ESP Web Tools for Custom offline firmware.
Overview
This is a customized version of ESP Web Tools which supports reading firmware manifest from local storage.
Changes
The manifest JSON can contain BASE64 encoded firmware binary as data field instead of specifying the source path of the binary as path field.
And the manifest attribute of the esp-web-install-button can hold a manifest JSON object itself instead of the manifest JSON URL.
It enables using a manifest JSON uploaded as a form data to write a firmware.