Best Code Editors in Japan

Compare the Top Code Editors in Japan as of April 2025

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What are Code Editors in Japan?

Code editors are software tools that allow developers to write, edit, and debug source code for programming and web development. These editors provide essential features like syntax highlighting, code completion, auto-indentation, and error detection to enhance productivity and reduce coding errors. Many code editors also offer integrations with version control systems (like Git), debuggers, and build tools, allowing developers to manage their code and workflows efficiently. While some code editors are lightweight and focused solely on text editing, others offer extensive features and customization options through plugins and extensions. By providing a streamlined environment for coding, code editors are essential for software development, web development, and scripting tasks. Compare and read user reviews of the best Code Editors in Japan currently available using the table below. This list is updated regularly.

1

IntelliJ IDEA

JetBrains

IntelliJ IDEA is a JetBrains IDE for professional development in Java and Kotlin. It unlocks productive development and helps you write high-quality code with ease. Built to get the job done, it provides all of the essential tools and cutting-edge technology support you need. With a smooth, comfortable workflow and a strong focus on privacy and security, it lets you code with confidence and pleasure.

22 Ratings

Starting Price: $16.90 per user per month

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2

Eclipse IDE

Eclipse Foundation

Eclipse IDE The Leading Open Platform for Professional Developers used in computer programming. Better Than Ever. The Eclipse IDE delivers what you need to rapidly innovate. Easier IDE configuration The Eclipse IDE Installer 2020-09 and several packages now include a Java Runtime Environment (JRE). Improved theming and styling. Improved Windows dark theme and GTK light theme. Moving to bleeding edge. Eclipse IDE now needs Java 11 as a minimum version to run on, but you can compile any version as usual. New experimental features. Support for aarch64. Linux support landed this version. Node.js is now embedded For all our LSP-based toolings, Node.js is now embedded to make things work out of the box Free and open source Free and open source; released under the terms of the Eclipse Public License 2.0. Powered by Participation. A vast ecosystem of plugins from an active community

10 Ratings

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3

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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4

Cursor

Anysphere

The AI-first Code Editor. Cursor is a next-generation AI-powered code editor designed to accelerate software development with powerful, real-time code assistance. The platform integrates seamlessly with your development workflow, offering advanced features such as natural language code editing, auto-completion, and context-aware suggestions. Cursor predicts your next move and adapts to your coding style, making it an indispensable tool for developers. It also supports a wide range of extensions and themes, ensuring familiarity while introducing cutting-edge AI capabilities. Designed to boost productivity, Cursor simplifies debugging and enhances coding efficiency, empowering developers to work smarter, not harder.

1 Rating

Starting Price: $20 per month

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5

Dev-C++

Embarcadero

Embarcadero Dev-C++ is a new and improved fork (sponsored by Embarcadero) of Bloodshed Dev-C++ and Orwell Dev-C++. It is a full-featured Integrated Development Environment (IDE) and code editor for the C/C++ programming language. It uses Mingw port of GCC (GNU Compiler Collection) as its compiler. Embarcadero Dev-C++ can also be used in combination with Cygwin or any other GCC based compiler. Embarcadero Dev-C++ is built using the latest version of Embarcadero Delphi. Embarcadero Dev-C++ has a low memory footprint because it is a native Windows application and does not use Electron. Optimized for parallel compilation on modern multi-core machines.

1 Rating

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6

Geany

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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7

CodeSandbox

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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8

StackBlitz

StackBlitz

Create, edit & deploy fullstack apps — in just one click. Create user interfaces that are out of this world thanks to our partnership with Progress KendoReact. Go to Definitions, and other Visual Studio Code features just work. Tweak your app in real time without page reloads while preserving your app state. Import any NPM package into your project quicker than on local. Thanks to our revolutionary in-browser dev server. Drag & Drop files and folders into the editor. No more copy + pasting, uploading, or git commands. Your app is being hosted for easy live sharing. Create new projects by simply POSTing the desired project data from a form— useful when you don't/can't use our Javascript SDK. With your desired StackBlitz project open, simply drag and drop any files and folder you want to import.

Starting Price: $9 per month

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9

WebStorm

JetBrains

WebStorm is an integrated development environment for JavaScript and related technologies. Like other JetBrains IDEs, it makes your development experience more enjoyable, automating routine work and helping you handle complex tasks with ease. Write more reliable and maintainable code, with the IDE running dozens of code inspections as you type and detecting potential problems. Refactor your entire codebase in a few clicks and don’t miss anything when implementing large structural changes. Get straight to coding with everything you need for JavaScript development available out of the box. Be more productive and focus on more creative tasks while WebStorm takes care of all the routine work for you. Afraid of messing something up with Git and losing important changes? Or breaking something when renaming a component across your entire project? WebStorm will simplify these and other challenging tasks so you can focus on the big picture.

