Tasmota-ESP-Flasher is an app for ESP8266 / ESP32 designed to make flashing Tasmota on ESPs as simple as possible by:
The flashing process is done using esptool from espressif.
Download and double-click and it'll start.
The native Python version can be installed from PyPI: pip install esp-flasher.
Start the GUI by esp_flasher. Alternatively, you can use the command line interface ( type esp_flasher -h for info)
Only Linux:
sudo usermod -a -G dialout $(whoami)
after the command has fired and a relogin the Flasher can access the serial ports and flash away
The flashing process is straightforward and consists of a few simple steps:
Connect your ESP device via USB and select the correct serial port from the dropdown menu.
Click the "Connect" button to establish a connection with your ESP device.
Click "Select Firmware" to choose the matching Tasmota (factory) firmware file (.bin) to the connected espressif MCU.
Click "Flash ESP" to begin the flashing process. The progress bar shows the current status.
Once flashing is complete, you'll see a success message. Your device is now ready to use.

The ESP Flasher includes WiFi Improv protocol support, allowing you to configure WiFi credentials on your ESP device without connecting to a web interface or access point.

How to use WiFi Improv:
Improv WiFi button to launch the Improv clientScan Networks button to search for available WiFi networksSSID field will be automatically filled with the selected network namePassword field and click the Provision buttonBenefits: - No need to connect to a temporary access point - Secure credential transfer over USB - Faster initial setup process - Works immediately after flashing
For more details on the Improv protocol, visit Improv WiFi.
Tasmota ESP Flasher and Tasmota ESP Flasher Wiki
In the odd case of your antivirus going haywire over that application, it's a false positive.
If you want to build this application yourself you need to:
pip3 install -e . in the project's root.esp_flasher. Alternatively, you can use the command line interface (
type esp_flasher -h for info)To create a standalone binary, use PyInstaller with the provided spec file:
pip install -r requirements.txt -r requirements_build.txt
pyinstaller ESP-Flasher.spec
For detailed build instructions, see build-instructions.md.
Driver maybe needed for Mac OSx.
Info: https://www.silabs.com/community/interface/forum.topic.html/vcp_driver_for_macosbigsur110x-krlP
Driver: https://www.silabs.com/documents/public/software/Mac_OSX_VCP_Driver.zip
MIT © Otto Winter, Michael Kandziora, Johann Obermeier
$ claude mcp add ESP_Flasher \
-- python -m otcore.mcp_server <graph>