Open Source TypeScript JSON Software
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TypeScript JSON Software
View related business solutionsBrowse free open source TypeScript JSON Software and projects below. Use the toggles on the left to filter open source TypeScript JSON Software by OS, license, language, programming language, and project status.
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Spectral
A flexible JSON/YAML linter for creating automated style guides
An open-source API style guide enforcer and linter. Why write API Style Guides as lengthy manifestos when you could automate them? Make sure APIs are secure, consistent, and useful. Spectral is open-source but is also baked into Stoplight, with extensions for VS Code and other integration options, giving you real-time feedback wherever you design APIs. Spectral can be used as a generic ruleset engine on any JSON or YAML data but was built with OpenAPI, AsyncAPI, and JSON Schema in mind. Use Spectral rules to target API descriptions for quality improvement or enforce API Style Guide rules, such as naming conventions for OpenAPI models or prohibiting integers in URLs. -
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Editor.js
A block-style editor with clean JSON output
Editor.js is an open-source text editor offering a variety of features to help users create and format content efficiently. It has a modern, block-style interface that allows users to easily add and arrange different types of content, such as text, images, lists, quotes, etc. Each Block is provided via a separate plugin making Editor.js extremely flexible. Editor.js outputs clean JSON data instead of heavy HTML markup. Use it in the Web, iOS, Android, AMP, Instant Articles, speech readers, and AI chatbots, everywhere. Easy to sanitize, extend, and integrate with your logic. -
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generatedata
A powerful, feature-rich, random test data generator
This is the repo for the downloadable version of generatedata.com. The script is essentially an engine to generate any sort of random data in any format. It currently comes with 30 or so Data Types (types of data it generates), 12 Export Types (formats for the data, like CSV, SQL, JSON), plus around 32 data sets for specific countries (city names, regions, etc). But more importantly, it can be extended in any way you want. Check out the developer documentation for more information on that. The current major version of the script is 4.x, which was a big change over earlier releases. Earlier versions were written in PHP and MYSQL and 3.x offered a REST API to let you generate the data programmatically rather than via an API. While this is still planned for 4.x it's not currently offered, and the plan it to tackle that after making the script available as an npm package - which we feel will be a more convenient way to programmatically generate data over the more agnostic REST approach. -
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browser-compat-data
This repository contains compatibility data for Web technologies
The browser-compat-data ("BCD") project contains machine-readable browser (and JavaScript runtime) compatibility data for Web technologies, such as Web APIs, JavaScript features, CSS properties, and more. Our goal is to document accurate compatibility data for Web technologies, so web developers may write cross-browser compatible websites more easily. BCD is used in web apps and software such as MDN Web Docs, CanIUse, Visual Studio Code, WebStorm and more. -
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tslog
Universal Logger for TypeScript and JavaScript
Powerful, fast, and expressive logging for TypeScript and JavaScript. Every incoming log message runs through a number of steps before being displayed or handed over to a "transport". Every step can be overwritten and adjusted. By default, tslog is optimized for the best developer experience and includes some default settings that may impact performance in production environments. -
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json-joy
json-joy — JSON CRDT, JSON CRDT Patch, JSON Patch
json-joy library implements cutting-edge real-time and collaborative editing algorithms and other utilities for JSON data models. Major focus of json-joy is development of the JSON CRDT protocol, a Conflict-free Replicated Data Type that enables seamless merging of changes in JSON data models, avoiding conflicts between replicas. -
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svelte-jsoneditor
Web-based tool to view, edit, format, repair, query, & transform JSON
A web-based tool to view, edit, format, transform, and validate JSON. The library is written with Svelte, but can be used in plain JavaScript too, and in any framework (SolidJS, React, Vue, Angular, etc). View and edit JSON, has a low-level text editor and high-level tree view and table view. Format (beautify) and compact JSON. Sort, query, filter, and transform JSON. JSON schema validation and pluggable custom validation. Color highlighting, undo/redo, search and replace. Utilities like a color picker and timestamp tag. Handles large JSON documents up to 512 MB. -
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Roarr
JSON logger for Node.js and browser
JSON logger for Node.js and browser. A transport in most logging libraries is something that runs in-process to perform some operation with the finalized log line. For example, a transport might send the log line to a standard syslog server after processing the log line and reformatting it. Roarr does not support in-process transports because Node processes are single threaded processes (ignoring some technical details). Given this restriction, Roarr purposefully offloads handling of the logs to external processes so that the threading capabilities of the OS can be used (or other CPUs). -
