, write notes together, and share your screen and project. Multibuffers compose excerpts from across the codebase in one editable surface. Evaluate code inline via Jupyter runtimes and collaboratively edit notebooks. Support for many languages via Tree-sitter, WebAssembly, and the Language Server Protocol. Fast native terminal tightly integrates with Zed's language-aware task runner and AI capabilities. First-class modal editing via Vim bindings, including features like text objects and marks. Zed is built by a global community of thousands of developers. Boost your Zed experience by choosing from hundreds of extensions that broaden language support, offer different themes, and more.

Starting Price: Free

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Lapce

Lapdev

Lapce is a cutting-edge, open-source code editor focused on delivering a fast and responsive experience, particularly for developers working with large projects or complex codebases. Written in Rust, Lapce leverages the performance advantages of native development to provide a smooth editing experience with minimal lag. It features a clean, modern interface and advanced functionality such as multi-caret editing, split views, and integrated terminal support. With built-in support for the Language Server Protocol (LSP), Lapce offers precise autocompletion, syntax highlighting, and code navigation across various programming languages, enhancing productivity. Its extensibility, support for plugins, and focus on performance make Lapce ideal for developers looking for a lightweight yet powerful editor that balances simplicity with capability, appealing to both beginners and seasoned professionals.

Starting Price: Free

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FOSSA

Scalable, end-to-end management for third-party code, license compliance, and Open Source has become the critical supplier for modern software companies, changing everything about how people think about their code. FOSSA builds the infrastructure for modern teams to be successful with open source. FOSSA's flagship product helps teams track the open source used in their code and automate license scanning and compliance. Since then, over 7,000 open source projects (Kubernetes, Webpack, Terraform, ESLint) and companies ( Uber, Ford, Zendesk, Motorola) rely on FOSSA's tools to ship software. If you are in the software industry today, you're now using code that runs FOSSA. FOSSA is a venture-funded company backed by Cosanoa Ventures, Bain Capital Ventures, etc. with affiliate angels including Marc Benioff (Salesforce), Steve Chen (YouTube), Amr Awadallah (Cloudera), Jaan Tallin (Skype), and Justin Mateen (Tinder).

Starting Price: $230 per month

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Codecov

Develop healthier code. Improve your code review workflow and quality. Codecov provides highly integrated tools to group, merge, archive, and compare coverage reports. Free for open source. Plans starting at $10/user per month. Ruby, Python, C++, Javascript, and more. Plug and play into any CI product and workflow. No setup required. Automatic report merging for all CI and languages into a single report. Get custom statuses on any group of coverage metrics. Review coverage reports by project, folder and type test (unit tests vs integration tests). Detailed report commented directly into your pull request. Codecov is SOC 2 Type II certified, which means a third-party audits and attests to our practices to secure our systems and your data.

Starting Price: $10 per user per month

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Glitch

Glitch is a collaborative programming environment that lives in your browser and deploys code as you type. Use Glitch to build anything from a good ol’ static webpage to full-stack Node apps. You never have to start from scratch: Just start remixing an existing starter app, or clone a project from services like GitHub and GitLab to experiment and deploy on Glitch. Build off the most popular JavaScript frameworks. Your favorite companies use Glitch to share apps that get you up and running with their APIs. Invite friends to work with you on public or private projects. Anyone with a browser can jump in and pick up where you left off, and private .env files keep secrets like API keys, well, secret. There's no deployment setup—as soon as you create a new project, your Glitch app is live with its own URL (or your custom domain!). Share or embed anywhere, and invite anyone to check out your code or remix it.

