Tasmota-ESP-Flasher for Tasmota v13 and later (Safeboot partition scheme)
Tasmota-ESP-Flasher is an app for ESP8266 / ESP32 designed to make flashing Tasmota on ESPs as simple as possible by:
- Pre-built binaries for most used operating systems
- Support for Tasmota factory images
- Hiding all non-essential options for flashing
- All necessary options (bootloader, flash mode, safeboot) are set automatically
- Flashing is lightning fast
- Full ANSI color support for colored terminal output
- Interactive serial monitor with command input support (with history buffer)
The flashing process is done using esptool from espressif.
Installation
-
Check the releases section for your OS.
-
Download and double-click and it'll start.
-
The native Python version can be installed from PyPI:
pip install esp-flasher. Start the GUI byesp_flasher. Alternatively, you can use the command line interface ( typeesp_flasher -hfor 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
Usage Guide
Flash Process
The flashing process is straightforward and consists of a few simple steps:
1. Select Serial Port
Connect your ESP device via USB and select the correct serial port from the dropdown menu.
2. Connect to Device
Click the "Connect" button to establish a connection with your ESP device.
3. Select Firmware
Click "Select Firmware" to choose the matching Tasmota (factory) firmware file (.bin) to the connected espressif MCU.
4. Start Flashing
Click "Flash ESP" to begin the flashing process. The progress bar shows the current status.
5. Flash Complete
Once flashing is complete, you'll see a success message. Your device is now ready to use.
6. WiFi Improv Support
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:
- After flashing your device, keep it connected via USB
- Click the
Improv WiFibutton to launch the Improv client - Click the
Scan Networksbutton to search for available WiFi networks - Double-click the WiFi network you want to connect to
- The
SSIDfield will be automatically filled with the selected network name - Enter your password in the
Passwordfield and click theProvisionbutton - The device will connect to your WiFi network and display the assigned IP address
Benefits:
- 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.
Documentation
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.
Build it yourself
If you want to build this application yourself you need to:
- Install Python >= 3.9
- Download this project and run
pip3 install -e .in the project's root. - Start the GUI using
esp_flasher. Alternatively, you can use the command line interface ( typeesp_flasher -hfor 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.
Mac OSX (compiled binary only for 11 and newer)
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
License
MIT © Otto Winter, Michael Kandziora, Johann Obermeier
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Release files for esp-flasher 4.6.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| esp_flasher-4.6.0.tar.gz | 169.6 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| esp_flasher-4.6.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 369.5 kB
Release files / esp_flasher-4.6.0.tar.gz
| Download URL | esp_flasher-4.6.0.tar.gz |
|---|---|
| Size | 169.6 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
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twine/7.0.0 CPython/3.13.14
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Transparency logRelease files / esp_flasher-4.6.0-py3-none-any.whl
| Download URL | esp_flasher-4.6.0-py3-none-any.whl |
|---|---|
| Size | 199.9 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
7a3c8cdb5abf74e2099ef7d4c6c5ec1364d0b829c4d88ba789f263c1343f63eb
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BLAKE2b-256 checksum How to use checksums |
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| Upload date | |
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Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Sep 29, 2026.
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