Arduino plugin which packs sketch data folder into SPIFFS filesystem image, and uploads the image to ESP32 flash memory.


  • Make sure you use one of the supported versions of Arduino IDE and have ESP32 core installed.
  • Download the tool archive 
  • In your Arduino sketchbook directory, create tools directory if it doesn't exist yet.
  • Unpack the tool into tools directory (the path will look like <home_dir>/Arduino/tools/ESP32FS/tool/esp32fs.jar).
  • Restart Arduino IDE.

On the OS X create the tools directory in ~/Documents/Arduino/ and unpack the files there


  • Open a sketch (or create a new one and save it).

  • Go to sketch directory (choose Sketch > Show Sketch Folder).

  • Create a directory named data and any files you want in the file system there.

  • Make sure you have selected a board, port, and closed Serial Monitor.

  • Select Tools > ESP32 Sketch Data Upload menu item. This should start uploading the files into ESP32 flash file system.

    When done, IDE status bar will display SPIFFS Image Uploaded message. Might take a few minutes for large file system sizes.


Arduino ESP32 filesystem uploader
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