Nixie tube clock

Nixie tubes were glowing number displays from the 1950s–70s: each glass tube holds stacked metal digits that light up orange when powered. This online nixie clock recreates that warm glow, with the unlit cathodes faintly visible behind the lit one.

Toggle the anode mesh, the tube sockets and the unlit digits, and tune the glow colour — no soldering required.

Customise the nixie tube clock

• Background
• Glow
• Show unlit cathodes
• Anode mesh
• Show tube sockets

How to use

• Switch clocks with ← →, by clicking or tapping the sides of the screen, or by swiping. The dice button (R) jumps to a random clock.
• Go full screen with the button in the top-right corner, a double-click or F.
• Open Customise (S) to change colours, fonts, 12/24-hour time, seconds, date and time zone. Settings are saved on this device.

Questions

What is a nixie tube?

A gas-filled glass tube with number-shaped cathodes stacked inside. Applying a voltage to one makes it glow, which made nixie tubes a popular display in early calculators and lab equipment.

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