Starting Price: $8 per month

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HUnit

Hackage

HUnit is a unit testing framework for Haskell, inspired by the JUnit tool for Java. It's easy to use HUnit, assuming you are familiar with Haskell, though not necessarily with JUnit. A test-centered methodology for software development is most effective when tests are easy to create, change, and execute. The JUnit tool pioneered support for test-first development in Java. HUnit is an adaptation of JUnit to Haskell, a general-purpose, purely functional programming language. With HUnit, as with JUnit, you can easily create tests, name them, group them into suites, and execute them, with the framework checking the results automatically. Test specification in HUnit is even more concise and flexible than in JUnit, thanks to the nature of the Haskell language. HUnit currently includes only a text-based test controller, but the framework is designed for easy extension. Run the tests as a group.

Starting Price: Free

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$Refraction$

Refraction

Refraction is a code-generation tool for developers. It uses AI to generate code for you. You can use it to generate unit tests, documentation, refactor code, and more. Generate code using AI in 34 languages — Assembly, C#, C++, CoffeeScript, CSS, Dart, Elixir, Erlang, Go, GraphQL, Groovy, Haskell, HTML, Java, JavaScript, Kotlin, LaTeX, Less, Lua, MatLab, Objective-C, OCaml, Perl, PHP, Python, R Lang, Ruby, Rust, Sass / SCSS, Scala, Shell, SQL, Swift, and TypeScript. Join thousands of developers around the world using Refraction to generate documentation, create unit tests, refactor code, and more using AI. Use the power of AI to automate the tedious parts of software development like testing, documentation, and refactoring, so you can focus on what matters. Refactor, optimize, fix and style-check your code. Generate unit tests for your code with various test frameworks. Explain the purpose of your code to make it easier to understand.

Starting Price: $8 per month

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Extism

Dylibso

Extism is an open-source, universal plug-in system to make all software programmable, and it's powered by WebAssembly. In-depth documentation, constantly updated as the project grows. 15+ officially supported Host SDKs, making Extism embeddable in the most popular languages. 7+ officially supported PDKs, to write plug-ins in whichever language a developer would like. A growing set of runtime features makes Extism an excellent plug-in system for apps of all types & sizes. Fully-featured canonical reference demo with Elixir host SDK, and plugins in Rust, TypeScript, & Javascript. Implementation of a turn-based multiplayer game platform and games included to play and review. Games are implemented as WebAssembly modules containing a specific set of exports. Check out the source code on GitHub, download the installer, and get started. 100% open-source code. Fork it, experiment, & run your own game server.

Starting Price: Free

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ImmuneBytes

Fortify your blockchains with our impeccable audit services for unparalleled security in the decentralized realm. If you're spending sleepless nights worrying about losing funds to hackers, choose from our stack of services, and bid farewell to all your fears. In-depth analysis of the code by industry veterans to detect the vulnerabilities in your smart contract. Our experts secure your blockchain applications by mitigating risks through security design, assessment, audit, and compliance services. Our independent team of prolific penetration testers performs an extensive exercise to detect vulnerabilities and system exploits. We are the torch-bearers of making the space safer for everyone and do it by helping with a complete, systematic analysis to enhance the product's overall security. Recovery of funds is as equally important as a security audit. Have the facility to track user funds with our transaction risk monitoring system and boost users' confidence.

Starting Price: Free

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Echidna

Crytic

Echidna is a Haskell program designed for fuzzing/property-based testing of Ethereum smart contracts. It uses sophisticated grammar-based fuzzing campaigns based on a contract ABI to falsify user-defined predicates or Solidity assertions. We designed Echidna with modularity in mind, so it can be easily extended to include new mutations or test specific contracts in specific cases. Generates inputs tailored to your actual code. Optional corpus collection, mutation and coverage guidance to find deeper bugs. Powered by Slither to extract useful information before the fuzzing campaign. Source code integration to identify which lines are covered after the fuzzing campaign. Interactive terminal UI, text-only or JSON output. Automatic test case minimization for quick triage. Seamless integration into the development workflow. Maximum gas usage reporting of the fuzzing campaign. Support for a complex contract initialization with Etheno and Truffle.

