Simple tools,
faster work.

JJ App Lab makes video, audio, and document work easier. (sample)

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  • Sample data

    PDF와 이미지 문서를 가볍게 열어 보는 프로그램입니다.

    Supported OS
    Windows 11
    Latest version
    Version to be announced

Install from Microsoft Store

We recommend installing every program from Microsoft Store.

  1. Automatic updates

    When a new version is released, Microsoft Store updates the program for you. No need to download the installer again.

  2. No publisher warning

    Programs are distributed through Microsoft Store, so they install without the “Unknown publisher” warning.

  3. Easy to remove

    Like any other Windows app, remove it from Installed apps in Settings or from the Start menu.

Direct downloads are available on each program's download page after you review a warning.Installation guide

Need help?

  • Guides

    Installation steps and how to use each program's main features.

  • Report a bug

    Tell us about a problem you ran into or a feature you'd like.

  • Email us

    For anything the report form doesn't cover, send us an email.

    Contact coming soon

Frequently asked questions

Sample data

Where do I install the programs?

We recommend installing with the [Install from Microsoft Store] button on each program page. If you can't use Microsoft Store, you can download the installer directly from the program's download page.

Running a downloaded installer shows an "Unknown publisher" warning.

It means Windows couldn't verify where the file came from. It does not mean the file is damaged. Only run the file if you downloaded it from this site. See the installation guide for how to proceed.

How do I get new versions?

If you installed from Microsoft Store, the Store updates the program automatically when a new version is released. Changes and known issues for each version are on the updates page.

How do I report a problem?

Please use the form on the bug report page. If the form doesn't work, you can also email [email protected] directly.

The team

JJ App Lab은 영상·오디오·문서를 다루는 Windows 프로그램을 만드는 소규모 팀입니다. 어떤 프로그램을 왜 만드는지 소개 페이지에서 볼 수 있습니다. (예시)

Sample data

  • J 개발자

    아이디어, 테스트, 총괄

    비전 없이 도메인 비부터 지르고 본 사람

  • J 개발자

    개발

    심심하면 바이브코딩 조지는 사람

Some items have not been translated yet and are shown in the original Korean.