formio/formio.js

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2087 stars · 1112 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A plain JavaScript library that renders JSON schema-based web forms and includes a full drag-and-drop JSON form builder. It also serves as an SDK for communicating with the Form.io APIs.

Use cases

• render JSON schema forms in a web app
• embed a drag-and-drop form builder in my application
• build dynamic multi-step forms without a framework
• connect forms to a Form.io backend API
• create forms with nested components, date pickers, and input masks
• use the same form schema across React, Angular, and Vue apps

When to choose

• you need schema-driven forms rendered in vanilla JavaScript without framework dependencies
• you use the Form.io platform and need a client SDK
• you want an embeddable form builder that outputs portable JSON form definitions

When to avoid

• you need a fully self-hosted form backend with no Form.io service dependency
• you want a lightweight single-input form where a schema engine is overkill
• you need deep native integration with one framework's state management

Facets

library · maturity active

form-handling ui-components sdk http-client web-development frontend apis browser cross-platform form-builder -forms vanilla-js form-renderer formio nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="formio/formio.js")