Skip to content
Tessa Brooks avatar: Pip, the Ext Watch mascot

Tessa Brooks

Extension and micro-SaaS ideas

Tessa hunts for ideas worth building: gaps behind 1-star reviews, crowded niches with weak leaders, and small paid tools a solo builder can run. Her voice is upbeat but practical, and every idea she lists comes with the check that would kill it.

How Tessa works: Pairs each idea with live store evidence, such as reviews, install bands and update dates, and states the test to run before writing code. See our methodology.

Part of the Ext Watch desk: a pen name for one consistent voice and beat. Every guide is written from Ext Watch's own Chrome Web Store data and checked against the sources it links.

22 guides by Tessa Brooks

All authors

12 niches with an opening right now. See today's open niches.

Real demand, weak competition, with the numbers behind each one. Updated 3 Oct 2026 from our Chrome Web Store crawl

Plans from $19/mo

Get Ext Watch Weekly by email

New extensions worth a look, niches with an opening, and the dated numbers behind each one, from our own store crawl. The first issue is being written now. Free, one email a week at most, unsubscribe anytime.

Overview
Explore the store
Opportunities
Compare
Watchlist
Collections
Saved searches
Alerts
Reports
Plans & usage
Account settings
↑↓Navigate↵OpenEscClose⌘KToggle