VoxStick Web Installer

Flash VoxStick firmware to your M5Stack StickS3 directly from the browser. No ESP-IDF, Python, or esptool setup required.

Use desktop Chrome or Microsoft Edge. Open this page over HTTPS or localhost.

The StickS3 may not reboot automatically after flashing. Unplug USB, double-press the side button to power off, then plug USB back in.

Flashing Steps

Computer: open this page in desktop Chrome or Microsoft Edge.
Hardware: connect the StickS3 to the computer with a data-capable USB-C cable.
Hardware: hold the StickS3 side reset/PWR button for about 2 seconds. Release it when the internal green LED blinks.
This page: click the “Connect and flash VoxStick” button in the flashing panel. When the browser shows the serial-port picker, choose the StickS3 port and approve the install.
Hardware: when the page reports completion, unplug USB, double-press the StickS3 side button to power it off, then plug USB back in to boot the new firmware.
Computer OS: after the firmware boots, select StickS3-Mic in the system sound input settings.
WeType / dictation app: open voice-input shortcut settings, enable hands-free mode, then tap the StickS3 front button to bind Ctrl+F12. VoxStick sends Left Ctrl+F12; macOS may show it as ⌃F12.
Optional config: open the VoxStick config page to change flat auto-mute and button shortcut keys.

No port listed: use desktop Chrome/Edge and try another USB-C data cable.
Still missing: enter download mode again by holding the side button for about 2 seconds.
If VoxStick firmware is already running, bash tools/trigger-download.sh can reboot it into download mode.
Command-line fallback: esptool.py --chip esp32s3 write_flash 0x0 voxstick-full.bin

Product photos and button behavior reference the official M5Stack StickS3 documentation. Source: github.com/openbrt/voxstick