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
Latest, 15 Oct 2026:6,000 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 years
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
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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
Window
Users
Change
Ratings
Rating
7 days
0
+0.0%
0
0.00
30 days
0
+0.0%
0
0.00
6 months
0
+0.0%
0
0.00
1 year
−1,000
−14.3%
0
0.00
Chrome Web Store search rankings
Where z-context appears when people search the store, with the 30 day change