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Express Zod API
A Typescript library to help you get an API server up and running
Start your API server with I/O schema validation and custom middlewares in minutes. I made this library because of the often repetitive tasks of starting a web server API with the need to validate input data. It integrates and provides the capabilities of popular web servers, logger, validation, and document solutions. Therefore, many basic tasks can be accomplished faster and easier. -
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Typia
Super-fast/easy runtime validations and serializations
Super-fast/easy runtime validations and serializations through transformation. -
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node-minify
Light Node.js module that compress javascript, css and html files
A very light minifier Node.js module. It allows you to compress JavaScript, CSS and HTML files. -
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react-jsonschema-form
A React component for building Web forms from JSON Schema
A simple React component capable of using JSON Schema to declaratively build and customize web forms. -
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JSON Forms
Customizable JSON Schema-based forms with React, Angular and Vue
JSON Forms is a declarative framework for efficiently building form-based web UIs. These UIs are targeted at entering, modifying and viewing data and are usually embedded within an application. Writing HTML templates and Javascript for data binding by hand is hard, especially in applications of reasonable size. Furthermore, a form is often more than just a collection of input fields and more advanced functionality is required, e.g. validation or conditional visibility. JSON Forms utilizes the capabilities of JSON and JSON schema and provides a simple and declarative way of describing forms. Forms are then rendered with a UI library or framework, e.g. React or Angular. -
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JSON Hero
JSON Hero is an open-source, beautiful JSON explorer for the web
JSON Hero is a beautiful and powerful JSON viewer designed for developers who work with large and complex JSON files. It runs as a web-based interface (and as a standalone app) that provides semantic, interactive rendering of JSON content, helping users understand the structure and meaning of data at a glance. JSON Hero automatically detects data types such as URLs, dates, colors, and base64 images, and presents them in meaningful ways. It’s designed for productivity and readability, with dark mode support, quick navigation, and collaboration features. -
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JsonDB
A simple "database" that use JSON file for Node.JS.
JsonDB is now using the concept of async/await for all its calls since we read from the database file on demand and depending on how the database is configured, we might write at each push. The module stores the data using JavaScript Object directly into a JSON file. You can easily traverse the data to directly reach the desired property using the DataPath. The principle of DataPath is the same as XMLPath. -
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BSON parser
BSON Parser for node and browser
BSON parser is the core JavaScript implementation of BSON (Binary JSON), the data format used by MongoDB to represent documents on the wire and in storage. It provides encoding and decoding capabilities so JavaScript environments like Node.js and browsers can serialize rich data structures (including types not native to JSON) into the compact, efficient BSON binary representation used by MongoDB drivers and servers. Value types such as ObjectId, Binary, UTC datetime, Decimal128, and Long are provided as first-class objects, enabling precise representation of data that would otherwise be lossy or awkward in plain JSON. js-bson is designed for performance, with optimized algorithms for reading and writing binary data, minimizing overhead in database operations. Because it’s a foundational building block for MongoDB drivers in JavaScript, the library ensures consistency and compatibility between client applications and the MongoDB server. -
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jsonrepair
Repair invalid JSON documents
jsonrepair is a JavaScript utility designed to automatically repair malformed or invalid JSON documents by correcting common syntax and formatting issues. The library is capable of fixing problems such as missing commas, trailing commas, invalid quotes, unescaped characters, incomplete values, comments, and improperly formatted structures while preserving the intended data as accurately as possible. It is especially useful in workflows involving AI-generated content, manually edited configuration files, or unreliable external APIs where malformed JSON frequently occurs. jsonrepair supports both browser and Node.js environments, making it suitable for client-side validation tools and backend processing pipelines alike. The project focuses on automation and fault tolerance, reducing the need for manual cleanup of corrupted JSON data. Its lightweight architecture and practical functionality have made it valuable for modern applications that process unpredictable structured text. -
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JSON Schema to TS
Infer TS types from JSON schemas
A lot of projects use JSON schemas for runtime data validation along with TypeScript for static type checking. -
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express-openapi-validator
Auto-validates api requests, responses, and securities using ExpressJS
