Google Chrome May Add Native Lazy Loading for Video and Audio

Google Chrome and other Chromium-based browsers are preparing a major performance upgrade with native lazy loading for video and audio. The feature builds on existing lazy loading for images and iframes, aiming to improve speed and efficiency across modern websites.

The change comes from a proposal by developer Helmut Januschka and is already progressing toward a full rollout in upcoming Chrome builds.

What Native Lazy Loading Means for Media

Lazy loading ensures that media files load only when users scroll to them. This prevents browsers from downloading large video or audio files that users may never view.

Until now, developers relied on JavaScript solutions like Intersection Observer to achieve this behavior. That approach often added complexity and failed to integrate cleanly with browser-level optimizations.

With this update, developers can simply use a native HTML attribute:
loading=”lazy” on video and audio elements.

Why This Change Matters

The native implementation brings several immediate improvements. Pages load faster because browsers skip unnecessary media downloads during initial load. Bandwidth usage drops, especially on content-heavy websites filled with embedded media.

Performance also improves on lower-end devices, where handling multiple media assets can slow down rendering. Since the feature integrates directly with the browser’s preload scanner, it allows smarter, network-aware decisions.

Unlike JavaScript-based methods, the native approach avoids blocking page load events and handles autoplay and preload behavior more efficiently.

Development Timeline and Rollout

Work on the feature started in January, followed by deeper integration in February. By late March, the feature entered the shipping process and is now enabled by default in upcoming builds.

Google plans to roll out native lazy loading for video and audio broadly with Chrome 148, making it available to users without requiring any additional setup.

A Step Forward for Web Performance

This update signals another shift toward browser-native performance optimizations. By removing reliance on JavaScript workarounds, Chromium-based browsers continue to simplify development while improving real-world browsing speed.

In other Google-related news, the company recently patched multiple zero-day vulnerabilities and released an emergency update to address an active exploit. Chrome remains a frequent target for attackers, with threats like VoidStealer highlighting the importance of ongoing security improvements.

Via Windows Latest