Image Comparison Slider
Free online image comparison slider — pixel-level before/after comparisons.
Why use ToolJiffy Image Comparison Slider?
Visualizing pixel-level differences between two images—such as Before vs After photo retouching, image compression quality comparisons, photo filter effects, and UI redesigns—requires an intuitive split-screen slider. Showing static side-by-side images fails to highlight fine details. ToolJiffy Image Comparison Slider provides an interactive, draggable split-screen preview in your browser.
- Interactive Draggable Split-Screen Slider: Drag the slider handle left/right or up/down to inspect Before vs After image details.
- Horizontal & Vertical Split Modes: Toggle slider orientation to match landscape or portrait photo compositions.
- Embeddable HTML & CSS Code Generation: Generates responsive before/after slider component code for your blog or portfolio.
- 100% On-Device Browser Security: Renders comparison sliders locally in browser memory without cloud server tracking.
Browser-native HTML5 Canvas Split-Screen Rendering Engine
ToolJiffy's comparison slider uses dual HTML5 <canvas> rendering layers with clipping path masks synchronized to mouse and touch drag events. It renders pixel-perfect before/after overlays at native resolution.
Whether presenting photo restoration work to clients, demonstrating image compression savings, or showcasing graphic design edits, interactive sliders engage visitors.
Client-side security for private image comparisons
Comparing sensitive client photos, confidential product renders, or unreleased UI designs should never require uploading files to remote third-party servers.
ToolJiffy operates on a zero-cloud architecture. All slider rendering executes 100% locally in your browser tab. Your images never leave your device.
Step-by-step guide to creating an image comparison slider
- Upload Before & After images: Drag & drop your original "Before" photo and edited "After" photo into the editor above.
- Adjust slider position & mode: Drag the interactive handle and toggle horizontal or vertical split orientation.
- Download snapshot or copy embed code: Download a comparison snapshot image or copy the embeddable HTML/CSS code snippet.
Frequently asked questions
How does the Image Comparison Slider work in browser memory?
ToolJiffy renders two images (Before vs After) side-by-side inside a interactive split-screen canvas with a draggable divider handle operating 100% in browser memory.
What use cases is the Image Comparison Slider designed for?
Ideal for demonstrating photo compression results, image restoration, color grading, photo retouching, UI design redesigns, and 3D render comparisons.
Is my uploaded image data sent to any cloud server?
No, 100% private. All image loading, split-screen rendering, and interactive slider events execute locally inside your browser memory. Your images never leave your computer.
Can I export or record the interactive slider as an image or GIF?
Yes! Download snapshot comparisons at any slider position or export a side-by-side composite image.
What image formats are supported?
Upload PNG, JPG, WebP, GIF, and SVG images of any resolution.
Can I customize the slider handle orientation (Horizontal vs Vertical)?
Yes! Switch between vertical split-screen and horizontal split-screen slider orientations.
Can I generate embeddable HTML/CSS code for my website?
Yes! ToolJiffy provides copyable HTML/CSS component code to embed interactive before/after sliders on your own website.
Is ToolJiffy Image Comparison Slider free without limits?
Yes! ToolJiffy is 100% free with unlimited usages, zero account sign-ups, and zero watermarks.
Explore related developer tools
Compress images with Image Compressor, inspect metadata with Image Metadata Viewer, annotate screenshots with Screenshot Annotator, or process images with All-in-One Image Processor.