Upcoming SpaceX launches with a live countdown for the mission you pick.
Users
4
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#266K
#222K among extensions
Version
1.0
updated 19 Aug 2026
Users
monthly, 2 months
Latest, 15 Oct 2026:4 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 months
Latest, 15 Oct 2026:0 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 T-0 — SpaceX Countdown
T-0 shows the next SpaceX launches in a simple popup.
Choose a mission and get a live countdown to NET. The toolbar badge stays updated so you can see time remaining without opening the popup.
Also included:
• Launch status (Go, TBD, Hold)
• Rocket, pad, and local time
• Refresh for the latest schedule
• Watch livestream when a link is available
Launch times come from Launch Library 2 and are cached to stay within API limits. The countdown itself runs locally on your machine.
Unofficial fan tool. Not affiliated with SpaceX.