Starting Price: $129 per user per year

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10

WebForge IDE

Parallax Dynamics

A complete, powerful web development environment for iOS. WebForge includes everything you need to develop, run, and debug your web projects on your iPad or iPhone. No cloud needed. Includes: - Powerful code editor with syntax highlighting. - Inspect Browser built-in, providing extensive desktop-class browser dev tools. - Complete Git support - clone, branch, commit, pull, and push. - Run entire PHP projects on-device. Support for includes and a wide variety of extensions. Run on your device in the built-in browser. - Clone projects locally to your device or open code stored on iCloud. - Includes customizable and extensive code checking with in-editor notices to keep your code bug-free. - No cloud needed, everything runs on your device. Easily build fantastic web projects on your iPad and iPhone!

Starting Price: Free

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11

Toddle

Toddle

You don’t have to reinvent the wheel. Install native packages with rich functionality and zero need to manage dependencies, no more broken plugins. Install pre-built packages built by a world-class developer community and accelerate your time to market, with no coding required. Design cool components, actions, or formulas, package them, and use them everywhere, no need to mess around with complicated formulas. Toddle is a visual web app builder that rivals custom code but is accessible to your entire team. Professional no-code web app editor, built-in live collaboration, version control, and hosting. Toddle is a visual programming platform for building modern web applications without writing code. You may want to host your Toddle creations yourself instead of relying on Toddle's infrastructure. We offer code export via web components. Live updates when you edit your component in the editor.

Starting Price: $29 per month

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12

Code::Blocks

Code::Blocks

Code::Blocks is a free, open-source, cross-platform Integrated Development Environment (IDE) primarily designed for C, C++, and Fortran development. Known for its lightweight design and modular structure, Code::Blocks offers a highly customizable interface with support for multiple compilers, including GCC, Clang, and Microsoft Visual C++. It features an intuitive, user-friendly interface with essential tools like syntax highlighting, code folding, auto-completion, and a robust debugging environment with breakpoints, variable inspection, and call stack tracing. Code::Blocks is highly extensible through plugins, enabling developers to add features like version control, scripting support, and custom build tools. Its lightweight nature, flexibility, and cross-platform compatibility make it a popular choice for students, educators, and developers working on small to medium-sized C/C++ projects.

Starting Price: Free

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13

Aptana

Axway

Aptana Studio 3: The world’s most powerful open-source web development IDE just got better. Rebuilt from the ground-up. It's now much faster, customizable and includes new features to help you be more productive. Build web applications quickly and easily using the industry’s leading web application IDE. Aptana Studio harnesses the flexibility of Eclipse and focuses it into a powerful web development engine. Aids in authoring of HTML, CSS, JavaScript, PHP, and Ruby. Supports the latest HTML5 specifications. Includes information about the level of support for each element in the major web browsers. Support for one-shot as well as keep-synchronized setups. Multiple protocols including FTP, SFTP, FTPS and Capistrano. Ability to automatically publish your Ruby & Rails applications to hosting services such as Heroku and Engine Yard. Set breakpoints, inspect variables, control execution. The integrated Ruby & Rails and JavaScript debuggers help you squash those bugs.

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14

Theia

Theia

Eclipse Theia is an extensible platform to develop multi-language Cloud & Desktop IDEs with state-of-the-art web technologies. Not sure whether you need a web or desktop version or both? With Theia you can develop one IDE and run it in browsers or native desktop application from a single source. The Theia project is hosted at the Eclipse Foundation, a not-for-profit corporation, and is developed by a diverse community. Unlike other "open-source" projects, projects hosted at an Open-Source Foundation are protected against single-vendor decisions against the interest of the diverse community. Theia is designed in a modular way to allow extenders and adopters customizing and extending every aspect of it. Composing a custom IDE-like product is as easy as listing all needed extensions in a package.json file. Adding new functionality by implementing your own extensions is easy, too and provides all the flexibility you need.

Starting Price: $0

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15

Codespaces

GitHub

Use the full power of Visual Studio Code, including the editor, terminal, debugger, version control, settings sync, and the entire ecosystem of extensions. Work in the browser or hand off to your desktop. Spin up new dev environment for any sized project in seconds with prebuilt images. GitHub’s own 35GB dev image starts in under 10 seconds. Scale your cloud VMs up to 32 cores and 64GB of RAM. And with low-latency connections across four regions, you won’t even remember it’s not your local machine. Preview your changes in the browser with instant reloads (websocket and HMR support) and share private and public ports with your teammates. Every nerdy detail only you care about, configured just right, backed by your own dotfiles repository.

Starting Price: $4 per user per month

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16

JetBrains Fleet

JetBrains

Built from scratch, based on 20 years of experience developing IDEs. JetBrains Fleet uses the IntelliJ code-processing engine, with a distributed IDE architecture and a reimagined UI. We built Fleet to be a fast and lightweight text editor for when you need to quickly browse and edit your code. It starts up in an instant so you can begin working immediately, and it can easily transform into an IDE, with the IntelliJ code-processing engine running separately from the editor itself. Fleet inherits the things that developers love the most from IntelliJ-based IDEs – project and context aware code completion, navigation to definitions and usages, on-the-fly code quality checks, and quick-fixes. Fleet’s architecture is designed to support a range of configurations and workflows. You can simply run Fleet just on your machine, or move some of the processes elsewhere – for example by locating the code processing in the cloud.

