Compress & Optimize Images Online – No Uploads Needed

Free tool to compress, resize and convert images fully in your browser. Supports WebP, AVIF, JPEG, PNG, GIF, BMP & TIFF.

✓ 100% private✓ High quality✓ No signup✓ Completely free

Drag your images here or click to browse

Why choose FotoLince?

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Private

Images never leave your device

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Fast

Instant WebAssembly processing

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Quality

Advanced compression preserves detail

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Free

No usage or file limits

What users say

"Reduced my shop load time by 40% with no visual downgrade. Love that everything is local."

Ana, Web Designer

"Finally a converter/compressor that respects privacy. Results are on par with desktop tools."

Mark, Photographer

"Switching to WebP/AVIF with FotoLince lifted my Core Web Vitals scores immediately."

Laura, Ecommerce Manager

FAQ

Is my image uploaded to a server?+

No. All compression, conversion and resizing happens locally in your browser using WebAssembly. Your files never leave your device.

Which image formats are supported?+

WebP, AVIF, JPEG, PNG, GIF, BMP and TIFF. You can convert between them and adjust quality parameters.

Will quality be reduced?+

You choose the balance. The tool provides visually lossless defaults while letting you fine‑tune quality or use lossless modes for formats that support it.

Learn image optimization

Visit the blog for performance techniques, ecommerce tips and format guidance. Full library in Spanish – English versions in progress.

View blog articles →

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Optimized for United States

Ecommerce in United States

Compress and optimize product images for Amazon, Etsy, eBay, Walmart and platforms like Shopify & WooCommerce.

Success story:"Cut homepage weight by 42% and improved LCP by 380ms using FotoLince batch compression."

Real estate

Improve listings on Zillow & Redfin with lighter images that still look sharp.

Optimization tip:AVIF & WebP assets often deliver 25–45% byte savings over legacy JPEG/PNG when tuned at visually lossless settings.

Processing is 100% local & free. No server uploads: images never leave your device. Fast, secure & private. 🇪🇺 Complies with GDPR. Supported by unobtrusive ads only.