Top Scroll Indicator Solutions in JavaScript for 2025

20. June 2025

.SHARE

Native CSS Solutions (2025)

1. CSS scroll-timeline & view-timeline NEW

Description: Native browser implementation for scroll-driven animations
Mini Preview: No
Browser Support: Modern browsers (Chrome 115+, Firefox 110+)
Source: MDN Web Docs


.progress-bar {
  animation: progress-animation auto linear;
  animation-timeline: scroll(root);
}

@keyframes progress-animation {
  0% { width: 0%; }
  100% { width: 100%; }
}

.progress-bar {

animation: progress-animation auto linear;

animation-timeline: scroll(root);

}

@keyframes progress-animation {

0% { width: 0%; }

100% { width: 100%; }

}

Benefits:

No JavaScript required
Excellent performance
Native browser optimization
Future-proof solution

Traditional Progress Bars

2. Vanilla JavaScript Progress Bar

Description: Simple, lightweight scroll progress indicator
Mini Preview: No
Size: <1KB
Source: W3Schools


window.addEventListener('scroll', () => {
  const scrolled = (window.scrollY / (document.documentElement.scrollHeight - window.innerHeight)) * 100;
  document.getElementById('progress-bar').style.width = scrolled + '%';
});

window.addEventListener('scroll', () => {

const scrolled = (window.scrollY / (document.documentElement.scrollHeight - window.innerHeight)) * 100;

document.getElementById('progress-bar').style.width = scrolled + '%';

});


#progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: #4CAF50;
  z-index: 1000;
  transition: width 0.1s ease;
}

#progress-bar {

position: fixed;

top: 0;

left: 0;

height: 4px;

background: #4CAF50;

z-index: 1000;

transition: width 0.1s ease;

}

3. scrollProgress.js

Description: Lightweight library for scroll position tracking
Mini Preview: No
Size: 2KB
Source: CSS Script


import { ScrollProgress } from 'scrollprogress.js';

const progress = new ScrollProgress({
  target: '.progress-indicator',
  type: 'horizontal', // or 'circular'
  color: '#007bff'
});

import { ScrollProgress } from 'scrollprogress.js';

const progress = new ScrollProgress({

target: '.progress-indicator',

type: 'horizontal', // or 'circular'

color: '#007bff'

});

Advanced Animation Libraries

4. GSAP ScrollTrigger POPULAR

Description: Professional-grade scroll animations and progress tracking
Mini Preview: No (but can be customized)
Size: 35KB
Source: GSAP


gsap.registerPlugin(ScrollTrigger);

gsap.to(".progress-bar", {
  scaleX: 1,
  ease: "none",
  scrollTrigger: {
    trigger: "body",
    start: "top top",
    end: "bottom bottom",
    scrub: true
  }
});

gsap.registerPlugin(ScrollTrigger);

gsap.to(".progress-bar", {

scaleX: 1,

ease: "none",

scrollTrigger: {

trigger: "body",

start: "top top",

end: "bottom bottom",

scrub: true

}

});

5. Motion.page ScrollTrigger

Description: Alternative to GSAP with similar functionality
Mini Preview: No
Size: 25KB
Source: Motion.page


import { Motion } from 'motion.page';

Motion.timeline({
  scrollTrigger: {
    trigger: '.content',
    start: 'top center',
    end: 'bottom center',
    onUpdate: (progress) => {
      document.querySelector('.indicator').style.width = `${progress * 100}%`;
    }
  }
});

import { Motion } from 'motion.page';

Motion.timeline({

scrollTrigger: {

trigger: '.content',

start: 'top center',

end: 'bottom center',

onUpdate: (progress) => {

document.querySelector('.indicator').style.width = `${progress * 100}%`;

}

});

Minimap & Preview Solutions WITH PREVIEW

6. React Simple Minimap MINI PREVIEW

Description: VS Code-style minimap for React applications
Mini Preview: YES – Shows page thumbnail
Size: 15KB
Source: GitHub


import { Minimap } from 'react-simple-minimap';

function App() {
  return (
    <div>
      <Minimap 
        className="minimap"
        selector=".content"
        width={200}
        height={400}
      />
      <div className="content">
        {/* Your content */}
      </div>
    </div>
  );
}

import { Minimap } from 'react-simple-minimap';

function App() {

return (

<div>

<Minimap

className="minimap"

selector=".content"

width={200}

height={400}

{/* Your content */}

</div>

);

