max-w

About

Many websites – especially older blogs – let their main content stretch across your entire screen. On a large or ultrawide monitor that means very long lines of text that are tiring to read. max-w adds the container these sites are missing: it caps the content width and centers it, so lines stay a comfortable, readable length – without changing anything else about the page.

Unlike reader-mode extensions, max-w keeps the site exactly as it is. It just fixes the width.

FEATURES
• Opt-in per site – does nothing until you turn it on for a site, and it remembers your choice.
• Automatic detection – finds the main content and applies a sensible width.
• Skips pages that already have a container – no double work.
• Manual element picker – click the exact element you want to constrain.
• Adjustable width – set the max width per site with a slider.
• Scrollbar-safe – keeps the page's scrollbar at the edge of the window.
• Syncs your settings across your signed-in Chrome profiles.

PRIVACY
max-w runs entirely in your browser. It collects no data and makes no network requests. Your per-site settings are stored with Chrome's own sync storage.

max-w is free and open source: https://github.com/TimSchulzRC/max-w