Responsive Images in 2025 — Srcset/Sizes Patterns That Actually Match Layout

Published: Sep 18, 2025 · Reading time: 1 min · By Unified Image Tools Editorial

Browsers choose based on your sizes. Get the math right and you cut bytes without losing sharpness.

Patterns

Single-column article: sizes="(max-width: 768px) 100vw, 768px"
Card grid: use container queries or explicit size buckets.
Hero/LCP: add priority and consider preloading.

Generate srcset: Srcset Generator

Background on resizing: Right-Size Images in 2025 — Layout-Backed Resizing That Cuts 30–70% Bytes

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