List of the Top 20 Free JSON Editors in 2025

JetBrains' IntelliJ IDEA serves as a powerful IDE specifically tailored for expert Java and Kotlin programming. It enhances your productivity and simplifies the process of writing high-quality code. Crafted to ensure you complete your tasks efficiently, it encompasses all the necessary tools and resources for utilizing the latest technologies. With its user-friendly interface and seamless workflow, it allows you to code confidently while prioritizing your privacy and security. This combination of features makes IntelliJ IDEA a top choice for developers who value both efficiency and safety in their work environment.

Apache NetBeans is a robust open-source Integrated Development Environment (IDE) that facilitates application development across various programming languages, including Java, JavaScript, PHP, HTML5, and C/C++. Known for its modular architecture, NetBeans offers developers an array of tools and functionalities tailored for crafting desktop, mobile, and web applications. It features sophisticated code editing, debugging, and profiling capabilities, along with an integrated visual GUI builder that streamlines the design of user interfaces specifically for Java applications. Furthermore, the IDE integrates effortlessly with version control systems such as Git, SVN, and Mercurial, thereby fostering collaboration within development teams. As a project under the auspices of the Apache Software Foundation, NetBeans undergoes continuous enhancement by a committed community, ensuring its capabilities remain current and effective. This ongoing development makes NetBeans not only a reliable tool but also a highly flexible option for developers in various sectors. The combination of its comprehensive features and strong community support enables NetBeans to appeal to both beginners and experienced developers, who appreciate its versatility and user-friendly design. Ultimately, the IDE's commitment to innovation ensures it remains a relevant choice in the ever-evolving landscape of software development.

Atom is a contemporary text editor designed for the digital age, built on the Electron framework and influenced by the features we love in our favorite editing applications. It prioritizes extensive customization while keeping its default configuration user-friendly. As an essential part of a developer's toolkit, a text editor works in tandem with other tools rather than operating independently. With the built-in GitHub package, managing your Git and GitHub workflows is effortless within Atom—allowing you to create branches, stage and commit changes, push and pull updates, resolve merge conflicts, and review pull requests, all from inside the editor. This package is pre-installed, so you can dive right in! Atom supports a range of operating systems, such as OS X, Windows, and Linux, promoting broad accessibility. You can quickly search for and install new packages or create your own directly from the editor, enhancing its versatility. Moreover, Atom boosts your coding productivity with an intelligent autocomplete feature and allows you to browse and open individual files, entire projects, or multiple projects in one window, making it a multifaceted choice for developers. With its user-centric design, Atom aims to streamline the coding process, catering to both beginners and seasoned developers, ultimately fostering a more efficient coding environment. This adaptability ensures that no matter your skill level, you can find the tools and features that best suit your workflow.

Zed is a sophisticated code editor designed to foster smooth collaboration between humans and artificial intelligence, with a strong focus on performance optimization. Constructed entirely in Rust, it leverages the power of multiple CPU cores and GPU resources to enable the incorporation of advanced language models into your coding processes, facilitating tasks like code generation, transformation, and thorough analysis. The platform promotes instantaneous communication among team members, offering features for collaborative note-taking, screen sharing, and effective project management. With its innovative multibuffer system, users can edit chosen snippets from the entire codebase within a unified interface, enhancing convenience and workflow. Additionally, it incorporates inline code execution through Jupyter runtimes, which allows for collaborative editing of notebooks. Zed is versatile and supports a plethora of programming languages, made possible by the integration of Tree-sitter, WebAssembly, and the Language Server Protocol. Its fast native terminal works in conjunction with Zed's intelligent task runner and AI capabilities, significantly boosting productivity. The editor also supports advanced modal editing through Vim bindings, featuring tools like text objects and marks, which contribute to efficient navigation. Developed by a large and diverse global community of thousands of programmers, Zed invites users to improve their experience with a vast selection of extensions that enhance language functionalities, introduce various themes, and much more. Moreover, its intuitive design is crafted to simplify development workflows, making it a premier option for programmers eager to maximize their coding efficiency while enjoying a collaborative environment. Ultimately, Zed stands out by combining cutting-edge technology with user-centered features to transform the coding experience.

