# Before After Comparison

> A split panel that shows a project before and after your work with a draggable divider. Proves your impact visually when results speak louder than text.

A shadcn/ui block from the [@shadcn-ui-blocks](https://www.shadcn-ui-blocks.com) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/shadcn-ui-blocks/portfolio-portfolio-why-work-with-me-before-after-comparison).

- Page, with a live preview: https://shadcn.exchange/r/shadcn-ui-blocks/portfolio-portfolio-why-work-with-me-before-after-comparison
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/shadcn-ui-blocks/portfolio-portfolio-why-work-with-me-before-after-comparison-light-e948908987f77952.png
- Registry item: https://www.shadcn-ui-blocks.com/r/portfolio-portfolio-why-work-with-me-before-after-comparison.json
- Listed: 2026-10-13, source last changed 2026-10-13

## Install

```bash
npx shadcn@latest add https://www.shadcn-ui-blocks.com/r/portfolio-portfolio-why-work-with-me-before-after-comparison.json
```

Run it in a project that has shadcn/ui set up. It adds the files below and installs what they depend on.

## Dependencies

- npm packages: `class-variance-authority`, `embla-carousel-react`, `lucide-react`, `radix-ui`

## Files

### `components/blocks/portfolio/portfolio-why-work-with-me/before-after-comparison.tsx`

```tsx
import { useState } from 'react';
import { ArrowRight } from 'lucide-react';
import { Button } from '@/components/ui/button';
import { Badge } from '@/components/ui/badge';
import {
  Carousel,
  CarouselContent,
  CarouselItem,
  CarouselNext,
  CarouselPrevious,
} from '@/components/ui/carousel';

// Sample project data
const projects = [
  {
    id: 1,
    title: 'E-commerce Website Redesign',
    description:
      'Transformed an outdated online store into a modern, user-friendly shopping experience with improved navigation and mobile responsiveness.',
    before: {
      image:
        'https://images.unsplash.com/photo-1523800503107-5bc3ba2a6f81?q=80&w=2080&auto=format&fit=crop',
      caption: 'Cluttered layout with poor mobile experience',
    },
    after: {
      image:
        'https://images.unsplash.com/photo-1621768216002-5ac171876625?q=80&w=2069&auto=format&fit=crop',
      caption: 'Clean, responsive design with intuitive navigation',
    },
    impact:
      'Conversion rate increased by 45% and mobile bounce rate decreased by 30%',
  },
  {
    id: 2,
    title: 'Brand Identity Refresh',
    description:
      'Revitalized a dated brand identity with modern typography, color palette, and visual elements while maintaining brand recognition.',
    before: {
      image:
        'https://images.unsplash.com/photo-1517048676732-d65bc937f952?q=80&w=2070&auto=format&fit=crop',
      caption: 'Dated brand identity lacking consistency',
    },
    after: {
      image:
        'https://images.unsplash.com/photo-1611926653458-09294b3142bf?q=80&w=2070&auto=format&fit=crop',
      caption: 'Cohesive, modern identity system with consistent elements',
    },
    impact: 'Brand recognition improved by 60% in customer surveys',
  },
  {
    id: 3,
    title: 'App User Experience Optimization',
    description:
      'Redesigned a complex workflow to reduce friction and improve task completion rates for a mobile application.',
    before: {
      image:
        'https://images.unsplash.com/photo-1566241440091-ec10de8db2e1?q=80&w=2076&auto=format&fit=crop',
      caption: 'Complex workflow requiring numerous steps',
    },
    after: {
      image:
        'https://images.unsplash.com/photo-1616763355548-1b606f439f86?q=80&w=2070&auto=format&fit=crop',
      caption: 'Streamlined interface with intuitive interactions',
    },
    impact:
      'Task completion time reduced by 40% and user satisfaction increased by 65%',
  },
];

export default function BeforeAfterComparison() {
  const [activeProject, setActiveProject] = useState(0);

  return (
    <section className="bg-background py-16 md:py-24">
      <div className="container mx-auto px-4 2xl:max-w-[1400px]">
        {/* Section header */}
        <div className="mb-12 text-center md:mb-16">
          <Badge className="mb-4" variant="outline">
            Transformations
          </Badge>
          <h2 className="text-3xl font-bold tracking-tight sm:text-4xl md:text-5xl">
            The Impact of My Work
          </h2>
          <p className="text-muted-foreground mx-auto mt-4 max-w-2xl text-lg">
            See the difference my expertise can make through these before and
            after project showcases
          </p>
        </div>

        <div className="mx-auto max-w-5xl">
          {/* Before/After Carousel */}
          <Carousel
            className="w-full"
            opts={{
              loop: true,
            }}
            setApi={(api) => {
              api?.on('select', () => {
                setActiveProject(api.selectedScrollSnap());
              });
            }}
          >
            <CarouselContent>
              {projects.map((project) => (
                <CarouselItem key={project.id}>
                  <div className="p-1">
                    <div className="bg-card overflow-hidden rounded-xl border">
                      <div className="flex flex-col md:flex-row">
                        {/* Before */}
                        <div className="relative md:w-1/2">
                          <div className="absolute top-2 left-2 z-10">
                            <Badge variant="secondary">Before</Badge>
                          </div>
                          <div className="relative aspect-video">
                            <img
                              src={project.before.image}
                              alt={`${project.title} before`}
                              className="object-cover"
                            />
                          </div>
                          <div className="border-primary/10 bg-muted/50 p-2 text-center text-xs">
                            {project.before.caption}
                          </div>
                        </div>

                        {/* After */}
                        <div className="relative md:w-1/2">
                          <div className="absolute top-2 left-2 z-10">
                            <Badge>After</Badge>
                          </div>
                          <div className="relative aspect-video">
                            <img
                              src={project.after.image}
                              alt={`${project.title} after`}
                              className="object-cover"
                            />
                          </div>
                          <div className="border-primary/10 bg-muted/50 p-2 text-center text-xs">
                            {project.after.caption}
                          </div>
                        </div>
                      </div>

                      {/* Project Info */}
                      <div className="p-6">
                        <h3 className="mb-2 text-2xl font-semibold">
                          {project.title}
                        </h3>
                        <p className="text-muted-foreground mb-4">
                          {project.description}
                        </p>
                        <div className="bg-primary/10 mb-4 rounded-lg p-3">
                          <h4 className="mb-1 font-medium">
                            Measurable Impact:
                          </h4>
                          <p className="text-sm">{project.impact}</p>
                        </div>
                      </div>
                    </div>
                  </div>
                </CarouselItem>
              ))}
            </CarouselContent>
            <div className="mt-6 flex items-center justify-center gap-2">
              <CarouselPrevious className="relative inset-0 translate-y-0" />
              {projects.map((_, i) => (
                <Button
                  key={i}
                  variant={activeProject === i ? 'default' : 'outline'}
                  size="icon"
                  className="h-8 w-8 rounded-full"
                  onClick={() => setActiveProject(i)}
                >
                  {i + 1}
                </Button>
              ))}
              <CarouselNext className="relative inset-0 translate-y-0" />
            </div>
          </Carousel>

          <div className="mt-12 text-center">
            <Button size="lg" asChild>
              <a href="#" className="inline-flex items-center gap-2">
                <span>View all projects</span>
                <ArrowRight className="h-4 w-4" />
              </a>
            </Button>
          </div>
        </div>
      </div>
    </section>
  );
}
```