}

7. React Flow MiniMap MINI PREVIEW

Description: Interactive minimap component with viewport indicator
Mini Preview: YES – Shows flow overview
Size: 45KB (with React Flow)
Source: React Flow


import { ReactFlow, MiniMap } from 'reactflow';

function FlowWithMinimap() {
  return (
    <ReactFlow>
      <MiniMap 
        nodeColor="#ff6b6b"
        maskColor="#f0f0f0"
        style={{ height: 120, width: 200 }}
      />
    </ReactFlow>
  );
}

import { ReactFlow, MiniMap } from 'reactflow';

function FlowWithMinimap() {

return (

<MiniMap

nodeColor="#ff6b6b"

maskColor="#f0f0f0"

style={{ height: 120, width: 200 }}

</ReactFlow>

);

}

8. Pagemap.js MINI PREVIEW

Description: Sublime Text-style minimap using HTML5 Canvas
Mini Preview: YES – Visual page structure representation
Size: 8KB
GitHub Stars: 1.3k
Source: GitHub


<canvas id='map'></canvas>


#map {
  position: fixed;
  top: 0;
  right: 0;
  width: 200px;
  height: 100%;
  z-index: 100;
}

#map {

position: fixed;

top: 0;

right: 0;

width: 200px;

height: 100%;

z-index: 100;

}


import pagemap from 'pagemap';

pagemap(document.querySelector('#map'), {
  viewport: null,
  styles: {
    'header,footer,section,article': 'rgba(0,0,0,0.08)',
    'h1,a': 'rgba(0,0,0,0.10)',
    'h2,h3,h4': 'rgba(0,0,0,0.08)'
  },
  back: 'rgba(0,0,0,0.02)',
  view: 'rgba(0,0,0,0.05)',
  drag: 'rgba(0,0,0,0.10)',
  interval: null
});

import pagemap from 'pagemap';

pagemap(document.querySelector('#map'), {

viewport: null,

styles: {

'header,footer,section,article': 'rgba(0,0,0,0.08)',

'h1,a': 'rgba(0,0,0,0.10)',

'h2,h3,h4': 'rgba(0,0,0,0.08)'

back: 'rgba(0,0,0,0.02)',

view: 'rgba(0,0,0,0.05)',

drag: 'rgba(0,0,0,0.10)',

interval: null

});

Features:

Clickable navigation
Drag viewport indicator
Custom element styling
Real-time updates
Lightweight implementation

9. Custom Minimap with Canvas MINI PREVIEW

Description: Custom implementation using HTML5 Canvas
Mini Preview: YES – Custom thumbnail generation
Size: Variable
Source: Ben Knight Blog


class DocumentMinimap {
  constructor(options) {
    this.canvas = options.canvas;
    this.target = options.target;
    this.init();
  }

  init() {
    this.generateThumbnail();
    this.addScrollListener();
  }

  generateThumbnail() {
    const ctx = this.canvas.getContext('2d');
    // Convert DOM to canvas representation
    html2canvas(this.target).then(canvas => {
      ctx.drawImage(canvas, 0, 0, this.canvas.width, this.canvas.height);
    });
  }

  addScrollListener() {
    window.addEventListener('scroll', () => {
      this.updateViewport();
    });
  }
}

class DocumentMinimap {

constructor(options) {

this.canvas = options.canvas;

this.target = options.target;

this.init();

}

init() {

this.generateThumbnail();

this.addScrollListener();

}

generateThumbnail() {

const ctx = this.canvas.getContext('2d');

// Convert DOM to canvas representation

html2canvas(this.target).then(canvas => {

ctx.drawImage(canvas, 0, 0, this.canvas.width, this.canvas.height);

});

}

addScrollListener() {

window.addEventListener('scroll', () => {

this.updateViewport();

});

