CONEXSOFT BrowserChrome Browser Extensions

We provide extensions that work entirely in the browser — on-screen annotation, tab recording, continuous capture, YouTube English caption learning, and more. Each product page includes screenshots and step-by-step diagrams.

Install from the Chrome Web Store. Some products offer a free tier so you can try before upgrading to Pro.

  • Screen Marker

    Screen Marker highlighting text with a highlighter-style marker A Chrome extension that draws rectangular markers on the web page you are viewing — hold a modifier key and drag. Ideal for presentations, online classes, and pointing during screen sharing.

    Highlights

    Circle an area instead of saying “look at the top left.” Markers appear in shared screens and tab recordings. Free: one preset, one marker at a time. Pro: three presets, multiple simultaneous markers, full style rendering, and settings export.

    Chrome Web Store (rating 5.0 / ~38 users / publisher conexsoft)

  • YouTube English Caption Learning Support

    A Chrome extension that displays YouTube English captions in a custom overlay with CEFR difficulty coloring, dictionary lookup, known-word tracking, level estimation, and read-aloud to support English study.

    Learning flow

    Pause on hover, tap a word for English-English plus Japanese definitions, phrase highlighting, and a side panel of words in the video. Native captions are hidden in favor of the learning display.

  • Browser Tab Recorder

    Live preview and audio level meters while recording Records the tab, window, or screen you choose in Chrome’s screen-share dialog, together with audio, as WebM. Start, split, and save from a single popup.

    Long sessions and auto-split

    Chunks saved to IndexedDB. Split or stop based on blackout, still frame, and silence rules. Silent recording, segment merge, and WAV / MP3 / ZIP export. Free tier: 15 minutes per session.

    Chrome Web Store (rating 5.0 / ~231 users / publisher conexsoft)

  • Continuous Automatic Page Capture

    Turning pages while reading material with continuous capture Sends arrow keys or scroll events to the active tab while capturing screens in sequence, then saves them as one PDF. Suited to e-book viewers and long documents.

    Free / Pro

    Free: up to 30 shots per session at 1x resolution. Pro: up to 200 shots, higher resolution, left-right split layout, and automatic key-direction reversal on stop. Processing stays inside the browser.

    Chrome Web Store (rating 5.0 / ~56 users / publisher conexsoft)