### `components/ui/button.tsx`

```tsx
import * as React from "react"
import { cva, type VariantProps } from "class-variance-authority"
import { Slot } from "radix-ui"

import { cn } from "@/lib/utils"

const buttonVariants = cva(
  "group/button inline-flex shrink-0 items-center justify-center rounded-md border border-transparent bg-clip-padding text-sm font-medium whitespace-nowrap transition-all outline-none select-none focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 active:not-aria-[haspopup]:translate-y-px disabled:pointer-events-none disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
  {
    variants: {
      variant: {
        default: "bg-primary text-primary-foreground hover:bg-primary/80",
        outline:
          "border-border bg-background shadow-xs hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:border-input dark:bg-input/30 dark:hover:bg-input/50",
        secondary:
          "bg-secondary text-secondary-foreground hover:bg-secondary/80 aria-expanded:bg-secondary aria-expanded:text-secondary-foreground",
        ghost:
          "hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:hover:bg-muted/50",
        destructive:
          "bg-destructive/10 text-destructive hover:bg-destructive/20 focus-visible:border-destructive/40 focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:hover:bg-destructive/30 dark:focus-visible:ring-destructive/40",
        link: "text-primary underline-offset-4 hover:underline",
      },
      size: {
        default:
          "h-9 gap-1.5 px-2.5 in-data-[slot=button-group]:rounded-md has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
        xs: "h-6 gap-1 rounded-[min(var(--radius-md),8px)] px-2 text-xs in-data-[slot=button-group]:rounded-md has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3",
        sm: "h-8 gap-1 rounded-[min(var(--radius-md),10px)] px-2.5 in-data-[slot=button-group]:rounded-md has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5",
        lg: "h-10 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
        icon: "size-9",
        "icon-xs":
          "size-6 rounded-[min(var(--radius-md),8px)] in-data-[slot=button-group]:rounded-md [&_svg:not([class*='size-'])]:size-3",
        "icon-sm":
          "size-8 rounded-[min(var(--radius-md),10px)] in-data-[slot=button-group]:rounded-md",
        "icon-lg": "size-10",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
)

function Button({
  className,
  variant = "default",
  size = "default",
  asChild = false,
  ...props
}: React.ComponentProps<"button"> &
  VariantProps<typeof buttonVariants> & {
    asChild?: boolean
  }) {
  const Comp = asChild ? Slot.Root : "button"

  return (
    <Comp
      data-slot="button"
      data-variant={variant}
      data-size={size}
      className={cn(buttonVariants({ variant, size, className }))}
      {...props}
    />
  )
}

export { Button, buttonVariants }
```

