See also the archive page for Web Developer Mini.

Web Developer

by Chris Pederick · chrispederick.com · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Adds a toolbar button with various web developer tools.

Users

0 in 30 days

Rating

4.3 / 5

−0.17 in 30 days

Ratings

2,832

+1 in 30 days

Store rank

#289

#270 among extensions

Version

3.0.1

updated 29 Jun 2024

Users

monthly, 3 years

Latest, 15 Oct 2026: 1,000,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 15 Oct 2026: 2,832 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Web Developer

The Web Developer extension adds a toolbar button to the browser with various web developer tools. This is the official port of the Web Developer extension for Firefox. -------------------- The best place for support is not in the reviews section below, but on the Web Developer site in the help: https://chrispederick.com/work/web-developer/help/ Also available there are a full set of release notes: https://chrispederick.com/work/web-developer/history/chrome/

Growth

Window	Change	Ratings	Rating
7 days	+0.0%	−1	−0.17
30 days	+0.0%	+1	−0.17
6 months	+0.0%	+1	−0.17
1 year	+0.0%	−5	−0.17

Chrome Web Store search rankings

Where Web Developer appears when people search the store, with the 30 day change

Search phrase	Position	30 days
web	#1	0
developer	#1	0
developer tools	#2	0
toolbar	#4	+3
chrome extension	#4	+1
extension	#4	+2
chrome	#5	+12
web store	#7	+34
details	#11	+13
tools	#12	new
browser extension	#12	+8
tool	#13	+53
google chrome	#62	new
website usage	#65	new