LineCheck

Read one line at a time. Keep track of what you have checked. LineCheck is a keyboard-controlled reading guide for line-by-line reading and text highlighting. Your current line stays clear while the surrounding page dims and blurs. • ↑ ↓ to move between lines; ← → to magnify only the current line • Original page layout stays unchanged; enlarged lines keep a fixed left starting point • Enter marks reviewed text in green; F flags it in red. Repeat to remove a mark • Original text colors stay unchanged, with controls below the reading line Records stay on your device. No account, screen capture, or developer upload of webpage content. English, Chinese, Japanese and Korean supported. Toggle: Alt+Shift+E on Windows, Option+Shift+E on Mac. Esc closes. Customize shortcuts from the popup. For ordinary text webpages. PDFs, browser pages and some complex layouts are unsupported. If enlarged text does not fit, reduce magnification. Changed text may prevent mark restoration. This is a manual review tool, not an automatic grammar checker. Open source: https://github.com/shaokunW/linecheck Privacy: https://shaokunw.github.io/linecheck-site/privacy.html