UARTLab

by LarryLiu · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

UART / serial debug portal using the Web Serial API.

Users

+11 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#157K

#131K among extensions

Version

1.1.2

updated 4 Sep 2026

Users

monthly, 1 months

Latest, 16 Oct 2026: 18 usersMove the mouse over the chart for any month

Ratings count

monthly, 1 months

Latest, 16 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 UARTLab

UARTLab is a browser-based UART debug tool for Chrome and Edge. It uses the Web Serial API so you can talk to COM ports without installing a separate terminal. Features • Add one or more serial ports, or use the built-in simulator • View received data as ASCII, HEX, DEC, or BIN • Optional port name and timestamp on each line • Line break by newline, CR, custom delimiter, idle time, or raw stream • Send text or hex, with optional line endings • Saved commands, each aimed at a chosen port • Repeat-send a saved command on a timer • Save the on-screen log or captured raw bytes on your computer