Fast & Reliable
High-performance ESP Flasher for Android with stub loader and compression support.
ANDROID FIELD TOOL
ESPFlash Flash ESP32Firmware Anywhere
Flash ESP32/ESP8266 firmware from Android via USB OTG, or update wirelessly over Wi-Fi. OTA currently supports ArduinoOTA. No PC required.
Get on Google Play↗ View roadmapUp nextESP32-S31 support
Privacy policy Hardware test report · v1.3.6 
01 / CAPABILITIES
Key Features
Serial Monitor
Built-in serial terminal to debug your ESP32 application on the go.
Simple Interface
The easiest ESPFlash tool for developers. Configure baud rate, erase mode, and flash effortlessly.
Wide Chip Support
Supports nearly all chips including ESP32-S3, C3, and ESP8266. The only ESP32 Flasher you need.
Dump Firmware (Backup)
Read and back up existing firmware. Perfect for cloning devices without a PC.
OTA updates · ArduinoOTA
Send firmware from Android over Wi-Fi without reconnecting USB. OTA currently supports ArduinoOTA for devices with ArduinoOTA enabled in their firmware.
02 / ROADMAP
Product roadmap
What comes next, and what we have delivered.
- Planned
ESP32-S31 support
Extend ESPFlash support to the ESP32-S31 chip.
- Planned
BLE OTA support
Wireless firmware updates over Bluetooth Low Energy are planned.
- Planned
iOS version
Bring ESPFlash to iOS.
- Shipped
OTA support · ArduinoOTA
Firmware updates over Wi-Fi using ArduinoOTA are available.
Plans may evolve as development progresses. Release dates are yet to be announced.
03 / IN USE
App Screenshots
04 / COMPATIBILITY
Supported Devices
Native USB
ESP8266, ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C5, ESP32-C6, ESP32-P4, ESP32-H2
USB-to-UART Adapter
Traditional ESP32 / ESP8266 boards via USB-to-UART adapters.
“Pretty handy app for flashing.”— Harshil Jasani
“Amazing app for the people who are interested in firmware.”— Vinita Rajaram
05 / SUPPORT
Frequently Asked Questions
How to flash ESP32 from Android?+
You can easily flash ESP32 from Android using the ESPFlash app. Simply connect your ESP32 board via USB OTG, select your firmware file, and tap flash.
Is there an ESP Flasher APK available?+
Yes, ESPFlash is the leading ESP Flasher APK. It supports flashing, dumping, and serial monitoring directly from your Android device.
Can I use this ESP Flash Tool without a PC?+
Absolutely. ESPFlash is a complete standalone ESP Flash Tool. You don't need a computer or cloud flashing tools.
Which chips are supported?+
We support a wide range of chips including ESP32, ESP8266, ESP32-S2, S3, C3, and more.
Which OTA update methods does ESPFlash support?+
OTA currently supports ArduinoOTA. First flash firmware that integrates and enables ArduinoOTA over USB. Connect your phone and device to the same Wi-Fi LAN, then use ESPFlash to send a compatible application firmware .bin file. Keep ArduinoOTA enabled in subsequent firmware to continue updating wirelessly.
READY / 01