### `components/ui/badge.tsx`

```tsx
import * as React from "react"
import { cva, type VariantProps } from "class-variance-authority"
import { Slot } from "radix-ui"

import { cn } from "@/lib/utils"

const badgeVariants = cva(
  "group/badge inline-flex h-5 w-fit shrink-0 items-center justify-center gap-1 overflow-hidden rounded-4xl border border-transparent px-2 py-0.5 text-xs font-medium whitespace-nowrap transition-all focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 aria-invalid:border-destructive aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 [&>svg]:pointer-events-none [&>svg]:size-3!",
  {
    variants: {
      variant: {
        default: "bg-primary text-primary-foreground [a]:hover:bg-primary/80",
        secondary:
          "bg-secondary text-secondary-foreground [a]:hover:bg-secondary/80",
        destructive:
          "bg-destructive/10 text-destructive focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:focus-visible:ring-destructive/40 [a]:hover:bg-destructive/20",
        outline:
          "border-border text-foreground [a]:hover:bg-muted [a]:hover:text-muted-foreground",
        ghost:
          "hover:bg-muted hover:text-muted-foreground dark:hover:bg-muted/50",
        link: "text-primary underline-offset-4 hover:underline",
      },
    },
    defaultVariants: {
      variant: "default",
    },
  }
)

function Badge({
  className,
  variant = "default",
  asChild = false,
  ...props
}: React.ComponentProps<"span"> &
  VariantProps<typeof badgeVariants> & { asChild?: boolean }) {
  const Comp = asChild ? Slot.Root : "span"

  return (
    <Comp
      data-slot="badge"
      data-variant={variant}
      className={cn(badgeVariants({ variant }), className)}
      {...props}
    />
  )
}

export { Badge, badgeVariants }
```

