Screen recordersEvery rival in one watchlist.
Track the store. Find your next build.
Research the whole Chrome Web Store, about 280,000 extensions, before you build. See what’s growing, what’s been abandoned, and what your competitors just changed.
Plans from $19 a month. Cancel any time.
Hi, I’m Pip!
Check your extension
Paste your store link. We show up to two dated facts about your listing and its closest rivals, from our own store checks. No signup needed.
From a whole store
to your shortlist.
Three things you can do on day one.
Size up a market.
Pick a niche and see every extension in it: users, ratings, and when each was last updated.
Grammarly≈41M users
Quillbot≈6M users
LanguageTool≈2M users
Follow your rivals.
Save your extension and its rivals. We email you a summary of what changed.
Grammarly≈41M usersQuillbot≈6M users
Find your angle.
Compare rivals side by side, then read what their users complain about in the reviews.
What’s new.
What’s moving.
What’s missing.
New launches
Extensions that just reached the store. Catch a new rival early, or see which ideas other builders are betting on.
Ad Block Ghost - Light and agile protection≈200K users
WorkBuddy≈40K users
Bulk Downloader for Instagram - Download Video, Story, Reels & Photo≈7K users
Your product.
Your competitors.
One clear view.
Stop checking store pages by hand. Add the extensions you care about and we email you a summary of what changed.
- Your extension. Watch your users, rating and reviews over time.
- Your rivals. Know when they ship an update, gain users, or slip in ratings.
- Your collections. Group a market, a client’s niche, or an idea you’re still testing.
Password managersA collection
NordPass® Password Manager & Digital Vault≈9M users
Avira Password Manager≈8M users
LastPass≈8M users
Tab toolsA watchlist
JSON Viewer ProOne listing, examined
- Users
- ≈300K
- Rating
The facts.
With their limits.
- We read the store ourselves.
Every number comes from the public listing page, and we re-check the whole store about every 2 days.
- User numbers are approximate.
The store only shows rough user numbers, so we mark them with ≈. Every number shows the date we checked it.
- We can’t see revenue.
No store page can. We show signs that an extension charges money, like a pricing page, and leave the judgement to you.
Simple plans.
Cancel any time.
Try Plus free for 3 days. Pay monthly, or pay yearly and get 2 months free. Change or cancel from your billing page whenever you like.
You’ll create your account right after checkout.
Plus
For researching your next extension.
$19/ month
Billed monthly.
Start 3-day free trial
Free for 3 days, then $19/month. Cancel anytime before it ends and pay nothing.
- 3 full research reports a month
- 25 watched extensions
Plus includes:
- Every opening, the day we find it
- A daily email of what changed
- Every written review, search and filter
- A year of growth history
- Compare up to 5 side by side
- Build list with AI coding tool briefs
Best for most builders
Pro
For builders who research with an AI assistant.
$49/ month
Billed monthly.
- 10 full research reports a month
- 1,000 watched extensions
Everything in Plus, plus:
- Connect Claude, ChatGPT or Cursor
- 50 extensions of your choice checked about 4 times a day
- Premium collections with launch dates
- All the growth history we have
- CSV export
Max
For small teams and heavy research.
$149/ month
Billed monthly.
Get Max
$149 a month is about 3% of $5k, 1.5% of $10k or 0.75% of $20k in monthly revenue; about $124 a month when billed yearly.
- 40 full research reports a month
- 2,500 watched extensions
- 3 seats: you and 2 teammates
Everything in Pro, plus:
- Shared reports and credits, private lists
- 200 extensions of your choice checked about 4 times a day
- 100 searches, collections and alert rules
- CSV export up to 25,000 rows a month
Ask within 7 days of your first payment and we refund it in full, no questions asked. On a yearly plan, ask within 30 days of paying and we refund the part of the year you have not used. A refund ends the plan straight away. One refund per customer in any 12 months. Refund policy
| What you get | Plus$19 / month | Pro$49 / month | Max$149 / month |
|---|---|---|---|
| Full research reports a month | 3 | 10 | 40 |
| Watched extensions | 25 | 1,000 | 2,500 |
| Extensions of your choice, checked about 4 times a day | 50 | 200 | |
| AI assistant credits a month | 3,000 | 15,000 | |
| Seats | 1 | 1 | 3 |
| Growth history | A year | All we have | All we have |
| Premium collections | |||
| CSV export, rows a month | 5,000 | 25,000 | |
| Saved searches, collections, alert rules | 10 each | 50 each | 100 each |
Let your AI assistant look things up for you.
Connect AI assistants like Claude, ChatGPT or Cursor to Ext Watch (this uses a standard called MCP). Then just ask about any extension and get answers from our own store checks, each with the date we saw it. It comes with Pro and Max.
What is Ext Watch?
A research tool for people who build Chrome extensions. It tracks the whole Chrome Web Store, so you can find extension ideas, follow your competitors, and check a market before you build.
Is it really the whole store, and how fresh is it?
Yes. We track about 280,000 extensions, not a sample, and we re-check the whole store about every 2 days. The store rounds user counts, so treat those as approximate.
Can I see launch dates and growth history?
Yes, once you’re a member. Public pages only show a rough age. Members see when an extension launched and how its users and ratings have changed. Plus shows a year of history; Pro and Max show all we have.
What is a full research report?
A deep look at one extension: an AI summary, market research (search demand, website traffic, pricing and competitors) and a PDF to keep. Plus includes 3 a month, Pro 10 and Max 40. Extra reports are $5 each, and we only charge after you confirm.
How much does it cost, and can I cancel?
Plus is $19 a month, Pro $49 and Max $149. Plus comes with a 3-day free trial: cancel before it ends and you pay nothing. Pay yearly and get 2 months free. Cancel any time from your billing page; your plan stays active until the end of the period you paid for.
Can my team use it?
Yes, on Max. It includes 3 seats: you and 2 teammates. Reports and AI assistant credits are shared, and each person’s lists stay private.
What can’t Ext Watch tell me?
What an extension earns. No store listing proves revenue. We show signs that an extension charges money, such as a pricing page, but you still need to talk to real users and test the idea yourself.
Is it a Chrome extension I install?
No. Ext Watch is a website you sign in to, with nothing to install.
Can I get email alerts?
Yes. Follow the extensions you care about and we email you a daily summary of what changed.
Does it work with Claude, ChatGPT or Cursor?
Yes, on Pro and Max. Connect your AI assistant and ask about any extension or niche; it answers from our store data instead of guessing. On every plan, the Build list gives you a brief to paste into your AI coding tool.
The Ext Watch Dispatch
What moved in the store.
- New and risingExtensions worth a look.
- One niche, up closeWho’s in it, who’s slipping.
- The numbersWhere each one came from.
A closer look.
Worth opening.
Not ready to pay? Get the extensions and niches we found interesting, with the numbers behind them, by email.
Your next idea
is worth a closer look.
Openings come and go as the store changes. See what’s open today.
Start your radar