Auto-validates api requests, responses, and securities using ExpressJS and an OpenAPI 3.x specification. Express-openapi-validator is an unopinionated library that integrates with new and existing API applications. express-openapi-validator lets you write code the way you want; it does not impose any coding convention or project layout. Simply, install the validator onto your express app, point it to your OpenAPI 3 specification, then define and implement routes the way you prefer. An OpenApi validator for ExpressJS that automatically validates API requests and responses using an OpenAPI 3 specification. Ensure express is configured with all relevant body parsers. Body parser middleware functions must be specified prior to any validated routes. -
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JSONView
A web extension that helps you view JSON documents in the browser
A web extension that helps you view JSON documents in the browser. Normally when encountering a JSON document (content type application/json), Firefox simply prompts you to download the view. With the JSONView extension, JSON documents are shown in the browser similar to how XML documents are shown. The document is formatted, highlighted, and arrays and objects can be collapsed. Even if the JSON document contains errors, JSONView will still show the raw text. JSONView is a Web extension compatible with Firefox and Google Chrome that helps you view JSON documents in the browser. Once you've got JSONView installed, check out the example JSON file to see the extension in action! If you'd like to contribute to JSONView but don't want to code, consider contributing a translation. Copy the existing localization files from src/_locale and fill them in for your own language, then send a pull request. You can do it all from the GitHub interface. There's not many strings to translate! -
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json-render
Generate dashboards, widgets, apps, and data visualizations
json-render is a lightweight, framework-agnostic utility designed to turn JSON data into usable HTML layouts automatically, offering a straightforward way to visualize structured data without writing bespoke template code. It takes deeply nested JSON objects and renders them into intuitive, readable UIs by mapping data types and keys to semantic HTML elements, which helps developers prototype dashboards, debugging tools, or data-driven interfaces quickly. The tool is built to be embeddable in any JavaScript environment — client-side or server-side — without dependencies on a particular frontend framework, making it easy to drop into documentation sites, dev tools, or internal utilities. JSON-Render also supports customization hooks and configuration options so that developers can fine-tune how types are displayed, apply custom styling, and inject interactive behaviors like folding nested sections or filtering keys. -
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Ajv JSON schema validator
The fastest JSON schema Validator
Security and reliability for JavaScript applications. Ensure your data is valid as soon as it's received. Instead of having your data validation and sanitization logic written as lengthy code, you can declare the requirements to your data with concise, easy to read and cross-platform JSON Schema or JSON Type Definition specifications and validate the data as soon as it arrives to your application. TypeScript users can use validation functions as type guards, having type level guarantee that if your data is validated, it is correct. Ajv was designed at the time when there were no validators fully complying with JSON Schema specification, aiming to achieve the best possibly validation performance via just-in-time compilation of JSON schemas to code. Ajv achieved both speed and rigour, but initially security was an afterthought, many security flaws have been fixed thanks to the reports from its users. -
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Figma Sprite Generator
A Figma plugin to generate sprite sheets and JSON files from selected
Figma Sprite Generator is a Figma plugin designed to create sprite sheets and corresponding JSON metadata from selected icons. This tool is ideal for designers and developers working on web projects or UI libraries, as it automates sprite generation for more efficient workflows. Users can quickly convert their icons into PNG sprites and extract JSON files with icon dimensions and positions, streamlining the process of incorporating sprites into websites or applications. -
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conf
Simple config handling for your app or module
All you have to care about is what to persist. This module will handle all the dull details like where and how. It does not support multiple processes writing to the same store. I initially made this tool to let command-line tools persist some data. -
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Manfred Awesomic CV
Manfred Awesomic CV
The MAC (or Manfred Awesomic CV) is a(nother) naive attempt to create a standard open-source format to define and share CVs. The format is defined as a JSON Schema to validate CVs stored as JSON files. There are A LOT of CV formats, and some of them are a nice try to define a universal CV format, but we think that a CV should include not only what candidates are or know but also what they are interested in and what they want to become. Like most open-source projects, the first use case was found in the company where the first contributors worked. Manfred is committed to the idea that every person should keep control over their personal and professional data. This means that they should be able to export their data from any platform in a machine-readable format with a Model Definition to process that data efficiently. This is how the MAC was born.
