FrameExtractor

Lecture Video to Slides — Capture Slide Stills From a Recording

Turn a recorded lecture or webinar into slide images and one overview sheet.

Quick answer: Build a contact sheet of the lecture to see where slides change, then capture each slide at full resolution with the timestamp grabber. Free and local — useful for study notes and lecture archives.

The frame is decoded locally — perfect for timestamped screenshots of footage you cannot upload.

Core facts
Price100% free, no sign-up
InputRecorded lectures, webinars, talks
OutputOne overview grid + per-slide stills
ProcessingRuns locally in your browser — no upload

What is Lecture Video to Slides?

Recorded lectures hide their content in a two-hour timeline. A contact sheet makes the structure visible at a glance — each slide change appears as a new cell — and from there the timestamp grabber exports each slide as a clean full-resolution still, without the speaker's webcam inset if the recording source allows. The result is a deck of slide images you can file with your notes, plus a single overview sheet that doubles as the lecture's table of contents. Students use this to rebuild decks from recordings; archivists use it to index talks; teams use it to summarize internal webinars.

Common Uses for Lecture Video to Slides

  • Rebuild a slide deck from a recorded lecture for revision
  • Index a two-hour webinar into an overview sheet + slide stills
  • Extract the one slide that answered a question, with its timecode
  • Archive conference talks as slide images with timestamps

Frequently Asked Questions

The webcam inset is on every frame — can I crop it out?
The tool captures the full frame; crop the still afterward in any image editor. If the platform offers a slides-only recording, use that file instead — the extraction will be much cleaner.
How many frames should the contact sheet use?
For a 60-minute lecture, 32–48 cells at roughly 1–2 minute spacing shows every slide change. Denser grids make each cell too small to read the slide titles.
Can I get the slides as a PDF?
Capture each slide as a PNG still, then combine the images into a PDF with any free tool. The per-slide stills are exactly what a PDF needs.

More Frame Tools by Use

More Frame Tools