Optimize Images for Faster Websites
Images are the largest assets on most web pages. Graviton compresses and converts them to modern formats so your sites load faster, rank higher, and deliver a better user experience.
Images Are the #1 Cause of Slow Page Loads
Unoptimized images account for the majority of page weight on most websites. When your Largest Contentful Paint (LCP) is a hero image that takes seconds to load, your Core Web Vitals suffer, your search rankings drop, and your bounce rate climbs.
Every extra kilobyte of image data means slower load times for users on mobile networks and in regions with limited bandwidth. Google factors page speed directly into search rankings, so unoptimized images do not just hurt user experience — they hurt your visibility.
Modern formats like WebP and AVIF offer dramatically better compression than legacy JPG and PNG, but converting and optimizing assets manually is tedious. Graviton handles it all in seconds with full control over quality and format output.
Up to 90% File Size Reduction
Graviton uses advanced compression algorithms to dramatically reduce image file sizes. Smaller images mean faster Largest Contentful Paint scores and better Core Web Vitals across your entire site.
WebP & AVIF Conversion
Convert your images to modern formats supported by all major browsers. WebP offers 25-35% better compression than JPG, and AVIF pushes that even further — without visible quality loss.
Bulk Processing for Asset Directories
Upload an entire directory of images and compress them all at once. Download the results as a single ZIP file, ready to drop into your project.
Quality Controls for Size vs Fidelity
Fine-tune compression with quality sliders and format-specific controls. Find the perfect balance between file size and visual quality for every use case — hero images, thumbnails, icons, and more.
How Developers Use Graviton
Optimize your project images in four simple steps.
Upload Project Images
Drag and drop your images or select files from your project directory. Graviton accepts JPG, PNG, WebP, AVIF, and GIF up to 50MB each.
Choose a Modern Format
Select WebP for broad browser support or AVIF for maximum compression. Keep the original format if you need legacy compatibility.
Set Quality for Web
Use the quality slider to balance file size and visual fidelity. For most web images, 75-85% quality delivers excellent results at a fraction of the original size.
Download Optimized Assets
Download individual files or grab everything as a ZIP archive. Replace your originals and deploy — your page speed scores will thank you.
Why Developers Choose Graviton
Purpose-built for the performance-conscious developer workflow.
Better Core Web Vitals
Smaller images directly improve LCP, CLS, and overall page performance metrics that Google uses for search rankings.
Faster Page Loads
Reduce image payload by up to 90%, cutting load times from seconds to milliseconds for users on any connection speed.
Higher SEO Rankings
Google rewards fast-loading pages. Optimized images improve your page speed scores and contribute to better search visibility.
Lower Bandwidth Costs
Smaller images mean less data transfer. Reduce your CDN and hosting bills while delivering a better experience to every visitor.
Modern Format Support
Convert to WebP and AVIF for next-generation compression. Serve the smallest possible files to browsers that support them.
No Build Tool Required
Graviton works in your browser — no plugins, no CLI tools, no build pipeline configuration. Upload, compress, and download.
Frequently Asked Questions
WebP has broader browser support (over 97% globally) and is a safe default for most projects. AVIF offers even better compression (up to 50% smaller than JPG) but has slightly less browser support. For maximum compatibility, use WebP. For cutting-edge performance where you can serve fallbacks, AVIF is the better choice.
For most web images, a quality setting of 75-85% delivers an excellent balance of file size and visual quality. Hero images and product photos may benefit from 80-90%, while thumbnails and background images can often go as low as 60-70% without noticeable quality loss.
Graviton is a web-based tool designed for manual optimization workflows. Upload your images through the browser interface, compress them, and download the optimized files to include in your project. It works great for processing batches of images before adding them to your repository.
The impact depends on your current image sizes, but reducing image payloads by 50-90% typically improves LCP by 1-3 seconds on average connections. If your LCP element is a hero image, compression and format conversion can be the single most impactful optimization you make.
Upload your 2x or 3x resolution images to Graviton and compress them with a slightly lower quality setting (70-80%). The higher pixel density compensates for the lower quality, resulting in sharp images on retina displays at a much smaller file size than uncompressed originals.
Ship Faster Websites Today
Start compressing your project images for free. No credit card required.