Forms.md
Developer-first JavaScript library for multi-step forms and surveys
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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.
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