}

Navigation-Based Indicators

10. Intersection Observer ScrollSpy MODERN

Description: Performance-optimized section highlighting
Mini Preview: No
Size: 3KB
Source: Web Dev Simplified


const observer = new IntersectionObserver((entries) => {
  entries.forEach(entry => {
    const id = entry.target.getAttribute('id');
    const navLink = document.querySelector(`nav a[href="#${id}"]`);
    
    if (entry.isIntersecting) {
      navLink.classList.add('active');
    } else {
      navLink.classList.remove('active');
    }
  });
}, {
  threshold: 0.5
});

document.querySelectorAll('section').forEach(section => {
  observer.observe(section);
});

const observer = new IntersectionObserver((entries) => {

entries.forEach(entry => {

const id = entry.target.getAttribute('id');

const navLink = document.querySelector(`nav a[href="#${id}"]`);

if (entry.isIntersecting) {

navLink.classList.add('active');

} else {

navLink.classList.remove('active');

}

});

}, {

threshold: 0.5

});

document.querySelectorAll('section').forEach(section => {

observer.observe(section);

});

11. scrollspy.js

Description: Lightweight scrollspy with smooth scrolling
Mini Preview: No
Size: 4KB
Source: CSS Script


import { ScrollSpy } from 'scrollspy.js';

const spy = new ScrollSpy({
  nav: '.navigation',
  smooth: true,
  offset: 100
});

import { ScrollSpy } from 'scrollspy.js';

const spy = new ScrollSpy({

nav: '.navigation',

smooth: true,

offset: 100

});

Custom Scrollbar Solutions

12. Smooth Scrollbar POPULAR

Description: Fully customizable scrollbar replacement
Mini Preview: Can be extended
Size: 45KB
Source: Smooth Scrollbar


import Scrollbar from 'smooth-scrollbar';

const scrollbar = Scrollbar.init(document.querySelector('.container'), {
  plugins: {
    overscroll: true
  }
});

// Add progress indicator
scrollbar.addListener((status) => {
  const progress = status.offset.y / status.limit.y;
  updateProgressBar(progress);
});

import Scrollbar from 'smooth-scrollbar';

const scrollbar = Scrollbar.init(document.querySelector('.container'), {

plugins: {

overscroll: true

}

});

// Add progress indicator

scrollbar.addListener((status) => {

const progress = status.offset.y / status.limit.y;

updateProgressBar(progress);

});

13. SimpleBar

Description: Custom scrollbars for web and mobile
Mini Preview: No
Size: 25KB
Source: SimpleBar


import SimpleBar from 'simplebar';

new SimpleBar(document.getElementById('myElement'), {
  autoHide: false,
  scrollbarMaxSize: 50
});

import SimpleBar from 'simplebar';

new SimpleBar(document.getElementById('myElement'), {

autoHide: false,

scrollbarMaxSize: 50

});

Reading Progress Indicators

14. Reading Progress Circle VISUAL

Description: Circular progress indicator for articles
Mini Preview: No
Size: 2KB
Source: jQuery Script


function updateReadingProgress() {
  const article = document.querySelector('article');
  const scrolled = window.scrollY;
  const totalHeight = article.offsetHeight - window.innerHeight;
  const progress = (scrolled / totalHeight) * 100;
  
  const circle = document.querySelector('.progress-circle');
  const circumference = 2 * Math.PI * 50; // radius = 50
  const offset = circumference - (progress / 100) * circumference;
  
  circle.style.strokeDashoffset = offset;
}

window.addEventListener('scroll', updateReadingProgress);

function updateReadingProgress() {

const article = document.querySelector('article');

const scrolled = window.scrollY;

const totalHeight = article.offsetHeight - window.innerHeight;

const progress = (scrolled / totalHeight) * 100;

const circle = document.querySelector('.progress-circle');

const circumference = 2 * Math.PI * 50; // radius = 50

const offset = circumference - (progress / 100) * circumference;

circle.style.strokeDashoffset = offset;

}

window.addEventListener('scroll', updateReadingProgress);


.progress-circle {
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  transition: stroke-dashoffset 0.1s ease;
}