Create, modify, and deploy fullstack applications with just a single click. Craft beautiful user interfaces thanks to our partnership with Progress KendoReact. Gain direct access to Definitions and other excellent features seamlessly within Visual Studio Code. Edit your application in real-time without the need to refresh the page, all while keeping your app's state intact. Quickly integrate any NPM package into your project more efficiently than you would on your local environment, courtesy of our cutting-edge in-browser development server. Easily drag and drop files and folders into the editor—bypassing the tediousness of copy-pasting, uploading, or executing git commands. Your application is hosted, facilitating easy live sharing with others. Start new projects by simply filling out a form with the necessary project information—this is especially useful when using our JavaScript SDK isn't feasible. When you have your desired StackBlitz project open, simply drag and drop any files or folders you wish to import. Moreover, the intuitive interface significantly improves your overall development experience, making it more enjoyable and efficient. With these tools at your disposal, developing applications has never been easier or more streamlined.

Liquid Studio provides sophisticated tools for the development of XML and JSON, as well as functionalities for Web Service Testing, Data Mapping, and Data Transformation. Its Development Environment encompasses a comprehensive collection of tools designed for crafting XML and JSON data schemas and structures. These capabilities enable users to edit, validate, and perform advanced transformations on their data. With a user-friendly interface and a wide range of features, both beginners and experienced developers can efficiently complete projects while optimizing their time and resources. The platform offers an intuitive interface that facilitates the visualization and editing of XML Schema Definitions (XSD), ensuring compliance with W3C standards through validation. Additionally, users can similarly visualize and modify their JSON schemas, with the added benefit of validating these schemas against IETF standards for enhanced reliability. This makes Liquid Studio an essential tool for any data-centric project.

JSON Editor Online is a versatile web application designed for users to view, edit, format, repair, compare, query, transform, validate, and share JSON data efficiently. Offering various editing modes like text, tree, and table, it caters to diverse user preferences and requirements. The platform supports large JSON files, accommodating sizes up to 512 MB, and includes features such as JSON Schema validation, conversion capabilities from JSON to CSV, and offline access options. Users can easily load and save their JSON files through multiple methods, including clipboard actions, drag-and-drop, disk storage, and URL inputs. Another notable feature is "Smart JSON Formatting," which significantly improves both the compactness and readability of JSON presentations. While the free version contains advertisements, users have the option to subscribe for an ad-free experience along with additional features, such as private cloud document storage, which enhances overall usability. With its extensive functionality and user-friendly interface, JSON Editor Online proves to be an essential tool for developers and data analysts seeking efficiency in their work. The combination of editing capabilities and collaborative features positions it as a go-to resource for anyone dealing with JSON data.

Json Genie (Viewer & Editor) is an application developed by Tuyware for Android devices, designed to provide a comprehensive solution for managing JSON files directly on smartphones. It leverages the native file-opening capabilities of Android, enabling users to access JSON files stored in various locations across their devices. The app offers a wide range of functionalities, allowing users to duplicate arrays, objects, and values, as well as to create new entries, modify existing data, and generate entirely new files from scratch. In addition, Json Genie supports the opening of multiple files simultaneously, which significantly improves the efficiency of data comparison and editing tasks. This multitasking capability not only enhances productivity but also makes it an indispensable resource for developers and individuals who frequently work with JSON data. With its user-friendly interface, Json Genie caters to both novice users and experienced professionals alike.

The Online JSON Editor is a web-based tool designed to simplify the tasks of viewing, editing, formatting, validating, and beautifying JSON data. It features a user-friendly interface that enables individuals to quickly adjust complex JSON structures, accommodating various input methods like manual typing, copy-pasting, file uploads, and data retrieval from URLs. Users have the option to view their JSON data in different formats, including tree, form, code, and text displays, tailored to suit their specific needs. The application also incorporates real-time formatting, along with minification that retains the original code's structure, and allows for undo and redo actions, enhancing usability. Additionally, it provides clear error messages to assist users in identifying issues and works seamlessly across different devices and operating systems. By functioning entirely within the browser, it ensures that user data remains confidential and is not sent to external servers, thereby bolstering security and efficiency. This versatile tool not only helps users proficiently manage their JSON data but also serves as an invaluable asset for developers and data analysts, highlighting its significance in the tech landscape. With its robust features, the Online JSON Editor stands out as a reliable resource that fosters productivity and accuracy in handling JSON data.

