Best Web-Based JSON Editors of 2025

VSCode: A revolutionary approach to code editing. It's completely free, open-source, and compatible with all platforms. Experience more than just basic syntax highlighting and autocomplete; with IntelliSense, you gain intelligent suggestions that are based on the types of variables, definitions of functions, and imported modules. You can also debug your code directly within the editor, allowing you to launch or connect to your active applications while utilizing breakpoints, call stacks, and an interactive console for deeper insights. Collaborating with Git and other source control management (SCM) systems is simpler than ever; you can review differences, stage files, and commit changes right from within the editor itself. Easily push and pull changes from any hosted SCM service without hassle. Looking for additional capabilities? You can enhance your experience by installing extensions that introduce new languages, themes, debuggers, and connections to various services. These extensions operate in their own processes, ensuring they won't hinder your editor's performance. Discover the endless possibilities with extensions. Furthermore, with Microsoft Azure, you can efficiently deploy and host a variety of sites built with React, Angular, Vue, Node, Python, and more, while also being able to store and query both relational and document-based data, and scale effortlessly using serverless computing solutions. This powerful integration streamlines your development workflow and enhances productivity.

Build, modify, and launch fullstack applications with just a single click. Design stunning user interfaces made possible through our collaboration with Progress KendoReact. Access Definitions and other fantastic features directly within Visual Studio Code seamlessly. Edit your application in real-time without needing to reload the page, all while maintaining your app's state. Quickly bring any NPM package into your project faster than you would locally, thanks to our innovative in-browser development server. Effortlessly drag and drop files and folders into the editor—eliminating the hassle of copy-pasting, uploading, or using git commands. Your application is hosted, allowing for straightforward live sharing. Initiate new projects by simply submitting the required project data from a form—this is particularly helpful when the use of our JavaScript SDK isn't an option. When your desired StackBlitz project is open, just drag and drop any files or folders that you wish to import easily. Additionally, the user-friendly interface enhances your overall development experience.

WebStorm serves as a comprehensive integrated development environment tailored for JavaScript and its associated technologies. Similar to other products from JetBrains, it enhances the development journey by automating mundane tasks and streamlining the management of intricate projects. The IDE continuously performs numerous code inspections during your coding process, enabling you to write more reliable and maintainable code by identifying potential issues early on. You can effortlessly refactor your entire codebase with just a few clicks, ensuring that no detail is overlooked during significant structural modifications. With all the essential tools for JavaScript development readily available from the start, you can dive right into coding. By allowing WebStorm to handle routine tasks, you can boost your productivity and dedicate more time to creative endeavors. If concerns arise about risking important changes in Git or inadvertently breaking components throughout your project, WebStorm is designed to make these challenging tasks more manageable, empowering you to concentrate on the broader objectives of your work. Ultimately, WebStorm not only facilitates a smoother coding experience but also fosters an environment where developers can thrive in their creativity.

JSON Editor Online is a comprehensive web-based application tailored for the viewing, editing, formatting, repairing, comparing, querying, transforming, validating, and sharing of JSON data. It includes several editing modes, such as text, tree, and table, catering to different user preferences and needs. The platform can handle sizable JSON files of up to 512 MB and boasts features like JSON Schema validation, conversion from JSON to CSV, and offline accessibility. Users can conveniently load and save their JSON data through various methods, including clipboard actions, drag-and-drop functionality, disk storage, and direct URL inputs. Additionally, the tool provides a "Smart JSON Formatting" feature that enhances the compactness and readability of JSON presentations. Although the free version displays advertisements, users can choose subscription options for an ad-free experience along with extra features, such as private cloud document storage, thereby enhancing usability. This extensive functionality makes JSON Editor Online a valuable resource for developers and data analysts alike.