.progress-circle {

stroke-dasharray: 314;

stroke-dashoffset: 314;

transition: stroke-dashoffset 0.1s ease;

}

15. Multi-Section Progress

Description: Progress tracking across multiple content sections
Mini Preview: Shows section previews
Size: 8KB
Source: Custom implementation


class MultiSectionProgress {
  constructor(sections) {
    this.sections = Array.from(sections);
    this.init();
  }

  init() {
    this.createIndicators();
    this.bindEvents();
  }

  createIndicators() {
    this.sections.forEach((section, index) => {
      const indicator = document.createElement('div');
      indicator.className = 'section-indicator';
      indicator.dataset.section = index;
      
      // Add mini preview
      const preview = this.generatePreview(section);
      indicator.appendChild(preview);
      
      document.querySelector('.progress-container').appendChild(indicator);
    });
  }

  generatePreview(section) {
    const preview = document.createElement('div');
    preview.className = 'mini-preview';
    preview.innerHTML = section.querySelector('h2, h3')?.textContent || 'Section';
    return preview;
  }
}

class MultiSectionProgress {

constructor(sections) {

this.sections = Array.from(sections);

this.init();

}

init() {

this.createIndicators();

this.bindEvents();

}

createIndicators() {

this.sections.forEach((section, index) => {

const indicator = document.createElement('div');

indicator.className = 'section-indicator';

indicator.dataset.section = index;

// Add mini preview

const preview = this.generatePreview(section);

indicator.appendChild(preview);

document.querySelector('.progress-container').appendChild(indicator);

});

}

generatePreview(section) {

const preview = document.createElement('div');

preview.className = 'mini-preview';

preview.innerHTML = section.querySelector('h2, h3')?.textContent || 'Section';

return preview;

}

Performance Optimized Solutions

16. Throttled Scroll Progress

Description: Performance-optimized vanilla JS solution
Mini Preview: No
Size: 1KB
Source: Custom implementation


function throttle(func, delay) {
  let timeoutId;
  let lastExecTime = 0;
  
  return function (...args) {
    const currentTime = Date.now();
    
    if (currentTime - lastExecTime > delay) {
      func.apply(this, args);
      lastExecTime = currentTime;
    } else {
      clearTimeout(timeoutId);
      timeoutId = setTimeout(() => {
        func.apply(this, args);
        lastExecTime = Date.now();
      }, delay - (currentTime - lastExecTime));
    }
  };
}

const updateProgress = throttle(() => {
  const scrolled = window.pageYOffset;
  const maxHeight = document.documentElement.scrollHeight - window.innerHeight;
  const progress = (scrolled / maxHeight) * 100;
  
  document.getElementById('progress').style.width = `${progress}%`;
}, 16); // ~60fps

window.addEventListener('scroll', updateProgress, { passive: true });

function throttle(func, delay) {

let timeoutId;

let lastExecTime = 0;

return function (...args) {

const currentTime = Date.now();

if (currentTime - lastExecTime > delay) {

func.apply(this, args);

lastExecTime = currentTime;

} else {

clearTimeout(timeoutId);

timeoutId = setTimeout(() => {

func.apply(this, args);

lastExecTime = Date.now();

}, delay - (currentTime - lastExecTime));

}

};

}

const updateProgress = throttle(() => {

const scrolled = window.pageYOffset;

const maxHeight = document.documentElement.scrollHeight - window.innerHeight;

const progress = (scrolled / maxHeight) * 100;

document.getElementById('progress').style.width = `${progress}%`;

}, 16); // ~60fps

window.addEventListener('scroll', updateProgress, { passive: true });

Browser Compatibility & Recommendations

For 2025 Projects:

Best Overall: CSS scroll-timeline (for modern browsers) + GSAP ScrollTrigger (fallback)
Best with Preview: Pagemap.js, React Simple Minimap, or custom Canvas solution
Best Performance: Intersection Observer + throttled scroll events
Best Animation: GSAP ScrollTrigger
Most Lightweight: Vanilla JavaScript with throttling

Browser Support Matrix:

