Page 5 | Best Application Development Software for JavaScript

ReSharper

JetBrains

The Visual Studio Extension for .NET Developers. On-the-fly code quality analysis is available in C#, VB.NET, XAML, ASP.NET, ASP.NET MVC, JavaScript, TypeScript, CSS, HTML, and XML. You'll know right away if your code needs to be improved. Not only does ReSharper warn you when there's a problem in your code but it provides hundreds of quick-fixes to solve problems automatically. In almost every case, you can select the best quick-fix from a variety of options. Automated solution-wide code refactorings help you safely change your code base. Whether you need to revitalize legacy code or put your project structure in order, you can rely on ReSharper. You can instantly navigate and search through the whole solution. Jump to any file, type, or type member, or navigate from a specific symbol to its usages, base and derived symbols, or implementations.

Starting Price: $12.90 per user per month

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DeepSource

DeepSource is an AI-powered code review platform designed to help development teams maintain high-quality, secure, and reliable code. The platform automates code reviews using a hybrid approach that combines static analysis with advanced AI agents. It integrates directly with development workflows through platforms like GitHub, GitLab, Bitbucket, and Azure DevOps. DeepSource analyzes pull requests in real time, identifying bugs, security vulnerabilities, code complexity issues, and maintainability risks before code reaches production. The system provides structured feedback and inline comments to help developers quickly understand and resolve issues. Additional features such as secrets detection, dependency vulnerability scanning, and infrastructure-as-code review strengthen application security. By automating repetitive review tasks and providing intelligent insights, DeepSource enables teams to ship software faster while maintaining strong code quality standards.

Starting Price: $24/user/month

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DB PowerStudio

IDERA, an Idera, Inc. company

Administer, manage changes, tune queries, and develop relational databases. Database professionals need to minimize the time and effort spent on the routine management and development of databases across the organization. To address this challenge, benefit from IDERA’s bundle of top tools for the management and development of multiple database platforms. Perform database administration. Automate and manage complex database schema changes. Automate SQL query tuning and profiling. Develop SQL code efficiently.

Starting Price: $1,699.20 per user

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PythonAnywhere

Get started for free. Our basic plan gives you access to machines with a full Python environment already installed. You can develop and host your website or any other code directly from your browser without having to install software or manage your own server. Just write your application. No need to configure or maintain a web server — everything is set up and ready to go. Take your development environment with you! If you have a browser and an Internet connection, you've got everything you need. PythonAnywhere is a fully-fledged Python environment, ready to go, for students and teachers — concentrate on teaching, not on installation hassles. Need help with PythonAnywhere? If you get in touch, you can talk directly with the development team. Help for developers, from developers. We make a normally complicated process very simple, letting you focus on creating exciting applications for your users.

Starting Price: $5 per month per app

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Codeanywhere

Our Cloud IDE saves you time by deploying a development environment in seconds, enabling you to code, learn, build, and collaborate on your projects. With our amazing web-based code editor in Codeanywhere, you will forget you ever used any other code editor. All major programming languages fully supported, including JavaScript/TypeScript, PHP, Python, Ruby, Go, Java, C/C++, C# any many other. Intelligent editing features such as auto-complete, code refactor, go to definition, rename symbol and many others. Debug code with break points, call stacks and interactive console. Fully featured Git client. Expandable with vast amount of existing extensions. You can also spin up powerful containers in seconds, that can be fully preconfigured for the programming environment of your choice. Develop and run your code on our infrastructure with full sudo access. Prebuilt development environments for all major programming languages, packed with tools and database preinstalled.

Starting Price: $2.50 per user per month

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Ona

Ona, formerly Gitpod, is a modern development platform that provides mission control for software projects and engineering agents. It allows developers to keep momentum on any device by offering sandboxed, API-first environments in the cloud or within a company’s VPC. These environments come pre-configured with tools, dependencies, and controls, ensuring a consistent and secure setup for professional software engineering. Ona Agents further enhance productivity by assisting with tasks like scoping, writing, reviewing, and documenting code across the entire development lifecycle. Enterprise-ready guardrails deliver fine-grained permissions, policies, and audit trails, giving organizations full control over compliance and security. Trusted by millions of developers and Fortune 500 companies, Ona integrates seamlessly with tools like GitHub, GitLab, AWS, Copilot, and Amazon Bedrock.

Starting Price: $20/month

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CodeSandbox

CodeSandbox is a cloud development platform that empowers development teams to code, collaborate, and ship projects of any size from any device in record time. Run your code in powerful microVMs and build anything without limits. We configure your environment for you and keep your code always ready, behind a URL. Boxy, the CodeSandbox AI coding assistant, is also now available to all Pro subscribers.