The Online JSON Editor is a browser-based application that streamlines the process of viewing, editing, formatting, validating, and beautifying JSON data. It boasts an intuitive interface that allows users to swiftly modify intricate JSON structures while supporting various input methods, such as manual entry, copy-pasting, uploading files, and fetching data from URLs. Users can choose from different code representations, including tree, form, code, and text views, catering to their individual preferences when interacting with JSON data. The tool also features real-time formatting, minification that preserves the integrity of the original code, as well as undo and redo capabilities, making it user-friendly and efficient. Furthermore, it highlights errors with informative messages and is compatible with a wide range of devices and operating systems. Operating entirely within the browser ensures that user data remains secure, as it is not transmitted to external servers, thus enhancing both security and performance. This comprehensive tool empowers users to manage their JSON data effectively, making it an essential resource for developers and data analysts alike.

Eclipse Theia allows you to create multi-language Cloud & Desktop IDEs using state-of-the art web technologies. Are you unsure whether you need a desktop or web version? Theia allows you to create one IDE and have it run in browsers or native desktop applications from a single source. The Eclipse Foundation hosts the Theia project. It is a non-profit corporation and is developed by a diverse group. Projects hosted at an Open-Source Foundation, unlike other open-source projects, are protected from single-vendor decisions that would be detrimental to the interests of the diverse community. Theia is modularly designed to allow users and extenders to customize and extend every aspect of the system. It is easy to create a custom IDE-like product by simply listing all required extensions in a package.json. It is simple to add new functionality by implementing your extensions. This gives you all the flexibility that you need.

CKEditor 5 is a modern WYSIWYG rich text editor that can easily accommodate the requirements of businesses and users in the age of digital transformation. It allows software creators and developers to build powerful writing solutions for applications of all sorts, within hours. Thanks to a fully customizable framework, ready-to-use builds, native integrations, extensive documentation, and reliable customer support, the editor can be fully tailored to your needs.

At its foundation lies an interpreter dedicated to Emacs Lisp, a variant of the Lisp programming language enhanced for text editing tasks. It offers content-aware editing modes that feature syntax highlighting for a variety of file formats. The platform includes comprehensive built-in documentation, complete with a tutorial aimed at newcomers. Users benefit from extensive Unicode support accommodating nearly all human scripts. It is highly customizable, allowing modifications through Emacs Lisp code or via a graphical interface. Beyond mere text editing, it encompasses a diverse array of functionalities, such as a project planner, email and news reader, debugging interface, calendar, IRC client, and much more. The presence of a packaging system enables users to download and install various extensions seamlessly. Additionally, it provides built-in support for arbitrary-size integers and utilizes HarfBuzz for effective text shaping. There is also native functionality for JSON parsing, improved support for Cairo drawing, and the adoption of portable dumping in lieu of unexec. The system adheres to XDG conventions for initialization files and includes an additional early-init file for enhanced customization. Furthermore, it supports built-in tab bar and tab-line features, as well as the ability to resize and rotate images without relying on ImageMagick, making it a versatile tool for a wide range of tasks. Overall, it stands out as a powerful platform that caters to a multitude of user needs beyond simple text manipulation.

CodeBeautify is designed to enhance, compress, and transform your code or data to achieve the desired output. The visibility settings dictate how a program can be viewed on codebeautify.org and who is permitted to access it. By clicking the Save Online Button, anyone can access the code, which will then appear on the recent page. Each user has access to their own code through a unique link, although this personal code is not displayed on the user's recent page, ensuring privacy for individual projects. This functionality allows users to efficiently manage their code while maintaining control over its accessibility.

RunCode offers online workspaces that allow you to work in a web browser on code projects. These workspaces offer a complete development environment that includes a code editor, a terminal and access to a variety of tools and libraries. These workspaces are easy to use and can be set up on your own computer.

The online JSON Editor provided by JSON Formatter is an intuitive tool crafted for the purposes of editing, viewing, and analyzing JSON data efficiently. Among its numerous features are capabilities for formatting, beautifying, and validating JSON, in addition to converting it into other formats like XML, CSV, and YAML. Users have the option to load their JSON data through file uploads or by entering URLs, and they can conveniently share their edited JSON via generated links. Operating entirely within the browser guarantees that data remains local, which significantly boosts both security and performance. This makes it an ideal choice for developers and data analysts alike who prioritize data privacy while working with various JSON formats.