Solution	Chrome	Firefox	Safari	Edge	IE11
CSS scroll-timeline	115+	110+	17+	115+	No
Intersection Observer	51+	55+	12.1+	15+	No
GSAP ScrollTrigger	All	All	All	All	9+
Vanilla JS	All	All	All	All	9+

Performance Tips:

Use passive: true for scroll listeners
Implement throttling or debouncing for scroll events
Use transform instead of changing width/height for better performance
Consider using will-change: transform for animated elements
Use Intersection Observer for section-based indicators

Implementation Examples

Complete Vanilla JS Solution:


<!DOCTYPE html>
<html>
<head>
  <style>
    .progress-container {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: rgba(0,0,0,0.1);
      z-index: 1000;
    }
    
    .progress-bar {
      height: 100%;
      background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
      width: 0%;
      transition: width 0.1s ease;
    }
  </style>
</head>
<body>
  <div class="progress-container">
    <div class="progress-bar" id="progress"></div>
  </div>
  
  <script>
    function updateScrollProgress() {
      const scrolled = document.documentElement.scrollTop;
      const maxHeight = document.documentElement.scrollHeight - document.documentElement.clientHeight;
      const scrollPercent = (scrolled / maxHeight) * 100;
      
      document.getElementById('progress').style.width = scrollPercent + '%';
    }
    
    // Throttled scroll listener
    let ticking = false;
    function requestTick() {
      if (!ticking) {
        requestAnimationFrame(updateScrollProgress);
        ticking = true;
        setTimeout(() => { ticking = false; }, 16);
      }
    }
    
    window.addEventListener('scroll', requestTick, { passive: true });
  </script>
</body>
</html>

<!DOCTYPE html>

<html>

<head>

<style>

.progress-container {

position: fixed;

top: 0;

left: 0;

width: 100%;

height: 4px;

background: rgba(0,0,0,0.1);

z-index: 1000;

}

.progress-bar {

height: 100%;

background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);

width: 0%;

transition: width 0.1s ease;

}

</style>

</head>

<body>

</div>

function updateScrollProgress() {

const scrolled = document.documentElement.scrollTop;

const maxHeight = document.documentElement.scrollHeight - document.documentElement.clientHeight;

const scrollPercent = (scrolled / maxHeight) * 100;

document.getElementById('progress').style.width = scrollPercent + '%';

}

// Throttled scroll listener

let ticking = false;

function requestTick() {

if (!ticking) {

requestAnimationFrame(updateScrollProgress);

ticking = true;

setTimeout(() => { ticking = false; }, 16);

}

window.addEventListener('scroll', requestTick, { passive: true });

</script>

</body>

</html>

FAQ

What is a scroll mini map?

A scroll mini map is a visual navigation tool that provides a miniature overview of an entire document or webpage, similar to the minimap feature in code editors like VS Code. It shows your current position and allows quick navigation to any part of the content by clicking or dragging.

How do I implement a scroll mini map on my website?

You can implement a scroll mini map using JavaScript and HTML5 Canvas. Create a custom web component that listens to scroll events, renders page elements as scaled rectangles on canvas, and handles click/drag interactions for navigation.


export class Minimap extends HTMLElement {
  constructor() {
    super();
    this.canvas = document.createElement("canvas");
    this.styleElement = document.createElement("style");
  }
  
  set root(root) {
    this._root = root;
    const onScroll = () => this.redraw();
    document.addEventListener("scroll", onScroll);
  }
}

export class Minimap extends HTMLElement {

constructor() {

super();

this.canvas = document.createElement("canvas");

this.styleElement = document.createElement("style");

}

set root(root) {

this._root = root;

const onScroll = () => this.redraw();

document.addEventListener("scroll", onScroll);

}

Why is my scroll mini map not working properly?

Common issues include incorrect scaling calculations, event listener conflicts, and performance problems. Ensure you’re using the correct scroll coordinates, prevent infinite loops when updating scroll positions, and consider using requestAnimationFrame for smooth rendering. Check that your viewport calculations match the actual document dimensions.

How can I optimize scroll mini map performance?

