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DiffSlider: Before & After Image Comparison

Drop two or more images, compare them with a slider, side by side or as a pixel difference, and share one permanent link.

  • Free
  • No sign-up needed
  • No compression
  • Zoom & pixel diff
  • View stats
✨ Or test with sample comparisons:

Your preview appears here. Nothing is uploaded until you press Publish, so it also works as a private, offline comparison.

The view you pick in the preview (slider) is what visitors see first. By publishing you agree to the terms.

Made in this browser

Interactive Showcase

Experience Real 4K Before & After Quality

Test hardware-accelerated 60 FPS split sliding, synced 1600% zoom, and difference maps on real photographic imagery.

Cyberpunk Tokyo Night 4K Upscale

Pixel Diff & 1600% Zoom

💡 Drag slider or zoom in 1600% to read sharp street neon signs & vehicle reflections · See how super-resolution restoration reconstructs fine rain droplets and cyberpunk neon glow with zero compression artifacts.

4K AI Neural Remaster
480p CCTV / Low-Res
480p CCTV / Low-Res 4K AI Neural Remaster

Paste this one-line responsive iframe into WordPress, Shopify, Webflow, Squarespace, Ghost, or any HTML builder:

Pro users get 100% white-label embeds with zero credit badge.
⚡ Plug & Play Interactive Embed Studio

Embed Anywhere with Zero Code

Test live iframe integration across different device viewports, themes, and layouts. Clean, ultra-fast, and works seamlessly with your CMS without altering host styles.

📝 WordPress 🛍️ Shopify 🎨 Webflow 📐 Squarespace 👻 Ghost ⚡ HTML / React
Demo Source:
Embed Theme:
👑 Pro Styling:
Brand Color:
Corners:
Handle:
?color=0ea5e9&radius=sm
🔒 https://acme-clinic.com/case-studies/patient-01
100% Responsive
CASE STUDY #84 Published November 2026

4K AI Neural Upscale & Noise Suppression

Client requested extreme dynamic recovery. Scrub the interactive comparison slider below to inspect fine detail improvements:

⚡ Powered by zero-dependency web component ✓ 60 FPS GPU Acceleration
Ready-to-use Embed Code · Copy & paste into WordPress HTML block or Shopify liquid
<iframe src="https://diffslider.app/embed/demo-ai-upscale?toolbar=1" width="100%" height="520" frameborder="0" allowfullscreen style="border-radius:12px;border:1px solid rgba(255,255,255,0.1);"></iframe>
👑

Need 100% White-Label? Pro members can strip all DiffSlider badges and domain links for a seamless native look on enterprise websites.

Explore Pro White-Label →
⭐ Real-World Business Proof

Trusted by Clinics, Studios & E-Commerce Brands

See how businesses embed DiffSlider into WordPress, Shopify, and Webflow to turn skeptical visitors into loyal paying customers.

Aesthetic Medicine · Beverly Hills, CA

Apex Plastic Surgery & Aesthetics

📝 WordPress / Elementor
Patient inquiry conversion +42% Consults
"Replacing static before/after photos with DiffSlider interactive widgets doubled our consultation inquiries within 30 days."
White-Label Smooth 60fps Zero Layout Shift
Case Study & Demo →
E-commerce & Restoration · Tokyo & New York

SoleRevive Vintage Sneaker Lab

🛍️ Shopify Liquid
Higher service tier orders +28% AOV
"Shoppers love dragging the slider to inspect sole un-yellowing. Our customers see the exact value of our restoration craft instantly."
Zero Lag Shopify App-Free High Retina DPI
Case Study & Demo →
Cosmetic Dentistry · Harley St, London

Lumina Cosmetic Dental Studio

🎨 Webflow CMS
Longer patient engagement 3.4x Dwell Time
"Patients spend minutes comparing veneer shades and alignment. It builds genuine clinical trust before they book their consult."
Custom Brand Color Sub-millimeter Zoom
Case Study & Demo →
Fitness Coaching · Austin, TX

IronForge Physique Coaching

📐 Squarespace
Interactive scrubs on mobile 76% Touch Rate
"Our client body recomposition stories look incredible on smartphones. The touch responsiveness is by far the smoothest in the industry."
Touch-Optimized Dark Theme Pro Customizer
Case Study & Demo →

More than a slider

Four ways to compare

Slider, side by side, toggle (flicker) and a pixel-difference heat map that shows exactly what changed.

Zoom into the pixels

Scroll, pinch or double-click to zoom up to 1600% in every mode, with both images panning together.

Up to 10 images

Compare presets, versions or settings in one link and switch any two images against each other.

Stats for every link

Free accounts see views, interaction rate, countries, devices and which sites embed your comparison.

Video for social apps

Download a 4-second sweep video for TikTok, Instagram and Shorts, where sliders can’t be embedded.

Unlisted and custom links

Hide a comparison from search for free, or give it a readable link like /c/my-texture-pack.

How it works

  1. 1

    Drop your images

    Add 2 to 10 images. Reorder them and name each one.

  2. 2

    Pick the view

    Try the slider, side by side, toggle or difference view and zoom in. Visitors see the view you leave on.

  3. 3

    Share and track

    Publish to get a link, an embed code and forum snippets. Sign in to see who is watching.

Industry Use Cases & Real-World Examples

Explore how creators, clinics, and developers present visual proof with interactive sliders.

View all 10+ use cases →

Switching tools? See how DiffSlider compares with imgsli , JuxtaposeJS and imgico , or browse popular comparisons.

💡 Clarifications & Details

Frequently Asked Questions

Everything you need to know about image comparison, zero-code embedding, and privacy.

1 Is it free?
Yes. Making, sharing, embedding, unlisted links and view statistics are all free. An optional Pro plan removes ads and watermarks, allows larger files and keeps a year of stats.
2 Which image formats can I use?
JPG, PNG, WebP, GIF and AVIF, up to 25 MB per image and 10 images per comparison. Same-size images compare best.
3 Are my images compressed?
No. Files are stored and served exactly as uploaded, so you can compare at the pixel level.
4 Do I need an account?
No. Without an account you can still publish and delete from the same browser. A free account adds statistics, custom links and editing, and keeps comparisons you made before signing up.
5 Can I embed a slider on my website?
Yes. Each comparison has an iframe embed code, plus Markdown, HTML and BBCode snippets for forums.
6 What does the difference view show?
It darkens the first image and lights up every pixel that changed in the second, so small edits, compression artifacts and upscaling detail are easy to spot.
7 Can I compare images without uploading them?
Yes. The preview runs entirely in your browser. Nothing leaves your device until you press Publish.

Have a question that's not answered here?

Explore our in-depth guides, check comparisons with alternatives, or reach out anytime.