A PRIVATE LIBRARY FOR YOUTUBE LEARNING

Remember what
YouTube taught you.

Find it again at the exact moment.

Grey is a private learning library for people who use YouTube to teach themselves. Save the videos you learn from. Grey keeps their summaries, key ideas, transcripts, and exact moments so you can find what you learned later—in your own words.

Try the sample—no account needed.

Free while Grey growsNo credit cardPrivate by default

TRY A SAMPLE LEARNING LIBRARY · NO SIGN-IN

Choose something you only half remember from a video:

I LEARNED THIS ON YOUTUBE…

Where did they explain why I forget good ideas?

FICTIONAL EXAMPLE · FOUND FROM MEMORY
Fictional educational podcast about memory▶18:42

THE LONG VIEW · FICTIONAL PODCAST

Why Your Brain Forgets Good Ideas

English · Learning · Psychology
SOURCE EVIDENCE18:42
“Memory improves when we connect an idea to where we heard it and why it mattered.”

Grey found the explanation about reconnecting an idea to its source.

This demo is fictional. Your real library is private and built only from videos you choose.

BUILT FOR SELF-DIRECTED LEARNING

Not every video.
Only the ones that teach you something.

When YouTube is your classroom, Grey turns the videos you choose into a private learning library—ready when you need an idea you only half remember.

01

KEEP THE LESSON

Learn from any useful format

Tutorials, lectures, interviews, video essays, language lessons, and practical walkthroughs all belong on the same shelf.
02

SEARCH NATURALLY

Find it the way you remember it

Search with an idea, skill, quote, person, or half-remembered detail. Grey searches titles, summaries, transcripts, and exact moments for the best match.
03

RETURN TO THE SOURCE

Return to the exact moment

Every useful result keeps the original words and timestamp attached, so you can verify it without rewatching everything.

You do not need to organize every video. Save only the ones that teach you something you want to use again.

HOW GREY WORKS

Three steps from watching
to finding it again.

Build a private learning library from the YouTube videos you learn from. It grows only from the sources you choose and the moments you decide matter.

01SAVE

Choose a video worth learning from

Paste a course lesson, tutorial, lecture, explainer, interview, or deep dive you expect to use again.

02ORGANIZE

Keep what you learned and its source

Grey keeps the source, transcript, summary, key ideas, and exact moments. Add your own highlights when an idea matters to you.

03FIND

Find it when you need it

Ask in your own words—an idea, skill, quote, or half-remembered detail. Grey brings back the source and the best matching moment.

PRIVATE BY DEFAULT

Your library is yours.

Export or delete it anytime.

Read the privacy promise ↗

YOUR LEARNING TRAIL, YOUR CHOICE

Recover the lessons hiding in your YouTube history.

Use a Google Takeout export to review what you watched. Grey reads the file inside your browser and lets you choose only the videos that taught you something. Your raw history and everything you skip stay on this device.

Review your YouTube history ↗Or start with one video
01
EXPORT

Download your watch history

Google Takeout gives you a JSON or HTML file.

02
REVIEW LOCALLY

Choose the videos you learned from

Grey reads the file in your browser. Nothing is added automatically.

03
SAVE SELECTIVELY

Keep only what matters

Only videos you choose become memories in Grey.

Your unselected history never leaves this device.

FREE EARLY ACCESS

Free while Grey grows.

Use every current Grey feature at no cost while we learn what genuinely helps self-directed learners. No card, no ads, and no trial countdown.

✓ Save videos you learn from✓ Search in English and Spanish✓ Private by default✓ Export or delete anytime

Current pilot: free, invite-only, and for invited adults age 18 or older.

Start your learning library ↗

START WITH ONE THING YOU’RE LEARNING

Learn it on YouTube.
Find it in Grey.

Save your first video ↗