Contextual Q&A · Videos and presentations

Ask your videos and PDFs

Students ask questions while watching. AI answers using the exact moment: subtitles, slide, and materials you uploaded.

What is Vidar?

A contextual tutor inside every video or presentation, without students creating an account.

  • Videos with subtitles and context

    YouTube, SRT, and support files. AI uses everything to answer accurately.

  • Interactive PDF presentations

    Questions per slide. Ideal for classes, reports, and corporate material.

  • AI anchored to the moment

    Every answer references the minute or slide where the content occurs.

  • Share with a link

    Students access with email. No complex signup to watch and ask.

From watching to asking

Passive video leaves questions unanswered. Vidar turns every moment into a conversation.

Passive video

  • Students rewind without knowing where the answer is
  • Questions by email, out of context
  • PDFs and slides without interaction
  • Drop-off when something is unclear

Interactive content

  • Ask at the exact minute of the video
  • Answers with subtitles and support material
  • Q&A per slide in PDFs
  • Shared link, no student account

How it works

Four steps from your material to the student's first question

  1. 1

    Upload your content

    Video with SRT and context files, or PDF with tagged slides.

  2. 2

    AI indexes the material

    Syncs subtitles, slides, and documents for contextual answers.

  3. 3

    Share the link

    Generate a secure link. Students enter email and access without an account.

  4. 4

    They ask, AI answers

    Voice or text questions. Answers anchored to the content moment.

Why teachers choose Vidar

Fewer repeated questions. More autonomy for learners.

Fewer repeated emails

Doubts resolve in the moment. Students do not wait for office hours.

Answers with timestamps

Every answer cites the minute or slide. Context is never lost.

02:45

Available when students study

At night, on weekends, between classes. AI responds instantly.

Ready in minutes

Upload, share the link, or embed the player. No complex integrations.

Use cases

Where video or PDF content needs conversation, not just playback

HR

Business

Onboarding, training, and video SOPs with Q&A for new employees.

Media

Digital content

Webinars and documentaries. Audiences go deeper without leaving the player.

Sales

Marketing and sales

Product demos and sales decks with automated questions.

This is what it looks like

A question at minute 2:45. The answer uses context from that instant.

Course introduction
02:45
Can you explain this concept better?
At minute 02:45

Sure. At minute 2:45 the instructor defines the term as the iterative validation process you just saw in the diagram.

Type your question...

Upload your first video in minutes

Create your account, upload a video with subtitles, and share the link with your first class.