Responsive Website Builder
Build a responsive website in minutes for free with AI. Write in plain English or tap buttons to create your website.
How to Use the Responsive Website Builder
Responsive Website Builder Example
Built with Replit.
Build your vision in minutes for free without writing a single line of code.
Prompting the Responsive Website Builder
Build a fluid, responsive site using a percentage-based grid for columns, flexible media (max-width: 100% with intrinsic aspect ratios), fluid typography sized with viewport units, and viewport spacing with relative units (vw, em) for proportional white space.
Create an adaptive website that uses server-side detection (user-agent/RESS) to select distinct breakpoint layouts (320, 768, 1024) with pixel-precise templates, loads device-specific assets (images, fonts, scripts) per breakpoint for performance and fidelity, and renders component variants tuned to each device context and content density.
Build a fluid-responsive site with a fluid grid that scales smoothly between defined breakpoints, responsive images using srcset and sizes, clamp() typography that scales within sensible min/max bounds, and adaptive shifts where components reflow fluidly then refine with targeted breakpoint rules to avoid layout thrash and stay polished across widths.
Build a responsive site using mobile-first CSS with min-width enhancements, touch-optimized controls and gestures, progressive enhancement for core-to-advanced features, and fully accessible navigation (keyboard, screen reader, reduced-motion) that adapts to screen size.
Top Responsive Website Features by Type
Percentage Grid
Layout columns use percentage widths to scale smoothly with any viewport. This ensures consistent proportions and eliminates awkward jumps between sizes.
Flexible Media
Images and videos scale via max-width
Fluid Typography
Text scales with viewport units to maintain readable rhythm across devices. It avoids abrupt size changes while preserving hierarchy.
Viewport Spacing
Margins and paddings use relative units like vw and em for proportional white space. This maintains balance and flow as the layout expands or contracts.
Breakpoint Layouts
Distinct templates are served for specific width ranges (e.g., 320, 768, 1024). This allows pixel-precise control for each device class.
Device Assets
Images, fonts, and scripts are tailored per breakpoint or device profile. It improves performance and visual fidelity on each target.
Server Detection
User-agent or RESS strategies select the best layout on the server. This reduces client work and speeds up first render on constrained devices.
Component Variants
Key widgets have breakpoint-specific versions tuned for context. This ensures usability by adapting controls and content density per device.
Fluid + Breakpoints
A fluid grid scales continuously between defined breakpoints. It blends smooth resizing with strategic snap points for control where needed.
Responsive Images
Srcset and sizes deliver right-sized images as the layout fluidly changes. This preserves clarity while minimizing bandwidth across widths.
Clamp Typography
Font sizes use clamp() to fluidly scale within sensible min/max bounds. It prevents extremes while maintaining readable, proportionate text.
Adaptive Shifts
Components reflow fluidly, then refine at breakpoints with targeted rules. This avoids layout thrash and provides polish at key widths.
Mobile-First CSS
Base styles target small screens, with progressive enhancements via min-width queries. This ensures fast defaults and scales up gracefully.
Touch Controls
Interactive targets and gestures are optimized for fingers and pointers. It boosts usability across phones, tablets, and hybrids.
Progressive Enhancement
Core content works without advanced features, adding capabilities as supported. This improves resilience across browsers and networks.
Accessible Navigation
Keyboard, screen reader, and reduced-motion friendly menus adapt to screen size. It ensures everyone can navigate regardless of device or ability.
The Responsive Website of Your Dreams
Build your vision in minutes for free without writing a single line of code.
FAQ about the Responsive Website Builder
Can I build a responsive website entirely in my browser with no setup?
Yes. On Replit you build entirely in your browser with no installation, using live preview to iterate on responsive design. Start mobile-first, set the viewport meta tag, and implement breakpoints with media queries. Use modern layout primitives like CSS Grid and Flexbox, and the editor updates instantly as you save. When you’re ready, deploy in minutes from the same tab.
How do AI tools help me create and refine a responsive layout?
Replit Agent can generate your initial layout and components from a description, while Replit Assistant helps with code generation and autocomplete as you refine. Ask them to apply layout tweaks, component resizing, or a CSS refactor to align with your breakpoints. They also handle debugging by explaining errors and proposing fixes. Review diffs before applying changes to keep control.
Can I import a Figma design and make it responsive?
Yes—use Import from Figma to convert frames into React components, with layers, styles, and autolayout translated into code. After import, have Agent add responsive variants and adjust spacing to rem/em units for better scaling. You can keep styles in CSS or adopt CSS-in-JS if that fits your stack, and define style tokens for consistency. Assistant can then fine-tune breakpoints and behavior for mobile and desktop.
Is there a drag-and-drop builder for entire sites?
Replit is code-first rather than a full no-code drag-and-drop site builder. The Visual Editor offers lightweight WYSIWYG edits for text, styles, and images, but entire sites, component hierarchy, and state management are handled in code. This makes it a low-code experience for UI polish, not a no-code platform for complete app logic. Use AI to generate and modify code when you don’t want to hand-write everything.
How do I test my site on different screen sizes?
In the Replit workspace, resize the live preview while you iterate on responsive breakpoints. For precise checks, open your browser’s device preview/mobile emulator to simulate phones and tablets, then deploy and test on real devices. Run Lighthouse and cross-browser testing from your own browser to audit performance, accessibility, and SEO. Verify touch targets and accessibility with your browser devtools and fix issues with Assistant as you go.
How do I deploy and add a custom domain with HTTPS?
Use one-click deploy to publish to Replit’s cloud hosting in minutes. Add a custom domain in the Deploy settings and Replit provisions SSL/TLS for connection encryption automatically. Point your DNS records to the provided target and your responsive site goes live over HTTPS.
Can I add a backend, database, auth, or payments to my responsive site?
Yes—describe what you need and Agent will scaffold API integration and server code alongside your frontend. It can add Replit Database or PostgreSQL, wire up OAuth via Replit Auth or Google OAuth, and integrate Stripe for payments and SendGrid for email. Store secrets and environment variables in the built-in Secrets manager. You can refine endpoints and schema with Assistant as you iterate.
What if AI changes break my layout—can I roll back safely?
Every Agent or Assistant change creates an automatic checkpoint snapshot you can compare with diffs before applying. If AI edits break your layout, use rollback to restore any prior checkpoint—code, configuration, and data included. This works alongside version control so you can undo experiments confidently. Safe experimentation is the default.