Free guide

How to Turn Any Video Into Your Own Course

The free 3-step method

Published by Undastandable — plain-English explanations for complicated things.

Why this guide exists

Online video is the biggest free library of teaching in human history, and almost nobody uses it like a library. You watch a 40-minute explanation, nod along, feel like you learned something — and a week later, if someone asked you to explain it back, you couldn't. That's not a memory problem. It's a format problem. Watching isn't learning. It just feels like learning.

The fix isn't watching more, and it isn't watching slower. It's turning what you watch into something you keep — in your own words, organized so you can find it again, and linked back to the exact moment it came from so you never have to take your own notes on faith.

That's the whole method. Three steps: Capture. Distill. Keep. Every step in this guide works by hand, today, for free — no software, no account, no purchase. You need a video, a document (a plain text file, a Notes app, a Google Doc — anything you can type into), and about half an hour per video you actually care about. That's it.

One honest thing up front: doing this by hand is real work. It's worth it for videos that matter to you and too slow to do for everything you watch casually. Keep that in mind as you go — it'll make sense why by the end.

Step 1 — CAPTURE: get the actual words out of the video

Many videos have a transcript you can read. Underneath the video sits a transcript — every word that was said, usually with a timestamp attached to each line. Most people never notice it's there, because the platform buries it a click or two deep.

How to find it, using YouTube as the example (the steps are similar on most other video sites — look for a "Show transcript," "Captions," or "CC" option near the video controls or in the description):

Open the video on a computer (this is much easier on desktop than mobile).
Click the three-dot menu ("···") below the video, or open the description panel.
Look for "Show transcript." Click it.
A panel opens on the side of the video with the entire spoken content, broken into short timestamped lines.
Select all of it, copy it, and paste it into your document.

(To be clear: Undastandable is not affiliated with YouTube or Google in any way. It's simply where a large share of the world's teaching video happens to live right now, which is why it's the easiest example to walk through.)

You now have the lecture as text. That one change is bigger than it sounds: text is searchable, text is skimmable, and text doesn't evaporate from your memory the way a half-watched video does.

The timestamp technique — don't take notes on faith

Here's the part most people skip, and it's the part that makes everything after this step actually trustworthy: keep the timestamp next to every point you pull out, all the way through the process.

When you paste the transcript, each line already has a timestamp on it (something like 12:34). As you go through Steps 2 and 3 below, don't strip those numbers out — carry them forward next to whatever you write. The reason is simple: a note with no source is just something you believe. A note with a timestamp is something you can check. Six months from now, if you're not sure you remembered a claim correctly, or someone asks "wait, did they actually say that?" — you jump straight back to the exact second in the video and watch them say it. No searching, no re-watching the whole thing, no relying on your memory of your own notes.

This one habit is the difference between a pile of notes you half-trust and a real personal reference you can stand behind.

Step 2 — DISTILL: turn the wall of words into plain English

If you look at the transcript you just pasted, you'll see the problem immediately: it's a wall. No paragraphs. Barely any punctuation. "Um," "you know," and false starts everywhere. It's accurate — and it's unreadable, and it is not your notes yet.

Distilling is the step that turns raw words into something worth keeping. Here's how to do it by hand:

Read the transcript once, in order, from your captured timestamps.
Every time the speaker finishes a complete thought, stop and write one sentence — in your own words, plain English, like you're explaining it to a friend who wasn't there.
Keep the timestamp from that section attached to your sentence. Format doesn't matter much; something like this works fine:

[03:12] — The reason X happens is actually Y, not what most people assume. [07:45] — Here's the counterexample that breaks the common advice. [14:20] — The practical takeaway: do this, not that.

Keep going to the end. A 40-minute video usually distills down to somewhere between 15 and 25 sentences like this.

Why put it in your own words instead of just copying the good lines from the transcript? Because the moment you rephrase something correctly, you've proven you understood it — and copying doesn't prove that. Writing your own sentence does. And your sentences set up the two best-tested ways to remember what you learn: testing yourself and spaced review. Step 3 shows how to do both.

Want help with a first pass? As an option, you can paste the transcript into Dumb It Down to get a plain-English version to start from. Then still write each sentence in your own words — that part is what makes it stick.

Two honest notes before you move on. First: this step really does take 20–30 minutes per video by hand, sometimes longer for dense material. It's worth every minute for something you genuinely want to know — and it is genuinely too slow to do for every video you idly watch. That friction is normal; it's not you doing it wrong. Second: you'll notice that a lot of a long video boils down to padding once you distill it. That's not a flaw in the method — that's the method working. You're extracting the actual course from the surrounding filler.

Step 3 — KEEP: turn scattered notes into your own course

This is the step almost everyone skips, and it's the one that makes the first two steps worth doing at all. A folder full of separate, disconnected notes files is not a course — it's just a slightly more organized pile. Keeping means giving your notes a place to live and a shape that grows.

A simple system that works from day one:

One file per video, saved with a clear name — the topic, not the video's clickbait title. Example: mortgages-how-rates-are-set.txt, not I-was-SHOCKED-episode-47.txt. Keep the source link and the date you watched it at the top of the file.
Group files by topic in folders, not by date or by which video they came from. If you're learning about personal finance, you'll end up with files on rates, budgeting, taxes, and so on — group them that way, the same way a real course would be organized into modules.
Once you have three or more files on the same topic, write one summary file that pulls the best point from each — with the timestamps and source videos still attached to each point. That summary file is your actual personal syllabus: it's shorter than all the source material combined, it's in your own words, and every claim in it still traces back to a specific moment in a specific video if you ever need to double-check it.
Revisit before you forget, not after. A quick rule that costs almost nothing: skim a file again about a week after you write it, and once more about a month after that. You're not re-watching anything — you're going back over your own plain-English sentences, which takes two minutes and is why Step 2 mattered. Test yourself first: cover each sentence and try to say the point from memory, then check.

This is also where the timestamp habit pays off a second time. When you're merging notes from several videos into one summary, you'll sometimes find two sources that seem to disagree, or a claim that feels off on a second read. Because you kept the timestamp, you don't have to guess — you go back to the exact second, watch it again, and settle it. Notes without timestamps just sit there being uncertain forever.

What you actually have when you're done

After Capture, Distill, and Keep, a video you watched once has turned into: a plain-English summary in your own words, organized by topic instead of by whichever video it came from, with every point traceable back to the moment it was said. Do that with enough videos on a subject and you've built yourself a real course — one nobody else designed, built entirely out of material that was already free.

The honest tradeoff, one more time: by hand, this is roughly half an hour of real work per video that matters to you. That's a fair price for something you'll actually remember and can actually trust — and it's exactly why this is worth doing selectively, for the videos you care about, rather than for everything you watch. What to do about the videos that don't feel worth half an hour of your time, and how to speed the whole process up once you know it cold, is something the emails that follow this guide will cover, one useful lesson at a time.

One honest preview, since it'll come up: any tool worth trusting to "speed this up" has to work the same honest way you just did it by hand — pulling only from transcripts the video's own platform already makes public, never bypassing a paywall, cracking a subscription, or scraping something private. That's the bar. Keep it in mind if you ever go looking for one.

For now: pick one video you've been meaning to actually learn from, not just watch. Run it through the three steps. You'll feel the difference by the time you hit Step 2.

— David Undastandable — plain-English explanations for complicated things