Compress JPEG, WebP, or AVIF with live comparison, quality controls, and downloadable output for faster-loading visuals.
Image Compressor is a browser-based image optimization tool that helps you reduce file sizes while maintaining visual quality. Supporting JPEG, WebP, and AVIF formats, it provides real-time side-by-side comparison, granular quality control, and instant downloads. Unlike server-based compressors, all processing happens locally in your browser, ensuring privacy and speed. Perfect for web developers, designers, and content creators who need to optimize images for faster loading times without compromising quality.
Compress images for websites and web applications to reduce page load times, improve Core Web Vitals scores, and enhance user experience. Choose modern formats like WebP or AVIF for maximum compression efficiency while maintaining visual quality.
Optimize images for social media platforms by reducing file sizes while preserving quality. Meet platform size limits without sacrificing visual appeal, ensuring faster uploads and better engagement.
Compress images for email newsletters and marketing campaigns to reduce email size, improve deliverability, and ensure fast loading even on slow connections. Balance quality with file size for optimal inbox rendering.
Reduce image sizes for mobile applications to minimize app bundle size, decrease download times, and improve runtime performance. Choose appropriate quality levels based on target device capabilities.
Optimize images for blog posts, articles, and content management systems. Reduce storage costs, improve SEO rankings through faster page speeds, and provide better reading experience across all devices.
Click the file input to select an image from your device. The tool accepts all common image formats (JPEG, PNG, WebP, AVIF, etc.) and displays the original image immediately.
Choose your desired output format (JPEG, WebP, or AVIF), adjust the quality slider (1-100), and optionally set maximum width or height constraints. The preview updates in real-time as you adjust settings.
Review the side-by-side comparison showing original vs. compressed versions, check the savings percentage and file size details, then download the optimized image when satisfied with the results.
WebP offers excellent compression and wide browser support (95%+ of users). AVIF provides even better compression but has less browser support (~80%). JPEG is universally supported but less efficient. For modern websites, WebP is the best balance.
No. All compression happens entirely in your browser using Web APIs. Your images never leave your device, ensuring complete privacy and security. This also means faster processing with no upload/download delays.
For photographs, 75-85 provides excellent quality with good compression. For images with text or sharp details, use 85-95. For thumbnails or backgrounds, 60-75 often suffices. Experiment with the real-time preview to find the optimal balance.
Yes. Use the max width and max height fields to constrain dimensions. The tool maintains aspect ratio automatically. This is useful for generating responsive images or meeting specific size requirements.
Typical savings range from 40-80% depending on the original format, target format, and quality settings. Converting PNG to WebP often achieves 70%+ reduction. The tool shows exact savings in real-time.
All lossy compression reduces quality slightly, but modern formats like WebP and AVIF are highly efficient. At quality 75+, differences are typically imperceptible. Use the side-by-side comparison to verify quality meets your needs.
JPEG, WebP, and AVIF are lossy by default: lowering quality shrinks files at the cost of artifacts, so keep originals for archival use. AVIF can be markedly smaller but encodes slower and lacks full legacy support; providing WebP/JPEG fallbacks in production ensures compatibility while benefiting from modern compression where possible.