ESPConnect - ESP32 Firmware Updater

Device Information

No device connected

Connect ESP device to read chip details

⟳ -⌁ - (MAC)

⚙ Flash & Clock

-

Crystal -

▦ Flash Device : -

▣ USB Bridge : -

◴ Connection Baud : - bps

ϟ Feature Set

0 capabilities

-

▦ Package & Revision

Chip Variant-

Package Form Factor-

Revision-

⚙ Embedded Memory

Embedded Flash-

Flash ID-

Flash Manufacturer-

Flash Device-

🛡 Security

Flash Encryptionunknown

Flash Encryption Details-

Flash Encryption Mode-

Secure Bootunknown

Secure Boot Type-

JTAG Protectionunknown

USB Protectionunknown

✦ Peripherals

PWM/LEDC-

🔌 Connection

Connection StatusDisconnected

USB BridgeChoose from browser popup

Connection Baud- bps

Last Firmware File-

Last Operation-

📖 Documentation

Hardware Reference ↗ Datasheet ↗ Technical Reference Manual ↗ Errata ↗ Hardware Design Guidelines ↗

Device information is read from esptool.js connection output. Security fields are best-effort; exact security register decoding depends on chip support.

Firmware Update

Firmware .bin file

Flash Address

Flash Size

Flash Mode

Flash Frequency

Options

Erase full flash before update
Compress while flashing

Waiting for firmware file...

Serial Monitor / Session Log

Send command to device

Add newline (\n) Show sent command in log

Start Serial Monitor first, then type command and click Send Command. Keep Monitor Baud Rate same as Serial.begin(), usually 115200. Enable newline if your ESP32 command parser waits for \n.

About

This is a browser-based ESP firmware updater. It uses Web Serial API and Espressif esptool-js. Run it on HTTPS or localhost in Chrome / Edge. For ESP32-C2/S3/P4 boards, use BOOT mode if automatic reset does not enter bootloader.