JSONBuddy is a comprehensive JSON editor and validator specifically designed for Windows users, facilitating the smooth creation and management of JSON and JSON Schema files. It encompasses a range of functionalities, including a text editor that offers syntax highlighting, auto-completion, and code folding, as well as a grid-style editor that simplifies the construction of JSON structures. The application ensures the accuracy of JSON files through integrated syntax checks and validation against JSON Schema standards, supporting Drafts 4, 6, 7, 2019-09, and 2020-12. Additionally, JSONBuddy allows for seamless conversion between JSON, XML, and CSV formats, making it possible for users to import CSV data to create JSON files and generate HTML documentation directly from JSON Schemas. For users managing large JSON files, it boasts robust features that enable efficient opening, navigation, and editing of files that can contain thousands or even millions of lines, proving to be an indispensable resource for both developers and data analysts. With its diverse functionality and user-friendly design, JSONBuddy stands out as a crucial tool for anyone engaged in working with JSON data and enhances productivity significantly.

JSONedit is a lightweight and versatile JSON editor tailored for Windows, offering multiple views such as text, tree, and list formats to enhance data editing and visualization. This portable software is approximately 2 MB in size, requires no installation, and stores its configuration settings in a .ini file within its own folder. Key features include syntax highlighting, the preservation of node expansion states between sessions through tree reuse, and drag-and-drop capabilities for rearranging nodes, along with array manipulation options like cloning and CSV import. Users can seamlessly toggle between compact and indented JSON formats, conduct searches in both text and tree views, and validate JSON syntax. Although primarily designed for Windows, JSONedit can also run on Linux systems using WINE, although results may vary. As a free application, it not only promotes unrestricted usage but also encourages widespread distribution, making it available for a larger user base. Its user-friendly interface and efficient functionality render JSONedit a compelling option for anyone needing to manage JSON data with ease, fostering productivity and convenience in data handling tasks.

Smart JSON Editor is a powerful application tailored for macOS, aimed at developers who need to create, edit, and manage JSON data structures for their apps and websites. This tool features a highly intuitive JSON tree interface that improves data visualization, and it includes value transformers that make the modification and creation of JSON values a streamlined process. Additionally, it comes equipped with an integrated HTTP server, enabling efficient testing within applications and thus enhancing the overall development workflow. Users can effortlessly import and export JSON files using various methods like file uploads, clipboard operations, and iCloud integration, which simplifies the management of data. The application also supports the development of smart objects (classes) that maintain essential structures, making it easier to organize associative arrays. Beyond these capabilities, Smart JSON Editor provides advanced functionalities such as JSON Path navigation, detailed API request management with organized endpoint hierarchies, and token transformers that support dynamic value creation for API headers and parameters. It also includes robust search and filtering tools, an iCloud library for streamlined asset storage, and local server connection options, making it an indispensable resource for developers. With such a diverse range of features, Smart JSON Editor stands out as a crucial tool for anyone dealing with JSON data, ultimately enhancing their productivity and efficiency in development projects.

JSON Crack is an innovative open-source application designed to transform complex data formats such as JSON, YAML, CSV, XML, and TOML into visually appealing and comprehensible graphs, thus improving data analysis and interpretation. Users can either input data manually, upload files, or share links, with the application efficiently generating a visual tree graph from the provided information. It also supports data conversion between different formats, enabling simple transitions from JSON to CSV or XML to JSON, while offering features for JSON formatting, validation, and automatic code generation for TypeScript interfaces, Golang structs, and JSON Schemas. In addition, the platform includes advanced functionalities for decoding JWTs, running JQ queries, and executing JSON Path commands. Users have the option to export their visualizations in formats like PNG, JPEG, or SVG, ensuring that they can share their insights easily. Crucially, all data processing occurs locally on the user’s device, safeguarding their privacy. This robust tool not only enhances user experience but also equips developers and data analysts with secure and efficient methods to manage their data, making it an essential asset in the realm of data handling. Ultimately, JSON Crack stands out as a comprehensive solution that caters to the diverse needs of those working with data.

MongoLime offers an accessible platform that simplifies the oversight and management of MongoDB connections. Users can effortlessly view and manipulate documents while accessing essential statistics, indexes, and a variety of operations. The intuitive editor allows for the seamless creation and modification of documents, and a raw JSON editor caters to more complex document needs. With the aid of a user-friendly query builder, searching for documents becomes a straightforward task, and saved searches can be easily retrieved for convenience. Additionally, the application enables users to export databases and collections in a compressed ZIP file format. Tailored for mobile devices and tablets running on Android, MongoLime’s interfaces ensure smooth data management. Moreover, the app offers the capability to connect directly to MongoDB databases or operate in Replica Set mode, providing users with enhanced flexibility and control over their data connections. This versatility makes MongoLime an appealing choice for users looking to efficiently manage their MongoDB environments.

