Advanced Image Optimization FAQ
Everything about compression strategy, modern formats and performance budgets for professional teams.
How does FotoLince work without uploading my images to servers?
FotoLince uses WebAssembly technology to process all images directly in your browser. No files are uploaded to our servers, ensuring total privacy and fast processing.
Can I really optimize images without losing quality and maintaining privacy?
Yes. Optimization (compression, conversion, and resizing) happens 100% locally in your browser using WebAssembly. We control compression levels to preserve sharpness and color, achieving reductions of up to 80% with no perceptible loss while your files never leave your device.
What image formats can I compress with FotoLince?
FotoLince supports multiple formats like JPEG, PNG, WebP, AVIF, GIF, BMP, and TIFF. You can compress any of these formats and also convert between them to further optimize your images.
Is there a limit on the size or number of images I can process?
There are no limits imposed by us. The only limits are your own device's resources.
Does FotoLince work on mobile devices?
Yes, FotoLince is optimized for both computers and mobile devices. The interface adapts to any screen size.
What compression level should I start with?
Begin around quality 75–80 for JPEG/WebP, 45–55 for AVIF, then inspect visually. Lower further if artifacts are acceptable.
Should I serve AVIF and WebP together?
Yes, use content negotiation or build pipelines to provide AVIF → WebP → JPEG fallbacks for maximum reach & minimal bytes.
How do images impact Core Web Vitals?
Heavy images inflate LCP and CLS (if dimensions missing). Proper compression, modern formats, defined width/height and responsive sets reduce impact.
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