한국어

About BlinkClass

BlinkClass is a web platform where Korean middle and high school teachers build interactive lessons, present them in class, and have students take part from their own devices. Founded September 2026. Contact: admin@blinkclass.kr

What it is and who it is for

BlinkClass is for teachers and students in Korean middle and high schools. A teacher prepares a lesson as a sequence of scenes, shows it on the classroom projector, and students follow along and answer on tablets or phones after entering a class code.

What works today

  • Lesson editor. Build and edit a lesson scene by scene, with reveal steps, activities and speaker notes.
  • PowerPoint import. Bring an existing .pptx file in as an editable lesson.
  • Presenter screen. The teacher runs the lesson from a console while the projector shows the class view. Students join with a 6-digit code or a QR code.
  • Bling Quiz. Live quizzes on the projector, answered from student devices, played individually or in teams.
  • Bling Board. Collect student responses as messages, posts, word clouds and other layouts, with a projector view.
The BlinkClass lesson editor showing a sample lesson: a slide list on the left and the first scene, titled 'The city as a canvas', in the centre.
Lesson editor with a sample lesson.
The projector view of a sample lesson scene with three cards, Form, Feel and Place, each opened by a reveal step.
Projector view after the teacher opens each reveal step.
A Bling Quiz question on the projector with four answer choices, a countdown timer and a response count.
A Bling Quiz question on the projector.
The Bling Board editor with a question for students on the left and a projector preview with sample responses on the right.
Bling Board editor with a projector preview.

Screenshots are from the app's demo mode with sample content only. Try the demo without signing in: blinkclass-demo.vercel.app. It runs in your browser with sample content, and nothing is saved to a server.

Development timeline

  1. Development began

    First commit of the lesson platform.

  2. PowerPoint import and presenter view

    Lessons can be imported from PowerPoint and run on a projector.

  3. Live quizzes

    Students answer quiz questions from their own devices.

  4. Dual-screen presenter console

    Teacher console and projector view on separate screens.

  5. BlinkClass founded

    Privacy policy notice dated 2026-09-26.

  6. blinkclass.kr in production; Bling Board

    The production site went live and Bling Board was added to lessons.

  7. First recorded use in a real lesson

    Used in a school class with the school's privacy approval.

  8. Fixes from classroom use released

    Steadier live updates when a whole class joins at once, plus spreadsheet quiz import.

Weekly changes are listed in the changelog.

Current stage

BlinkClass is in beta at blinkclass.kr and free to use. The school's privacy approval for the 2026 school year is in place, and since October 2026 it has been used in real lessons at one school. We are fixing what those lessons showed before widening the pilot to more classes.

Who builds it

BlinkClass is built by JONGGEUN KIM. Questions and feedback: admin@blinkclass.kr.

How we build with Claude

BlinkClass is developed with Claude Code. Since October 2026, Claude Code has worked on the editor, live quiz, database and tests, and those commits carry a Co-Authored-By: Claude line.

Planned: a Claude API feature that turns a teacher's lesson goal into a draft lesson, quiz and activities. The app has no AI features today.

Safety

  • AI drafts will go to the teacher only. Nothing reaches students until the teacher has reviewed and published it.
  • Students do not chat with Claude or any other AI.
  • Drafting will use the teacher's lesson goal and materials, not student names, answers or records.
  • Real student names are used only after the school's privacy approval, and offline presentation copies contain no student data.

See the privacy policy and terms of service.