ImgForge — Image Optimizer

01 Provide Image

Drop image here or browse

JPEG · PNG · WebP · AVIF · GIF · Max 20 MB

02 Loading Priority

Below the Fold

loading="lazy" — deferred load

Above the Fold

fetchpriority="high" + <link preload>

03 Target Devices

Mobile 480px + @2x Tablet 1024px Desktop 1920px

04 Format Priority

Drag to reorder priority. Last format = fallback in <img> tag.

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AVIF

Best compression · Modern browsers

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WebP

Great support · Chrome/Safari/FF

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JPEG

Universal fallback · All browsers

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PNG

Lossless · Transparency support

05 Custom Sizes Optional

Override default widths (px). Leave blank to use defaults.

Mobile (1x)

Tablet

Desktop

06 Alt Text

12 variants will be generated

Processes server-side · EXIF stripped · No files stored

What is ImgForge?

ImgForge is a free, server-side image optimization tool that converts any image into production-ready, Lighthouse-optimized variants in seconds. Upload an image or paste a URL, select your target devices and formats, and receive a ZIP file containing AVIF, WebP, and JPEG variants for mobile, tablet, and desktop — plus a ready-to-paste HTML <picture> snippet with srcset, sizes, proper loading attributes, and optional <link rel="preload"> for above-fold images.

Unlike cloud-based services that store your files, ImgForge processes everything server-side using Sharp — the fastest Node.js image processing library (4–5× faster than ImageMagick) — and streams the ZIP directly to your browser. Your images are never stored after download. EXIF metadata (including GPS coordinates and device data) is automatically stripped from every output file.

How Image Optimization Improves Your Website

Images account for more than 50% of an average webpage's total bytes. Unoptimized images are the leading cause of poor Largest Contentful Paint (LCP) scores — one of Google's Core Web Vitals ranking signals. Serving correctly-sized, next-gen format images with proper srcset and sizes attributes can reduce image payload by 70–90% on mobile devices, directly improving your Lighthouse score and search ranking.

~50%smaller files with AVIF vs JPEG

3Lighthouse audits resolved automatically

0files stored after download

20max variants per image (formats × devices)

ImgForge generates output that passes all three image-related Lighthouse audits: Properly size images, Serve images in next-gen formats, and Avoid layout shifts — by including width attributes in the HTML output to prevent CLS.

Done! ZIP downloaded.

What is ImgForge?

How Image Optimization Improves Your Website

Learn More About Image Optimization