Starting Price: $12 per month

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JS Bin

JS Bin is a tool for experimenting with web languages. In particular HTML, CSS and JavaScript, but JS Bin also supports other languages too (like Markdown, Jade and Sass). JS Bin is ultimately a code sharing site. Along with the code, the complete output of the code is also shared with other developers, colleagues and/or students. As you type into one of the editor “panels”, you and anyone watching your bin will see the output being generated in real-time in the output panel. There’s many features tucked away inside JS Bin, but our design principle is that everyone gets a cursor. So when you arrive for the first time, you’ll be greeted with an initial start HTML page and very little else (though you can customise your default code). If you register (which is free and simple), your profile will remember which bins you created, but also give you a shortcut URL that always takes you to the last bin you worked on.

Starting Price: $17.82 per month

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MatDeck

LabDeck

MatDeck is a universal, technical software for Mathematics, Science, Engineering, Chemistry, Coding, Databases and many other uses. Our software offers a complete Python IDE; thousands of mathematical functions; a drag and drop GUI Designer and various visualization tools, all embedded within a cutting-edge, live document for an inexpensive and professional computing environment.

Starting Price: Free

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Boost Note

Boost Note is a powerful, lightspeed collaborative workspace for developer teams. Built to empower developers productivity with the most solid note taking experience for developers. Not just a GitHub flavored markdown. Put diagrams with Charts.js, Mermaid, and PlantUML in documents to maximize visibility. Choose from keymaps like Vim, over 150 themes, and more to create your own Markdown editor. Manage your documents programmatically. Grab an authentication token and access Boost Note's APIs via simple HTTP requests. Automate your documentation work with over 2,000 external tool integrations via Zapier. Collaborate with your colleagues and share information your way. Have all your teams in one shared workspace. Write documents as a team with Boost Note's realtime editing. Check revision history of a doc. You can easily roll back to one of the previous versions in one click. Keep your important data safe through granula access control based on workspace.

Starting Price: $3 per member per month

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Storyboard

Crank AMETEK

Storyboard is an embedded GUI development framework that accelerates the design and delivery of modern UX for tomorrow’s IoT and wearable devices. With its Rapid Design Import and Iteration Technology, embedded developers around the world are able to create products that offer unmatched GUI experiences (graphics, voice, and audio), uniquely optimized for all operating systems and platforms, including resource-constrained MCU and MPU platforms. Storyboard aligns embedded developers with the iterative change processes of designers — using popular tools like Sketch and Photoshop — helping manufacturers achieve high-quality UX without sacrificing performance or development time. With only a few mouse clicks, developers use Storyboard to visualize changed assets and rapidly assess, accept, or reject elements in a timesaving manner. This accelerated workflow allows teams to refine their products at any stage in their development cycle.

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Espresso

The web editor for Mac is back. For people who make delightful, innovative and fast websites — in an app to match. Espresso helps you write, code, design, build and publish with flair and efficiency. Sophisticated text features, amazing Live Preview with Browser Xray, CSSEdit tools, the Navigator, Dynamo auto-building, and Server Sync. Whether you're starting from scratch or tweaking a live site, Espresso has you covered. Change CSS for live sites and see your design update in real-time. No need to publish, reload or even save. Only Espresso makes playing with live projects this fun, easy and non-destructive. The new Espresso lets you build first-class standard CSS, but also modular SCSS and LESS. Styling is a joy with the beautiful navigator, auto-building by Dynamo and incredible integration with live preview and overrides.

Starting Price: $99

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Qt Creator

Qt Group

Qt Creator's advanced code editor lets you code in C++, QML, JavaScript, Python and other languages. It features code completion, syntax highlighting, refactoring and has built-in documentation at your fingertips. Qt Creator integrates with most popular version control systems, including Git, subversion, perforce, and mercurial. Integrated visual editors for building C++ widget-based applications or fluid Qt Quick-based animated UIs with ready-made controls. Import an existing project or create one from scratch – Qt Creator generates all the necessary files. Support for Cmake and cross-compiling with qmake is included. Build for and run your software on desktop, mobile and embedded operating systems. The build settings allow you to easily switch between targets. Test and debug applications in conditions practically identical to those on your target device.

