Cached ESP32 bootloader binaries for BrewFlasher
This site hosts pre-compiled bootloader binaries used by BrewFlasher when flashing firmware to ESP32-family microcontrollers. These files are not intended to be downloaded directly — they are fetched automatically by BrewFlasher as needed.
Binaries are available for the following chip families:
The bootloaders are compiled by Espressif as part of each Arduino
package release. The original .elf files are converted
to .bin format using esptool and cached
here so that BrewFlasher can retrieve them reliably.