Use throttling or debouncing for scroll events, limit the number of elements rendered on the minimap, implement viewport culling for large documents, and use efficient canvas rendering techniques. Consider only updating the minimap when scrolling stops or at specific intervals to reduce CPU usage.

Can I use CSS-only solutions for scroll mini maps?

Yes, you can use the CSS element() function (Firefox only) to create a minimap preview. However, this approach has limited browser support and functionality compared to JavaScript implementations. For better cross-browser compatibility, use JavaScript-based solutions.


#minimap {
  background: -moz-element(#content) no-repeat;
  background-size: 100% 100%;
  position: fixed;
  top: 0;
  right: 0;
  width: 200px;
  height: 100%;
}

#minimap {

background: -moz-element(#content) no-repeat;

background-size: 100% 100%;

position: fixed;

top: 0;

right: 0;

width: 200px;

height: 100%;

}

What are the best libraries for creating scroll mini maps?

Popular web libraries include pagemap.js for simple implementations, minimap-js for advanced features, and xivimap for lightweight solutions. For VS Code-like functionality in web applications, consider building custom solutions using HTML5 Canvas and JavaScript or exploring open-source implementations on GitHub.

How do I handle responsive design with scroll mini maps?

Use media queries to hide the minimap on smaller screens, adjust minimap dimensions based on viewport size, and recalculate scaling factors when the window resizes. Consider showing the minimap only on desktop devices where there’s sufficient screen real estate.

Why does my mini map jump or behave erratically?

Erratic behavior often occurs due to incorrect coordinate calculations, conflicting scroll event handlers, or issues with mouse tracking. Ensure you’re preventing default scroll behavior when dragging the minimap and using proper event delegation. Also check for conflicts with browser extensions or smooth scrolling features.

How do I customize the appearance of scroll mini map elements?

Define custom styles for different HTML elements using CSS variables or configuration objects. Map specific elements to colors or patterns on the minimap canvas.


const elementMap = {
  'h1': '--minimap-heading',
  'h2,h3,h4': '--minimap-subheading', 
  'p': '--minimap-text',
  'img': '--minimap-media'
};

const styles = {
  'h1,h2,h3': 'rgba(255,0,0,0.8)',
  'p': 'rgba(0,0,0,0.3)',
  'img': 'rgba(0,255,0,0.6)'
};

const elementMap = {

'h1': '--minimap-heading',

'h2,h3,h4': '--minimap-subheading',

'p': '--minimap-text',

'img': '--minimap-media'

};

const styles = {

'h1,h2,h3': 'rgba(255,0,0,0.8)',

'p': 'rgba(0,0,0,0.3)',

'img': 'rgba(0,255,0,0.6)'

};

Are scroll mini maps accessible?

Scroll mini maps should be implemented as progressive enhancement – keep the original scrollbars functional for accessibility. Add proper ARIA labels, keyboard navigation support, and ensure the minimap doesn’t interfere with screen readers. Consider providing options to disable the minimap for users who prefer traditional scrolling.

Can I use scroll mini maps with infinite scroll or dynamic content?

Yes, but you’ll need to update the minimap when new content loads. Use MutationObserver to detect DOM changes, recalculate document dimensions, and redraw the minimap. Consider implementing virtual scrolling techniques for very large datasets to maintain performance.

What’s the difference between scroll maps and heat maps?

Scroll maps track how far users scroll down a page and show engagement zones using color gradients, while mini maps are interactive navigation tools. Scroll maps are analytics tools for understanding user behavior, whereas mini maps are UX enhancements for improved navigation. Both can be combined for comprehensive user experience optimization.

How do I debug scroll mini map synchronization issues?

Use browser developer tools to monitor scroll events, check coordinate calculations in real-time, and verify that scale factors are correct. Add console logging for scroll positions and minimap coordinates. Ensure event handlers are properly attached and removed to prevent memory leaks or conflicting behaviors.

Let’s Talk!

Looking for a reliable partner to bring your project to the next level? Whether it’s development, design, security, or ongoing support—I’d love to chat and see how I can help.

Get in touch,
and let’s create something amazing together!

