Paste one useful video. Grey builds the real memory first—then you decide whether it is worth keeping.Start with one useful video. Grey turns it into a private memory you can return to later.
One memory, no accountPrivate 24-hour previewNo card
Free early accessPrivate by defaultNo card
TRY ONE MEMORY · NO ACCOUNT
See the result before you sign in.
Paste one useful YouTube video. Grey will find the key ideas and exact moments for you.
Paste a valid YouTube video link.
See the actual result first. Sign in only if you want to keep it or make another.
No accountPrivate previewAvailable only in this tab for up to 24 hours
START WITH ONE USEFUL VIDEO
Create your first private memory.
Sign in securely, paste the link, and Grey will guide you through the result.
Free early access. Choose Google or ChatGPT. Grey never receives your provider password.
FICTIONAL EXAMPLE · NO ACCOUNTThis is what Grey gives back
I REMEMBER…
Where did they explain why I forget good ideas?
18:42
GREY FOUND THE SOURCE
Why Your Brain Forgets Good Ideas
“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.
Try another memory:
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.
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.