Starting Price: Free

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Kakoune

Kakoune is a highly efficient, modal text editor that focuses on real-time feedback and powerful, intuitive multi-selection capabilities. Inspired by Vim but offering its own distinct approach to modal editing, Kakoune prioritizes a selection-based workflow that makes text manipulation feel natural and fluid. Instead of commands operating on cursors, commands operate on selections, allowing users to edit and navigate with precision and speed. Kakoune features robust multi-caret editing, context-aware autocompletion, and extensive language support, with performance optimized for working with large files and complex codebases. Designed to be scriptable and extendable with shell commands, Kakoune integrates smoothly with UNIX tools, giving users flexibility in customization. Known for its responsiveness and adaptability, Kakoune is ideal for developers who prefer a keyboard-driven interface and appreciate real-time, immediate feedback in their editing workflow.

Starting Price: Free

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PaizaCloud

On PaizaCloud Cloud IDE, you can operate Linux servers in your browser. You can manage and edit files, run commands, or start a web server/database server, all in a browser alone. You don't need to use troublesome commands to log in, edit files, or upload files anymore. You can operate Linux servers on the cloud just like a computer in front of you. Your new Linux server environment will be set up in just 3 seconds. You can copy an existing server environment, and you can also freely operate multiple Linux servers. Because the new server is set up instantly, you can challenge installing or developing software without worrying about breaking down. All you need is a browser to use your workspace environment from any PC or Mac. You can use the same workspace environment from anywhere without always having to carry the same computer around. For programming schools, coding boot camps, universities, and colleges, students can use the same development environment at school and at home.

Starting Price: $9.80 per month

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Typora

Typora gives you a seamless experience as both a reader and a writer. It removes the preview window, mode switcher, syntax symbols of markdown source code, and all other unnecessary distractions. Instead, it provides a real live preview feature to help you concentrate on the content itself. Typora allows you to manage your files easily, providing both file tree panel and articles (file list) side panel, allows you to manage your files easily. Organize your files your way, including putting in sync services, like Dropbox or iCloud. Automatically see the Outline structure of your documents in outline panel, which allows you to quickly go through the document and jump to any section with one click. Export to PDF with bookmarks. Go further and export or import. More formats, including docx, OpenOffice, LaTeX, MediaWiki, Epub, etc, can be exported or imported. See how large your document is in words, characters, lines, or reading minutes.

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Coveralls

We help you deliver code confidently by showing which parts of your code aren’t covered by your test suite. Free for open-source repositories. Pro accounts for private repositories. Instant sign-up through GitHub, Bitbucket, and Gitlab. Maintaining a well-tested codebase is mission-critical. Figuring out where your tests are lacking can be painful. You're already running your tests on a continuous integration server, so shouldn't it be doing the heavy lifting? Coveralls works with your CI server and sifts through your coverage data to find issues you didn't even know you had before they become a problem. If you're just running your code coverage locally, you won't be able to see changes and trends that occur during your entire development cycle. Coveralls lets you inspect every detail of your coverage with unlimited history. Coveralls takes the pain out of tracking your code coverage. Know where you stand with your untested code. Develop with confidence that your code is covered.

Starting Price: $10 per month

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Dash

Kapeli

Dash gives your Mac instant offline access to 200+ API documentation sets. Dash is an API documentation browser and code snippet manager. Dash instantly searches offline documentation sets for 200+ APIs, 100+ cheat sheets, and more. You can even generate your own docsets or request docsets to be included. Dash comes with 200+ offline documentation sets. You can choose which documentation sets to download and Dash will take care of the rest, making sure they are kept up to date. You can also generate your own docsets, request docsets or download docsets from third-party sources. All documentation sets have been generated and are maintained with the utmost care. Dash integrates with package managers to generate documentation sets for anything you might need, as well as provide custom documentation sources of their own. Store snippets of code. Easily reuse snippets. Expand snippets in any app. Organize snippets with tags, syntax highlighting, and variable placeholders.

