SurveyJS Form Library is a free, MIT-licensed JavaScript form library that renders dynamic, JSON-defined forms and surveys inside React, Angular, Vue, and plain JavaScript applications, and it is built for front-end developers and product teams who need data-entry tools without handing form definitions or submitted responses to a hosted service.

What it is

SurveyJS Form Library is an open-source JavaScript and TypeScript form library that renders dynamic, JSON-based forms and surveys in the browser. Form content and structure, validation rules, conditional logic, navigation, and appearance are all defined through a SurveyJS JSON form definition, so a form is data rather than hand-written markup and component code. The library runs entirely in the browser and collects responses there, then lets the application send submitted data to any backend or database the team already operates.

The concrete problem it solves is the repetitive, brittle work of building and maintaining forms and surveys by hand in each front-end framework, and of depending on a hosted survey service to hold the form logic and the responses. SurveyJS Form Library replaces that hand-built form code and the hosted intermediate with a framework-independent form engine driven by JSON. It lives in the JavaScript and TypeScript ecosystem and publishes separate rendering packages for React, Angular, Vue 3, and plain JavaScript, so the same form definition can be rendered across differently built applications while the application keeps ownership of definitions, responses, and storage.

Key capabilities

• Renders forms and surveys from a SurveyJS JSON form definition, where form content and structure, validation, conditional logic, navigation, and appearance are all declared in JSON.
• Ships framework-specific rendering packages — survey-react-ui, survey-angular-ui, survey-vue3-ui, and survey-js-ui — that render the shared survey-core model.
• Separates form logic from rendering: survey-core carries the form model, validation, conditional logic, calculations, navigation, and localization, and installing a rendering package brings survey-core with it.
• Supports multi-step forms, quizzes, scored surveys, calculator forms, and survey pop-ups.
• Handles conditional visibility, branching, calculated values, and expression-based logic.
• Provides input validation, partial submissions, auto-save, and lazy loading.
• Supports dynamic panels, repeating question groups, carry-forward responses, text piping, and multiple navigation modes for long and complex forms.

Who uses it and how

• Teams embedding forms directly in a React, Angular, or Vue 3 application, where a rendering package is installed and the form is rendered from a JSON definition loaded or created in the app.
• Plain JavaScript and jQuery pages that need data-entry forms without adopting a component framework, using survey-js-ui.
• Product and research teams building multi-step forms, quizzes, scored surveys, calculator forms, and pop-up surveys from one shared JSON definition.
• Organisations that collect responses in the browser and send the submitted data to their own backend, storing it in the database or service of their choice, with no SurveyJS backend required.
• Teams that author definitions visually with the embeddable drag-and-drop SurveyJS Creator form builder, generate them with AI, or write them manually.

Getting started

Install the package for the target framework: npm install survey-react-ui, npm install survey-angular-ui, npm install survey-vue3-ui, or npm install survey-js-ui. Each framework also has a setup guide, and the library requires no SurveyJS backend.

How it compares

The facts provided name no paid products that this project replaces, and they name no directly comparable open-source form libraries. On the record available, SurveyJS Form Library stands alone in this registry: an MIT-licensed, self-hosted form rendering engine rather than a hosted survey product.

When to use it — and when not to

A self-hoster must supply the application that renders the form and the backend and database that receive and store submitted responses, because the library collects data in the browser and has no SurveyJS backend of its own. Teams that want a fully managed service holding the responses, or that expect the library to provide storage and reporting out of the box, should not pick it. The open issue count of 470 is high for a project of this size, and the README is thin on deployment and operational guidance, so teams should weigh issue backlog and support expectations before adopting it for critical data-entry flows.

npm install survey-react-ui

npm install survey-angular-ui

npm install survey-vue3-ui

npm install survey-js-ui