Eclipse Theia enables the development of multi-language IDEs for both Cloud and Desktop environments, utilizing cutting-edge web technologies. If you're uncertain about whether to opt for a desktop or web-based solution, Theia empowers you to build a single IDE that can operate seamlessly in web browsers or as a native desktop application, all from one codebase. Managed by the Eclipse Foundation, a non-profit organization, Theia is cultivated by a wide-ranging community of contributors. Unlike many other open-source projects, those hosted under an Open-Source Foundation enjoy protection from unilateral vendor decisions that could negatively impact the interests of the community. Theia's modular architecture permits users to tailor and enhance every facet of the IDE. Creating a customized IDE-like product is straightforward; you just need to specify the necessary extensions in a package.json file. Adding new features is also a breeze, as you can implement your extensions with ease, providing you with unparalleled flexibility in your development process. This adaptability makes it an excellent choice for developers looking to innovate and refine their tools.

CKEditor 5 is an advanced WYSIWYG rich text editor designed to meet the evolving demands of businesses and users in today's digital landscape. It empowers software developers and creators to efficiently develop robust writing tools for various applications within a matter of hours. With its highly customizable framework, pre-built options, seamless integrations, comprehensive documentation, and dependable customer service, this editor can be precisely adapted to suit your specific requirements. Furthermore, its versatility ensures that it remains relevant as technology continues to advance.

Built from scratch, JetBrains Fleet leverages twenty years of expertise in developing integrated development environments (IDEs). It employs the powerful IntelliJ code-processing engine, boasting a distributed architecture alongside a modern user interface tailored for today's developers. The primary objective behind Fleet was to design a fast and effective text editor that facilitates rapid code browsing and editing. It opens almost instantaneously, allowing users to commence their tasks without any interruptions, and it possesses the ability to transform into a comprehensive IDE, with the IntelliJ engine functioning separately from the editing interface. Fleet includes all the popular features associated with IntelliJ-based IDEs, including context-specific code completion, straightforward navigation to definitions and usages, real-time evaluations of code quality, and handy quick-fixes. The thoughtful architecture of Fleet is crafted to support a range of configurations and workflows, which means it can operate locally on your device or delegate certain processes to the cloud, highlighting its adaptability for various development tasks. This inherent flexibility guarantees that developers can select the configuration that aligns perfectly with their workflow preferences, ultimately enhancing productivity levels. In a landscape where efficiency is paramount, Fleet stands out as a tool that can evolve alongside the needs of the developer.

Helix Editor is a cutting-edge text editing tool specifically designed for developers seeking a fast, customizable, and efficient editing experience. Prioritizing productivity, it utilizes a modal editing style similar to Vim, allowing users to navigate, select, and modify text easily using intuitive keyboard shortcuts. Its rich array of features includes syntax highlighting, multi-caret editing, and support for various programming languages like Rust, Python, and JavaScript. Additionally, Helix integrates the Tree-sitter parsing library to provide syntax-aware editing capabilities, which enhances the handling of complex code structures. The clean and organized interface, paired with a strong focus on performance, positions Helix Editor as an outstanding option for developers who appreciate both speed and flexibility in their workflows. In essence, this editor cultivates a highly efficient coding atmosphere, enabling programmers to engage deeply with their tasks while minimizing interruptions for a more productive coding session. As a result, Helix Editor not only enhances individual productivity but also contributes to a more enjoyable development experience overall.

CodeBeautify serves to improve, minimize, and convert your code or data to produce the specific results you need. The visibility options determine how a program is displayed on codebeautify.org and the individuals allowed to view it. Users can share their code by clicking the Save Online Button, which makes it available on the recent page for anyone to see. Each user is provided with a distinct link for their personal code, which remains hidden from their recent page to protect the confidentiality of each project. This feature enables users to effectively handle their code while ensuring they retain authority over who can access it. Ultimately, this balance of accessibility and privacy makes CodeBeautify a valuable tool for developers seeking to share or safeguard their work.

RunCode provides online workspaces designed for coding projects that can be accessed directly through a web browser. Each workspace features a fully equipped development environment, which consists of a code editor, a terminal, and a selection of various tools and libraries. Users will find these workspaces to be user-friendly, and they can be conveniently configured on personal computers. Additionally, the flexibility of these online environments allows for seamless collaboration among team members, enhancing productivity and efficiency.