Starting Price: $83 per month

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WebStorm

JetBrains

WebStorm is a powerful JavaScript and TypeScript integrated development environment (IDE) designed to boost developer productivity and enjoyment. It comes ready to use out of the box with essential tools for JavaScript, TypeScript, HTML, CSS, and popular frameworks like React, Angular, and Vue. WebStorm offers deep code understanding, fast navigation, safe refactoring, and built-in Git support. It automates complex tasks such as resolving merge conflicts and debugging tests, saving developers time. The IDE integrates advanced AI-powered coding assistance, including unlimited code completion and offline support. WebStorm’s customizable interface and plugin ecosystem make it adaptable to any developer’s workflow.

Starting Price: $129 per user per year

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Merico

Old analytics measure surface level signals. Merico directly analyzes the code, measuring what matters with deep program analysis. Engineering performance is challenging to measure. Few companies try, most that do use inaccurate and misleading signals, while missing hidden opportunities for recognition, improvement, and advancement. Until now, analytics and evaluation tools have focused on superficial metrics to assess quality and productivity. Developers know this isn't the right way. This is why we built Merico. With commit-level analysis, your team get the insights they need directly from the codebase. With Merico the information is immune to the inaccuracies that can be generated from measuring processes. With a direct relationship to the code, developers can improve, prioritize, and evolve with specifity. With Merico, teams can create clear shared goals, while tracking progress, productivity, and quality with practical benchmarks.

Starting Price: $2.50 per month

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LightPaper

Great features bundled in a simple app to help you take notes and write documents. LightPaper lets you write your documents/articles/blogs using powerful features such as markdown, folder navigator, real and live preview, shadow notes, multi-tabs, custom styles, distraction free mode, syntax highlighting, math rendering, full GFM support including GitHub tasks, Jekyll rendering, and more. Whether you are a professional writer, a blogger, a developer, a scholar, or a student, LightPaper has you covered for all your writing and note taking needs. Use LightPaper's powerful folder navigator to open multiple folders and browse through all your documents. You can not only open a document quickly by double clicking it but can also create a new document or a folder, delete files or folders or rename them. Quick Open feature allows you to quickly search through all your files. Favorite a file or folder to have it accessible any time you need it.

Starting Price: $14.99 one-time payment

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Textastic

Textastic for Mac is the perfect desktop companion to the popular iOS code editor. With support for more than 80 source code and markup languages, Textastic brings the powerful syntax coloring engine of the iOS source code editor to the Mac. You can use your own TextMate, and Sublime Text, compatible syntax definitions. Textastic for Mac is based on the code editor that powers the iOS app. It uses native macOS APIs like Core Text for maximum speed. Code completion, file navigation with the symbol list and support for modern Mac features like Auto Save and Versions make your life easier. With iCloud Drive, you can sync your files across your macOS and iOS devices with ease. The app packs in support for 80 source code and markup languages, iCloud auto-save and macOS Versions. Built with the ability to import syntax definitions, themes and templates from TextMate.

Starting Price: $7.99 one-time payment

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ActiveState

ActiveState provides software development teams with the world's most comprehensive library of secure and trusted open source, over 79 million vetted components across all major language ecosystems (e.g., Java, Javascript, Python, R, Go, etc.), including transitive dependencies and OS-level libraries. By building everything from source, we ensure that every component is what it says it is, contains the fewest amount of vulnerabilities, and is continuously remediated. Companies can consume this open source where and when they need it - through their existing artifact repositories, as container images or managed distributions, or via IDPs. When teams transfer their open source responsibility to ActiveState, developers and security teams break free from the endless cycle of vulnerability management. Developers gain confidence knowing their code will make it to production faster and with less friction. Security gains assurance that policy and compliance standards are met by default.

Starting Price: $25,000

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WildEdit

TextPad

If you ever need to make the same changes to many files at once, then WildEdit will save you a lot of time. It is an interactive tool for users to edit a set of plain text files in a folder hierarchy, filtered by wildcards. This makes it ideal for editing web pages and software source code or reformatting log files and newsletters. It is not suitable for editing files with proprietary binary formats, such as Microsoft Word documents. You simply need to specify the search text, optionally using a regular expression, the replacement text, and a wildcard filter, then let it run. This process can be repeated as often as is required, and up to the last 10 changes can be undone and redone. WildEdit is available as a trial version before you buy it, so please download your trial copy now, and find out just how productive you can be. You can edit any files containing plain text.

