HookVault
Add to Chrome
Spot it
Browse YouTube and X as usual. Outlier badges show which videos beat a channel's normal numbers by 3×, 5× or 10×.
Chrome extension for creators
Find what works.
Save it.
Turn it into posts.
HookVault spots the videos that beat a channel's average, keeps every great hook in one swipe file, and rewrites any video into a thread, a LinkedIn post and a batch of titles.
No account needed · Your library never leaves your browser
Outlier finder · try it
Most videos do average numbers.
The ones that don't are the lesson.
On any YouTube channel, HookVault compares each video with the channel's median views and badges the breakouts. Drag the slider to see what it would flag on this sample channel.
1.1Kchannel median
2outliers found
How it works
From "why did that blow up?" to your own post in three steps
Save it
One click stores the title, views, likes and link. Add tags and a note on why it worked, then search it all later.
Repurpose it
Hit Repurpose on a video. The transcript is pulled in for you, and the Studio writes each format in your tone and language.
Repurpose Studio
One video. Six formats. Your voice.
A sample of what the Studio writes from a single 12-minute travel video. Pick a format.
I QUIT MY JOB
I Quit My Job to Ride Across IndiaSource · 12 min video · transcript fetched automatically
Sample output for illustration. Results depend on your source and the AI model you choose.
Built for the way creators work
Small details that save you hours
Private by design
Your swipe file lives in your browser, not on our servers. There's no account to create and nothing to sync unless you export it yourself.
Bring any AI
Use your own Anthropic or OpenAI key, OpenRouter, Groq, or a local model through Ollama. Pro adds hosted AI with no key at all.
Tags, notes, search
Label saves with #hooks #thumbnail and jot down why each one worked.
Reads lakh and crore
View counts are understood in Indian formats too, so "1.2 lakh views" is compared correctly.
Your data, exportable
Download everything as CSV or JSON whenever you like, and import it on another computer.
Works where you already are
Buttons appear right on YouTube videos, Shorts, channel pages and X posts. Right-click saves any other page or selected text.
Pricing
Free to start. Pro when it's paying for itself.
Free
$0
For getting started
- 50 saved items
- Outlier finder
- 5 AI repurposes a month (your own API key)
- CSV and JSON export
Most useful
Pro
$12/month
Billed monthly. Cancel anytime.
- Unlimited saves
- Unlimited repurposes
- Hosted AI, no API key needed
- Use on multiple browsers
FAQ
Good questions
What exactly is an "outlier"?
A video with far more views than that channel normally gets. HookVault takes the median views of the videos on the page and badges anything at or above your threshold (3× by default). A 10× outlier on a small channel is often a better idea to study than an average video on a huge one.
Do I need an API key?
Only for AI repurposing on the Free plan. Saving and the outlier finder work without one. For the Studio you can paste an Anthropic or OpenAI-compatible key, point it at a local model, or use Pro's hosted AI with no key.
Where is my library stored?
In your browser's local storage on your own computer. We never receive your saved items. Export to CSV or JSON to back them up or move them. See the privacy policy for the details.
Which sites does it work on?
YouTube (videos, Shorts and channel pages) and X have built-in buttons. Any other page can be saved from the toolbar popup or the right-click menu.
What if a video has no transcript?
The Studio opens anyway. Paste your script, notes or any text and repurpose that instead.
Can I cancel Pro?
Yes, anytime from Settings → Manage billing. You keep Pro until the end of the period you paid for, and your library stays with you on Free.