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Image Compressor

Compress PNG, JPG and WebP images in your browser — reduce file size by up to 80% without visible quality loss. Files never leave your device.

PNG JPG WebP Client-side only Batch compress No upload
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Free · No credit card · 50 credits/day

Web image format comparison

Format Type Transparency Best for
WebP Lossy + lossless ✅ Yes Photos, general web use — 25–35% smaller than JPG
AVIF Lossy + lossless ✅ Yes Best compression, newer — Chrome + Safari 16+
JPG Lossy ❌ No Photographs, no transparency needed
PNG Lossless ✅ Yes Screenshots, logos, UI with transparency
GIF Lossless (256 colors) ✅ Yes Simple animations only — replaced by WebP/video
SVG Vector ✅ Yes Icons, logos, illustrations — scales to any size

Frequently asked questions

What is the best image format for the web?

WebP is the best general-purpose format: 25–35% smaller than JPG at equivalent quality, supports transparency and lossless compression. AVIF is even smaller but requires Chrome/Safari 16+. For photos: WebP or JPG. With transparency: WebP or PNG. Logos/icons: SVG.

How much can I compress an image without visible quality loss?

JPG/WebP at 75–85% quality is generally indistinguishable from the original at screen resolution, reducing size by 50–70%. PNG lossless compression saves 20–40%. The biggest win: resize to the actual display size first — a 4000px photo shown at 800px is 25× more pixels than needed.

Are my images uploaded to a server?

No — the compressor works entirely in your browser using the HTML5 Canvas API. Your images are never uploaded. This means instant processing, full privacy, no file size upload limits, and it works offline once the page has loaded.

What is the ideal image size for a website?

Hero images: under 200KB at 1920px. Blog images: under 100KB at 800px. Product images: under 150KB at 1000px. Thumbnails: under 20KB at 300px. Use srcset for responsive delivery. Google PageSpeed Insights flags images that exceed their recommended compressed size.

Related design tools

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 Favicon Generator

Generate PNG favicons at all required sizes from any image.

 Image Metadata Viewer

View EXIF data in your images before compressing or publishing.

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