Starting Price: $8.50 one-time payment

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phase 5

A classic among German HTML editors! Some features of the HTML editor are project management, TAG completion for HTML commands, syntax coloring to improve readability, HTML forms, integrated image viewer, syntax debugger, umlaut conversion, indentation assistant, project-wide replacement of text, user-defined menus and templates, supports common formats such as PHP, Javascript, HTML, VBScript, JAVA, Pearl, file manager to quickly switch between your documents, edit several documents at the same time, table assistant and much more. Free use only for home users and schools. Schools, in the sense of the licensing regulation, are institutions that prepare for vocational training. Companies, registered associations, and authorities must acquire a license in order to be able to work legally with the program. phase 5 runs without problems under both the 32-bit and the 64-bit version of Windows 10.

Starting Price: €47.60 one-time payment

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Komodo Edit

ActiveState

Komodo Edit is a great editor if you’re looking for something powerful, yet simple. Komodo IDE provides more robust functionality such as debugging, unit testing, code refactoring and code profiling. Software vendors are increasingly the front line of security for their customers since one compromised patch or upgrade can make hundreds or even thousands of your customers susceptible to cyberattacks. Don’t be the next SolarWinds. Rather than implementing multiple point solutions and custom code, the ActiveState Platform can provide you with an out-of-the-box solution that helps ensure the security and integrity of the open source components you import, work with and run.

Starting Price: $84 per month

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Sumocode

Sumo Apps

Create apps and games with just a few lines of code. Learn how to code with gamified examples. Remix example of sample code or write something new from scratch. Inspired by examples, using JavaScript as a language you'll discover how easy it is to program and create games with few lines of code. Boost your creativity with Sumocode, and let your mind build new things! Update your skills and learn how to code like a pro! There's no holding back your imagination! Learn to apply engineering concepts to create digital solutions to problems at hand! It doesn't matter if you're 5, 55, or 105, you can learn to code! Sumocode is here to help you navigate the first steps on your journey to becoming a programmer. It is easier than you think. Learn to build apps and code snippets. It is surprisingly easy with our Sumo3D code library. You can use our examples as the base or create your own apps from scratch.

Starting Price: $9 per month

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UEStudio

UltraEdit

UEStudio is built upon the world's best text editor, UltraEdit, and delivers additional features for teams and developers – like deep Git integration. You can clone, checkout, update, commit, push/pull, and more directly from within UEStudio to manage your Git repositories. As a Git editor, UEStudio combines the world's best text editor and the power of Git all within a single application. Edit and update your source files, then commit them with the stroke of a hotkey or the click of a mouse. You can easily merge branches in UEStudio's Git branch manager (or in the Git shell if that's your style). Quickly review and resolve them with UltraCompare's merge tool support so you can be on your way. UEStudio parses your project and source files to provide you with intelligent, automatic source code completion.

Starting Price: $89.95 per year

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SmartBear AQTime Pro

SmartBear

Debugging should be simple. AQTime Pro synthesizes complex memory and performance information into digestible, actionable insights so you can quickly find bugs and their root cause. Finding and squashing highly differentiated bugs is tedious and complicated, but AQTime Pro makes it easy. With over a dozen profilers, you can find memory leaks, performance bottlenecks, code coverage gaps and more in just a few clicks. AQTime Pro enables you to squash all bugs with one tool and get back to making high quality code. Don’t let code profilers box you in with a single codebase or framework and prevent you from finding performance bottlenecks, memory leaks, code coverage gaps unique to your project. AQTime Pro is the one tool to use across multiple codebases and frameworks in a project. It has broad language support for C/C++, Delphi, .NET, Java and more.

Starting Price: $719 one-time payment

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ZEGOCLOUD

Embed engaging real-time voice, video, and in-app chat experiences into your apps with ZEGOCLOUD's communications APIs. Get started with 4 lines of code and enable enriched interactions with more features. Use our voice, video, and in-app chat SDKs to develop the exact communication features your users need to connect, share, and interact with each other anytime, anywhere. Liven up the interactions and elevate the vibes for your users with a rich set of add-ons, including emotionally responsive avatars, AI-powered video effects, whiteboards, and more. Monitor the quality of communications in real-time and gain insights into your user experience with our powerful monitoring and analytics tools, so you can respond to any issues swiftly and improve your services continuously. ZEGOCLOUD's social solutions help you build 1-on-1 and group video calls, live audio rooms, and social live streaming into your apps to help your users connect and have fun together.

Starting Price: $0.59 per 1000 minutes

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Stickler CI

Stickler

Align your team's code reviews with automatic style feedback, for all the languages you use, all in one place. Connecting your repository is a couple of clicks away and our reviews finish in record time. Use the default style guides or customize each tool to fit your team's tastes. Use auto fixing to correct your team's style errors so you can focus on feedback. Stickler CI only keeps your code on our servers for the duration of a review. After the comments for a review are posted your code is removed from our servers. Incrementally improve and standardize the quality of your code in each pull request. Ensure your coding standards are applied consistently as code changes without having to disrupt your team. Make sure your code quality and style are standardized by automatically applying style and quality checking tools. Either use the defaults or customize linters to fit your existing coding standards.

