
SurveyJS is a set of four open-source JavaScript libraries that offer the benefits of a tailor-made in-house survey application, while considerably reducing the time and resources needed to deploy the system. These libraries are independent of specific server code or database requirements and seamlessly integrate with popular JavaScript frameworks, including React, Angular, Vue.js, jQuery, Knockout, and more. They are designed to communicate with any server that can handle JSON requests, ensuring compatibility with various server architectures and databases.
The product family is composed of:
- An open-source MIT-licensed rendering library that renders dynamic JSON-based forms in your web application, and collects responses.
- A self-hosted drag & drop form builder that features an integrated CSS-based theme editor and a GUI for conditional rules. It automatically generates JSON definitions (schemas) of your forms in real time.
- PDF Generator, a library that renders SurveyJS surveys and forms as PDF files in a browser;
- The Dashboard library that allows you to simplify survey data analysis with interactive and customizable charts and tables.
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Okyline is an Executable Data Design (EDD) platform focused on executable validation contracts and operational data quality control.
Rather than managing separate specifications, validation code, tests, and monitoring dashboards, Okyline centralizes validation and quality supervision around a single readable executable contract acting as the operational reference for enterprise data flows.
The same contract powers deterministic validation, advanced business invariant checks, multi-format execution, data quality gates, and historical quality analytics across APIs, events, files, LLM structured outputs, and distributed operational systems.
Contracts are designed directly from annotated sample data, making validation rules immediately understandable for developers, architects, QA teams, and business analysts.
The Community Edition includes the public specification, a free Java runtime engine, a Claude AI assistant for contract generation, and an online studio supporting executable JSON validation contracts and JSON Schema transpilation.
The Enterprise Edition adds native validation for JSONL, XML, CSV, FIXED, and EDI flows together with operational quality dashboards and data quality gates, without requiring databases or centralized infrastructure.erprise Edition supports direct validation of JSON, JSONL, XML, CSV, FIXED, and EDI flows with operational quality dashboards and analytics, without databases.
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Liquid Studio
Liquid Studio offers advanced tools for XML/JSON development, Web Service Testing, Data Mapping and Data Transformation tools. The Development Environment includes a complete set tools to design XML and JSON data schemas and structures. These tools allow for editing, validating, and advanced transformation capabilities. The intuitive interface and extensive features will make it easy for novices and experts to save time and money while delivering successful projects. An intuitive user interface allows you to visualize and edit an abstracted view for your XML schema (XSD). It also validates your XSD against W3C standards. An intuitive user interface allows you to visualize and edit an abstracted view for your JSON schema. You can also validate your JSON Schema against IETF standards.
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JSON Editor
VDT Labs has created JSON Editor, a macOS application that helps users create, visualize, modify, validate, format, and save JSON documents with ease. This app comes equipped with a built-in HTTP client that supports various HTTP methods, such as GET, POST, PUT, DELETE, and HEAD, allowing users to seamlessly fetch and upload content, even binary files. Among its numerous features are multiple sibling selection, sorting options, and find-and-replace functions with regular expression support, along with customizable fonts and appearances for a personalized experience. A standout aspect of JSON Editor is its local operation, which guarantees complete privacy as no information is transmitted beyond the user's computer. It offers a well-structured and user-friendly interface for handling JSON data, enabling simple actions like adding, reordering, deleting, copying, and pasting items. Additionally, users can interact directly with raw JSON text, benefiting from features such as syntax highlighting, automatic indentation, and line numbering for improved readability and organization. This comprehensive tool is ideal for developers and anyone working with JSON, as it streamlines the process of data manipulation and ensures a high level of efficiency.
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