### `components/ui/carousel.tsx`

```tsx
"use client"

import * as React from "react"
import useEmblaCarousel, {
  type UseEmblaCarouselType,
} from "embla-carousel-react"

import { cn } from "@/lib/utils"
import { Button } from "@/components/ui/button"
import { ChevronLeftIcon, ChevronRightIcon } from "lucide-react"

type CarouselApi = UseEmblaCarouselType[1]
type UseCarouselParameters = Parameters<typeof useEmblaCarousel>
type CarouselOptions = UseCarouselParameters[0]
type CarouselPlugin = UseCarouselParameters[1]

type CarouselProps = {
  opts?: CarouselOptions
  plugins?: CarouselPlugin
  orientation?: "horizontal" | "vertical"
  setApi?: (api: CarouselApi) => void
}

type CarouselContextProps = {
  carouselRef: ReturnType<typeof useEmblaCarousel>[0]
  api: ReturnType<typeof useEmblaCarousel>[1]
  scrollPrev: () => void
  scrollNext: () => void
  canScrollPrev: boolean
  canScrollNext: boolean
} & CarouselProps

const CarouselContext = React.createContext<CarouselContextProps | null>(null)

function useCarousel() {
  const context = React.useContext(CarouselContext)

  if (!context) {
    throw new Error("useCarousel must be used within a <Carousel />")
  }

  return context
}

function Carousel({
  orientation = "horizontal",
  opts,
  setApi,
  plugins,
  className,
  children,
  ...props
}: React.ComponentProps<"div"> & CarouselProps) {
  const [carouselRef, api] = useEmblaCarousel(
    {
      ...opts,
      axis: orientation === "horizontal" ? "x" : "y",
    },
    plugins
  )
  const [canScrollPrev, setCanScrollPrev] = React.useState(false)
  const [canScrollNext, setCanScrollNext] = React.useState(false)

  const onSelect = React.useCallback((api: CarouselApi) => {
    if (!api) return
    setCanScrollPrev(api.canScrollPrev())
    setCanScrollNext(api.canScrollNext())
  }, [])

  const scrollPrev = React.useCallback(() => {
    api?.scrollPrev()
  }, [api])

  const scrollNext = React.useCallback(() => {
    api?.scrollNext()
  }, [api])

  const handleKeyDown = React.useCallback(
    (event: React.KeyboardEvent<HTMLDivElement>) => {
      if (event.key === "ArrowLeft") {
        event.preventDefault()
        scrollPrev()
      } else if (event.key === "ArrowRight") {
        event.preventDefault()
        scrollNext()
      }
    },
    [scrollPrev, scrollNext]
  )

  React.useEffect(() => {
    if (!api || !setApi) return
    setApi(api)
  }, [api, setApi])

  React.useEffect(() => {
    if (!api) return
    onSelect(api)
    api.on("reInit", onSelect)
    api.on("select", onSelect)

    return () => {
      api?.off("select", onSelect)
    }
  }, [api, onSelect])

  return (
    <CarouselContext.Provider
      value={{
        carouselRef,
        api: api,
        opts,
        orientation:
          orientation || (opts?.axis === "y" ? "vertical" : "horizontal"),
        scrollPrev,
        scrollNext,
        canScrollPrev,
        canScrollNext,
      }}
    >
      <div
        onKeyDownCapture={handleKeyDown}
        className={cn("relative", className)}
        role="region"
        aria-roledescription="carousel"
        data-slot="carousel"
        {...props}
      >
        {children}
      </div>
    </CarouselContext.Provider>
  )
}

function CarouselContent({ className, ...props }: React.ComponentProps<"div">) {
  const { carouselRef, orientation } = useCarousel()

  return (
    <div
      ref={carouselRef}
      className="overflow-hidden"
      data-slot="carousel-content"
    >
      <div
        className={cn(
          "flex",
          orientation === "horizontal" ? "-ml-4" : "-mt-4 flex-col",
          className
        )}
        {...props}
      />
    </div>
  )
}

function CarouselItem({ className, ...props }: React.ComponentProps<"div">) {
  const { orientation } = useCarousel()

  return (
    <div
      role="group"
      aria-roledescription="slide"
      data-slot="carousel-item"
      className={cn(
        "min-w-0 shrink-0 grow-0 basis-full",
        orientation === "horizontal" ? "pl-4" : "pt-4",
        className
      )}
      {...props}
    />
  )
}

function CarouselPrevious({
  className,
  variant = "outline",
  size = "icon-sm",
  ...props
}: React.ComponentProps<typeof Button>) {
  const { orientation, scrollPrev, canScrollPrev } = useCarousel()

  return (
    <Button
      data-slot="carousel-previous"
      variant={variant}
      size={size}
      className={cn(
        "absolute touch-manipulation rounded-full",
        orientation === "horizontal"
          ? "top-1/2 -left-12 -translate-y-1/2"
          : "-top-12 left-1/2 -translate-x-1/2 rotate-90",
        className
      )}
      disabled={!canScrollPrev}
      onClick={scrollPrev}
      {...props}
    >
      <ChevronLeftIcon />
      <span className="sr-only">Previous slide</span>
    </Button>
  )
}

function CarouselNext({
  className,
  variant = "outline",
  size = "icon-sm",
  ...props
}: React.ComponentProps<typeof Button>) {
  const { orientation, scrollNext, canScrollNext } = useCarousel()

  return (
    <Button
      data-slot="carousel-next"
      variant={variant}
      size={size}
      className={cn(
        "absolute touch-manipulation rounded-full",
        orientation === "horizontal"
          ? "top-1/2 -right-12 -translate-y-1/2"
          : "-bottom-12 left-1/2 -translate-x-1/2 rotate-90",
        className
      )}
      disabled={!canScrollNext}
      onClick={scrollNext}
      {...props}
    >
      <ChevronRightIcon />
      <span className="sr-only">Next slide</span>
    </Button>
  )
}

export {
  type CarouselApi,
  Carousel,
  CarouselContent,
  CarouselItem,
  CarouselPrevious,
  CarouselNext,
  useCarousel,
}
```