Starting Price: Free

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Helix Editor

Helix Editor is a powerful, modern text editor designed for developers seeking a fast, customizable, and efficient editing experience. Built with a focus on productivity, Helix uses a modal editing style inspired by Vim, which allows users to navigate, select, and manipulate text seamlessly through intuitive keyboard shortcuts. It offers a robust set of features including syntax highlighting, multi-caret editing, and support for languages like Rust, Python, and JavaScript. Helix also integrates with the Tree-sitter parsing library for precise syntax-aware editing, making it easier to work with complex code structures. With a minimal interface and a strong focus on performance, Helix Editor provides an ideal environment for programmers who prioritize speed and flexibility in their development workflow.

Starting Price: Free

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SwapCode AI

SwapCode AI is a special helper that makes it easy to change one kind of code into another. Imagine if you were playing with blocks, and you wanted to turn a square block into a round one—it does that for code! It helps developers and teams make their code work in new ways without breaking anything. It works with lots of different types of code, like the ones used to make websites, games, and apps. For example, if you have a puzzle piece that fits in a Java puzzle but needs to fit in a Python puzzle, SwapCode AI knows how to reshape it perfectly! It even makes sure the new piece is easy to read and use. SwapCode AI is super smart and fits right into your tools, so you can use it while you’re working without any extra steps. It helps teams work together, even if they’re using different tools or languages.

Starting Price: $20/month

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Sonatype Nexus Repository

Sonatype

Sonatype Nexus Repository is a robust binary repository manager designed to store, manage, and distribute open-source components, dependencies, and artifacts across the software development lifecycle (SDLC). It supports over 20 formats, including Maven, npm, PyPI, and Docker, allowing for seamless integration with build tools and CI/CD pipelines. With advanced features like high availability, disaster recovery, and scalability across cloud platforms, Nexus Repository ensures secure and efficient management of your software artifacts. The platform enhances collaboration, automates workflows, and improves visibility into your software supply chain, helping teams manage dependencies and improve software quality.

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Snipplr

Snipplr was designed to solve a simple problem. We had too many random bits of code and HTML scattered all over our computers. We'd hunt and dig around for five minutes looking for the couple lines of code we wrote four projects ago just so we wouldn't have to retype them. We're lazy. We needed a way to keep all of our stuff organized. Snipplr is our solution. Now, all of our code snippets are stored in one place. Best of all, the other guys at work have access to each others' code library. With Snipplr you can keep all of your frequently used code snippets in one place that's accessible from any computer. You can share your code with other visitors and use what they post, too.

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CodeRunner

A lightweight, multi-language programming text editor and IDE for macOS. CodeRunner was designed to support all of the most widely used programming languages and run them instantly. The app is configured to run code in 25 languages out-of-the-box, and additional languages can be configured to run by simply entering their terminal command. With over 200 syntax modes, lots of advanced editing features and thoughtful details, CodeRunner will quickly become your go-to editor for any and all kinds of text files. CodeRunner's code completion is the best you'll find in any IDE. Intelligent matching of typed text enables completions beyond single words. Quickly find the right completion among thousands with the extra-fuzzy search algorithm, helpful documentation snippets, and smart ranking of results. Don't clutter your code with print-statements for debugging. Instead, use CodeRunner's built-in debugging features to set breakpoints and step through your code.

Starting Price: $19.99 one-time payment

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Spacemacs

A community-driven Emacs distribution. The best editor is neither Emacs nor Vim, it's Emacs and Vim! Spacemacs is a new way to experience Emacs, a sophisticated and polished set-up focused on ergonomics, mnemonics and consistency. Key bindings are organized using mnemonic prefixes like b for buffer, p for project, s for search, h for help etc. Innovative real-time display of available key bindings. Simple query system to quickly find available layers, packages and more. Similar functionalities have the same key binding everywhere thanks to a clearly defined set of conventions. Community-driven configuration provides curated packages tuned by power users and bugs are fixed quickly.

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Best Application Development Software for Haskell

Compare the Top Application Development Software that integrates with Haskell as of June 2025

What is Application Development Software for Haskell?