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17

CoreIDE

CoreIDE

CoreIDE is a full stack IDE for Java, JavaScript, Node.js and TypeScript developers who work on Spring, Spring Boot, React, Express, Vue, Backbone, AngularJS and other web framework based applications. The IDE is not only limited to web development, you can use it to develop other type of projects like desktop, command line, mobile or stand alone applications. It's free Community version contains all the available features. Java • JavaScript • Node.js • TypeScript • Spring • Spring Boot • React • Express • Vue • Backbone • AngularJS

Starting Price: Free

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18

CodeTasty

CodeTasty

Modern, smart & extensible cloud IDE. CodeTasty is powerful IDE in the cloud with additional features only a cloud application can give you. Our IDE helps you write readable and clean code the smarter way - in real time. The code editor provides silk-smooth experience accompanied with error detection tools, code completion, built-in compilation and a lot more. Login to IDE and start coding. There is no setup at all, you’re ready to work on your projects right away. Experience desktop-like speed and performance while editing your files in the cloud. And, unlike desktop, see what your collaborators are doing. We understand every developer has different needs. You can install countless extensions to enhance your productivity. CodeTasty supports more than 40 languages. The editor supports all major languages and up to a hundred thousand lines of code in a single file.

Starting Price: $4 per month

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19

PromptIDE

xAI

The xAI PromptIDE is an integrated development environment for prompt engineering and interpretability research. It accelerates prompt engineering through an SDK that allows implementing complex prompting techniques and rich analytics that visualize the network's outputs. We use it heavily in our continuous development of Grok. We developed the PromptIDE to give transparent access to Grok-1, the model that powers Grok, to engineers and researchers in the community. The IDE is designed to empower users and help them explore the capabilities of our large language models (LLMs) at pace. At the heart of the IDE is a Python code editor that - combined with a new SDK - allows implementing complex prompting techniques. While executing prompts in the IDE, users see helpful analytics such as the precise tokenization, sampling probabilities, alternative tokens, and aggregated attention masks. The IDE also offers quality of life features. It automatically saves all prompts.

Starting Price: Free

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20

CodeLite

CodeLite

CodeLite is a free, open-source, cross-platform Integrated Development Environment (IDE) designed primarily for C, C++, PHP, and JavaScript development. It offers a lightweight and highly customizable environment with support for multiple compilers, including GCC, Clang, and Microsoft Visual C++. CodeLite features an intuitive code editor with syntax highlighting, auto-completion, and code refactoring capabilities. It also includes an integrated debugger with support for GDB, making it easy to set breakpoints, inspect variables, and trace call stacks. Additionally, CodeLite supports Node.js and TypeScript development, making it a versatile choice for both desktop and web-based applications. Its flexibility, cross-platform compatibility (Windows, macOS, and Linux), and integration with popular version control systems like Git and Subversion make it a go-to IDE for developers seeking a lightweight alternative to more resource-intensive environments.

Starting Price: Free

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21

CodeRunner

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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22

Eclipse PHP

Eclipse Foundation

The PHP IDE project delivers a PHP Integrated Development Environment framework for the Eclipse platform. This project encompasses the development components necessary to develop PHP-based web applications and facilitates extensibility. It leverages the existing web tools project in providing developers with PHP capabilities. The essential starting point for PHP developers, including a PHP language support, a Git client, XML Editor and Mylyn, terminal. The experience of developing PHP application with PDT can be extended with a large variety of plugins created by the Eclipse ecosystem. Syntax highlighting, syntax validation, content assistance, code navigation, PHP debugging (Zend Debugger / Xdebug), PHP Profiling (Zend Debugger / Xdebug), PHPUnit, code formatted, refactoring, code templates, remote projects, and the whole power of the Eclipse Ecosystem.

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23

RunCode

RunCode

RunCode offers online developer workspaces, which are environments that allow you to work on code projects in a web browser. These workspaces provide you with a full development environment, including a code editor, a terminal, and access to a range of tools and libraries. They are designed to be easy to use and allow you to get started quickly without the need to set up a local development environment on your own computer.

Starting Price: $20/month/user

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24

Continue

Continue

The leading open-source AI code assistant. You can connect any models and any context to create custom autocomplete and chat experiences inside the IDE Remain in flow while coding by removing the barriers that block productivity when building software. Accelerate development with a plug-and-play system that makes it easy to get started and integrates with your entire stack. Become a leader in AI by setting up your code assistant to evolve as new capabilities emerge. Continue autocompletes single lines or entire sections of code in any programming language as you type. Attach code or other context to ask questions about functions, files, the entire codebase, and more. Highlight code sections and press a keyboard shortcut to rewrite code from natural language.

Starting Price: $0/developer/month

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25

Supermaven

Supermaven

Supermaven lets you write code 2x faster with AI. Chat with GPT-4o, Claude 3.5 Sonnet, GPT-4, and other leading models. Use hotkeys to quickly view diffs, apply changes, start conversations, and switch models. Easily attach recently edited files to your messages - Supermaven Chat links the model's code responses back to your original code to show diffs and apply changes. Fix errors by automatically uploading your code together with compiler diagnostic messages in a single click.

1 Rating

Starting Price: $10 per month

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