Idle
Connect first.
0%
Connect ESP in boot mode
Boot mode needed
Hold BOOT, tap RESET, release BOOT when Connecting starts. Then press Connect again.
Flash
Firmware files
Drop BIN files here
or use Add Row and choose files manually.
| Address | File | Size | Status |
|---|
Read / Backup
Flash region
Progress0%
Speed-
Read0 B
Elapsed0s
Non-volatile storage
NVS Explorer
Read the ESP-IDF partition table, extract NVS data and decode stored namespaces, keys and values. All decoding happens locally in your browser.
Partition table offset
ESP-IDF default: 0x8000
Connect an ESP, then extract its NVS partition.
Decoded keys
No data extracted yet.
NVS may contain Wi-Fi passwords, tokens and other secrets. Downloads stay on your computer. Encrypted NVS cannot be decoded without the appropriate keys.
File system / Backup
LittleFS Explorer
Read a LittleFS partition directly from ESP flash, browse its files and folders, or download the complete tree as ZIP. Read-only, entirely local.
Partition table offset
ESP-IDF default: 0x8000
Connect an ESP, then extract its LittleFS filesystem.
Files and folders
No files extracted yet.
Some data partitions use SPIFFS or another format. LittleFS needs a valid superblock; encrypted flash or unsupported layouts cannot be decoded. Raw BIN remains available after extraction.
Merge Firmware
Offline image builder
Drop ESP32-S3 parts here
bootloader @ 0x0, partitions @ 0x8000, firmware @ 0x10000.
| Address | File | Size | Status |
|---|
Erase
Entire flash
- Device
- Not connected
- Operation
- Full chip erase
- Confirmation
- Required before erase starts