Web Scraping & Testing After PhantomJS: Modern Tools and Examples

Development / Automation / Build-Tools / Debugging / Deployment / Javascript

Hey there, fellow developer! Remember PhantomJS? That trusty headless browser that helped us scrape websites, run automated tests, and generate screenshots back in the day? Well, if you’re still using it or just discovered some legacy code that relies on it, I’ve got some news for you. PhantomJS officially threw in the towel back in […]

Day 33: Matomo – Leading Open-Source Web Analytics Platform – 7 Days of Docker

Development / Deployment / Docker / OffPage / OnPage / Search Engines / SEO

What is Matomo? Matomo (formerly known as Piwik) is a leading open-source web analytics platform that provides a privacy-focused alternative to Google Analytics. It gives you complete control over your data while offering comprehensive website analytics capabilities. Key Features: Docker Installation Options There are two main Docker approaches for installing Matomo: Prerequisites Before starting, ensure […]

Beige is the New Retro – Comprehensive C64 Hardware Replacements Guide 2025

Development / 8-bit / Hardware / Retro

Hey C64 enthusiasts and retro computing fans! – So your beloved Commodore 64 is showing its age? Maybe the SID chip has gone silent, the VIC-II is displaying funky colors, or that notorious PLA has finally given up the ghost? Don’t panic – and definitely don’t pay those crazy eBay prices for 40-year-old chips that […]

Alexander

I am a full-stack developer. My expertise include:

Server, Network and Hosting Environments
Data Modeling / Import / Export
Business Logic
API Layer / Action layer / MVC
User Interfaces
User Experience
Understand what the customer and the business needs

I have a deep passion for programming, design, and server architecture—each of these fuels my creativity, and I wouldn’t feel complete without them.

With a broad range of interests, I’m always exploring new technologies and expanding my knowledge wherever needed. The tech world evolves rapidly, and I love staying ahead by embracing the latest innovations.

Beyond technology, I value peace and surround myself with like-minded individuals.

I firmly believe in the principle: Help others, and help will find its way back to you when you need it.

Top Scroll Indicator Solutions in JavaScript for 2025

Table of Contents

Native CSS Solutions (2025)

1. CSS scroll-timeline & view-timeline NEW

Traditional Progress Bars

2. Vanilla JavaScript Progress Bar

3. scrollProgress.js

Advanced Animation Libraries

4. GSAP ScrollTrigger POPULAR

5. Motion.page ScrollTrigger

Minimap & Preview Solutions WITH PREVIEW

6. React Simple Minimap MINI PREVIEW

7. React Flow MiniMap MINI PREVIEW

8. Pagemap.js MINI PREVIEW

9. Custom Minimap with Canvas MINI PREVIEW

Navigation-Based Indicators

10. Intersection Observer ScrollSpy MODERN

11. scrollspy.js

Custom Scrollbar Solutions

12. Smooth Scrollbar POPULAR

13. SimpleBar

Reading Progress Indicators

14. Reading Progress Circle VISUAL

15. Multi-Section Progress

Performance Optimized Solutions

16. Throttled Scroll Progress

Browser Compatibility & Recommendations

For 2025 Projects:

Browser Support Matrix:

Performance Tips:

Implementation Examples

Complete Vanilla JS Solution:

FAQ

What is a scroll mini map?

How do I implement a scroll mini map on my website?

Why is my scroll mini map not working properly?

How can I optimize scroll mini map performance?

Can I use CSS-only solutions for scroll mini maps?

What are the best libraries for creating scroll mini maps?

How do I handle responsive design with scroll mini maps?

Why does my mini map jump or behave erratically?

How do I customize the appearance of scroll mini map elements?

Are scroll mini maps accessible?

Can I use scroll mini maps with infinite scroll or dynamic content?

What’s the difference between scroll maps and heat maps?

How do I debug scroll mini map synchronization issues?

RELATED POSTS

Web Scraping & Testing After PhantomJS: Modern Tools and Examples

Day 33: Matomo – Leading Open-Source Web Analytics Platform – 7 Days of Docker

Beige is the New Retro – Comprehensive C64 Hardware Replacements Guide 2025

Alexander

DISCOVER.

.highlights

.highlights