LxveFlasher
Flash in your browser
Plug an ESP32 into a USB port, pick the firmware .bin you downloaded, and flash it — no install, nothing uploaded. The firmware stays on your machine; the write happens locally over USB.
Your browser can't talk to USB devices
In-browser flashing needs the Web Serial API, which today ships only in desktop Chrome, Edge, and Opera. On anything else, use the desktop app instead — same flashing, more firmware.
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1 Pick your chip
Not sure? The board's product page lists its chip. LxveFlasher also reads the chip from the board once connected.
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2 Choose the firmware
Download the merged
.binfrom the releases page (or the board's firmware repo), then select it here. It is never uploaded anywhere. -
3 Flash
Only flash firmware you trust, for a board you own. A wrong image can brick a board until you re-flash it; the erase/write is real. LxveFlasher writes the image you choose — it never sends radio frames.