Duskline — Reading Comfort

Make the current page calmer and easier to read with private, one-click comfort controls.

Duskline gives a busy page a calmer reading rhythm without sending it anywhere. Open Duskline on a regular website, choose Dawn, Dusk, or Night, then adjust text size, line spacing, contrast, and readable line length. The effect is applied only after you choose it and can be reverted with one click. What it does - Three original reading atmospheres: Dawn, Dusk, and Night - Adjustable text size and line spacing - Soft or high-contrast text treatment - Optional readable line length for long paragraphs - One-click apply and revert on the current tab - Optional, per-site comfort profiles that you can remove at any time Private by design - No account, tracking, analytics, or advertising - No remote code or product-controlled network requests - No page text, browsing history, form data, full page paths, or query strings stored - Site profiles retain only a site origin, your local visual choices, and a saved-at timestamp Duskline is a reading-comfort overlay, not a content blocker or a guarantee that every site layout will be fully transformed. Chrome internal pages, the Chrome Web Store, PDFs, and local files are intentionally unsupported.