z-context icon

z-context

by gwwar · Developer Tools
FeaturedManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

A Chrome DevTools Extension that displays stacking contexts and z-index values in the elements panel

Users
6,000
0 in 30 days
Rating
3.5 / 5
unchanged in 30 days
Ratings
43
0 in 30 days
Store rank
#13K
#11K among extensions
Version
3.0.0
updated 28 Nov 2024

Users

monthly, 3 years
2,0005,0008,000Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 6,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
102643Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 43 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 z-context

Why use it? Browsers support a hierarchy of stacking contexts, rather than a single global one. This means that z-index values are often used incorrectly, and arbitrarily high values get set. By Using Z-Context, you'll know: - If the current element creates a stacking context, and why - What its parent stacking context is - The z-index value -------- v3.0.0 - Update to manifest v3 and update stacking context rules https://github.com/gwwar/z-context/pull/29 v2.1.0 - Includes http protocol to facilitate development use cases https://github.com/gwwar/z-context/pull/23 v2.0.0 - Adds support for inspecting iframes https://github.com/gwwar/z-context/pull/21 https://github.com/gwwar/z-context/pull/22 v1.1.0 - Adds z-index stacking context rules as of 2021. Adds fixes for position sticky and shadow dom, props to roperzh and edenilan! See pulls 10, 17 and 18 at https://github.com/gwwar/z-context. v1.0.4 - fixes will-change case. a stacking context is created for opacity/transform but not other values https://github.com/gwwar/z-context/pull/9 v1.0.3 - fixes display reason for flex-items https://github.com/gwwar/z-context/pull/4 v1.0.2 - adds new z-index rules, fixes a bug when inspecting a shadow dom elements. https://github.com/gwwar/z-context/pull/3 v1.0.1 - fix reason message for non-static positions, props to giuseppeg. https://github.com/gwwar/z-context/pull/1

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months0+0.0%00.00
1 year−1,000−14.3%00.00

Chrome Web Store search rankings

Where z-context appears when people search the store, with the 30 day change
Search phrasePosition30 days
reason#25−7
pull#51−4

Version history

5 versions recorded
3.0.028 Nov 2024
2.1.027 Jan 2022
2.0.015 Nov 2021
1.1.03 Nov 2021
1.0.417 Feb 2018

Details

Category
Developer Tools
First seen
17 Feb 2018
Size
30 KB
Languages
en
Pricing
Free
Extension ID
jigamimbjojkdgnlldajknogfgncplbh

Permissions and risk

Minimal riskimpact 2, likelihood 0

Alternatives to z-context

Extensions that rank for the same store searches or share the Developer Tools category, ordered by users