Forms.md

Forms.md is a developer-first, open source JavaScript library for building multi-step, Typeform-style forms and surveys with minimal code. Forms can be created programmatically or from a template-like syntax, and embedded directly into existing web apps.

Key Features

• Multi-step “slide” forms with optional progress indicators
• Conditional logic for showing, skipping, or jumping between slides
• Partial (step-level) submissions to persist data during completion
• Rich input types (including opinion scales/NPS-style, ratings, date-time, file, and more)
• Client-side rendering without iframes, with a privacy-focused approach
• Theming and customization (colors, typography, layout)
• Localization support for multi-language forms
• Optional integrations such as Google Sheets and spam protection (reCAPTCHA)

Use Cases

• User onboarding flows with branching questions
• Customer surveys and feedback collection embedded in product pages
• Lead capture and data collection forms for internal tools or marketing sites

Limitations and Considerations

• Forms.md provides the form UI and client-side logic; you must provide and secure the server endpoint that receives submissions

Forms.md is a good fit for teams that want a code-driven, embeddable form experience with conditional logic and strong customization. It works well as a lightweight alternative to hosted form builders when you want full control over UX and data handling.