Starting Price: $15 per month

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Electron

Thousands of organizations spanning all industries use Electron to build cross-platform software. Build cross-platform desktop apps with JavaScript, HTML, and CSS. If you can build a website, you can build a desktop app. Electron is a framework for creating native applications with web technologies like JavaScript, HTML, and CSS. It takes care of the hard parts so you can focus on the core of your application. Electron uses Chromium and Node.js so you can build your app with HTML, CSS, and JavaScript. Electron is an open-source project maintained by the OpenJS Foundation and an active community of contributors. Compatible with Mac, Windows, and Linux, Electron apps build and run on three platforms. To get started with Electron, check out the resources available. Learn how to wrap your web app with Electron, access all the APIs, and generate installers. Also, Electron Fiddle lets you create and play with small Electron experiments.

Starting Price: Free

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Express

OpenJS Foundation

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. With a myriad of HTTP utility methods and middleware at your disposal, creating a robust API is quick and easy. Express provides a thin layer of fundamental web application features, without obscuring Node.js features that you know and love. Express has no notion of a database. This concept is left up to third-party Node modules, allowing you to interface with nearly any database. In Express, 404 responses are not the result of an error, so the error-handler middleware will not capture them. This behavior is because a 404 response simply indicates the absence of additional work to do; in other words, Express has executed all middleware functions and routes, and found that none of them responded.

Starting Price: Free

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QUnit

The powerful, easy-to-use JavaScript testing framework. Easy, zero-configuration setup for any Node.js project and minimal configuration for browser-based projects. Tests can be run anywhere; Node, your browser, even inside a web worker. Test your code where it runs. Flexible APIs for custom assertions, runners, and reporters mean you can extend QUnit to fit your needs. Getting started with QUnit for Node.js projects is quick and easy. First, install the QUnit package using npm. You can now run the test suite through the QUnit CLI. It is recommended that you run the QUnit command via an npm script, which will find the QUnit command automatically from your local dependencies. Check out the API documentation to learn more about the QUnit APIs for organizing tests and making assertions.QUnit follows the Node.js Long-term Support (LTS) schedule and provides support for current, active LTS, and maintenance LTS releases.

Starting Price: Free

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Mocha

Mocha runs in the browser. Every release of Mocha will have new builds of ./mocha.js and ./mocha.css for use in the browser. By adding an argument (usually named done) to it() to a test callback, Mocha will know that it should wait for this function to be called to complete the test. This callback accepts both an Error instance (or subclass thereof) or a falsy value; anything else is invalid usage and throws an error (usually causing a failed test). These reporters expect Mocha to know how many tests it plans to run before execution. This information is unavailable in parallel mode, as test files are loaded only when they are about to be run. In serial mode, tests results will “stream” as they occur. In parallel mode, reporter output is buffered; reporting will occur after each file is completed. In practice, the reporter output will appear in “chunks” (but will otherwise be identical). If a test file is particularly slow, there may be a significant pause while it’s running.

Starting Price: Free

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Best Application Development Software for JavaScript - Page 5

Compare the Top Application Development Software that integrates with JavaScript as of October 2026 - Page 5

ReSharper

DeepSource

DB PowerStudio

PythonAnywhere

Codeanywhere

Ona

CodeSandbox

JS Bin

MatDeck

Boost Note

Storyboard

Espresso

Qt Creator

WebStorm

Merico

LightPaper

Textastic

ActiveState

WildEdit

phase 5

Komodo Edit

Sumocode

UEStudio

SmartBear AQTime Pro

ZEGOCLOUD

Stickler CI

Electron

Express

QUnit

Mocha

Best Application Development Software for JavaScript - Page 5

Compare the Top Application Development Software that integrates with JavaScript as of October 2026 - Page 5

ReSharper

DeepSource

DB PowerStudio

PythonAnywhere

Codeanywhere

Ona

CodeSandbox

JS Bin

MatDeck

Boost Note

Storyboard

Espresso

Qt Creator

WebStorm

Merico

LightPaper

Textastic

ActiveState

WildEdit

phase 5

Komodo Edit

Sumocode

UEStudio

SmartBear AQTime Pro

ZEGOCLOUD

Stickler CI

Electron

Express

QUnit

Mocha

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