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The Hub for Infinite
Digital Knowledge.

Archive thousands of books, manage intricate lectures, and simulate mock exams with zero network dependency. Secure, offline, and browser-agnostic.

Feature Gallery

Explore the interface. Click any card to Expand Video Preview.

01

Digital Vaults

Organize courses into hierarchical local repositories.

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02

Role Security

Advanced scale for profiles. Locked for juniors; admin for seniors.

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03

Exam Engine

Hyper-precision timers (0.5s) with automated result data.

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04

Bulk Migration

Import test banks using JSON academic data sets.

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05

Lecture Studio

Host local MP4 and MP3 files. Zero server lag.

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06

Danger Zone

Master reset authority. Wipe global history or sanitize app.

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07

Local Privacy

Sandbox IndexedDB storage. No telemetry or data leakage.

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08

Quiz Architect

Manual builder for multiple choice, checkbox, and essays.

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09

Analytics

Detailed attempt tracking for student growth mapping.

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10

Installable Web & Mobile

Full PWA capabilities. Add YDL to your home screen on mobile or install as a desktop app for a native experience.

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License Options

Select the package that fits your educational vision.

Personal / Institution

Regular License

  • Single end-product usage
  • Lifetime updates & support
SaaS Ready
Commercial / Project

Extended License

Strict Resale Restriction:

  • No As-Is Resale: Reselling copies is prohibited.
  • Modification Required: Significant updates needed.

Account Setup Procedure

Essential for all first-time registrants and system owners.

1

Registration Auth: For first time account registration, the system requires an **Admin Authorization Passcode**: admin2121.

2

Full Admin Creation: Select "administrator" during signup and use passkey awa2026.

3
Root Email admin@awa.com
Root Password admin2121

Technical Manual

01 Workflow

"Add Option" Button: Appends distractors. "Add and Save" Button: Saves to browser persistent bank using IndexedDB technology.

02 Account Setup Procedure

Registration requires Admin Passcode: admin2121. This ensures root security is maintained during initial deployment.

03 Supported JSON Bulk Formats

Format A: Standard Assessment
{
  "examTitle": "Title",
  "questions": [
    {
      "id": "q1",
      "type": "multiple_choice",
      "question": "Question?",
      "options": ["A", "B", "C", "D"],
      "answer": "A"
    }
  ]
}
Format B: Institutional/Detailed
{
  "title": "Exam",
  "items": [
    {
      "id": "1",
      "prompt": "Prompt",
      "choices": [
        { "label": "A", "text": "Choice" }
      ],
      "correctChoice": "A"
    }
  ]
}

04 Media Support

Supported formats: MP4 for video lectures, MP3 for audio, PDF for documents, and JSON for assessment data sets.

05 Legal & Privacy Statements

Privacy Policy

Your files never leave your device. Stored in browser-sandboxed IndexedDB storage. Once authorized, YDL functions entirely offline.

Terms of Use

Purchasing a license grants non-transferable right to use YDL v4.0. Resale of original copies is strictly prohibited without modification.