Well, After drafting 5V version of the tool, it wasn't hard to draw for 3.3V Version. All i done was, just made the extra copy of the schema.

ESP8266 and ESP-01/12 are 3.3V-only chips. That's how they start.

All I have to do was to, just remove MOSFETs, LDO and couple of R's & C's and done.

Just check it out.

Sorry for the empty space.

DOWNLOAD FILES HERE.