What is the longest string that can be stored using firebase?

Question

Whats the max number of characters in a string I can save in firebase? Is it unlimited? At what point will It get too slow?

Answer 1

Per the Firebase docs, the maximum size of a child value is 10mb (UTF-8 encoded).

UTF-8 uses 1 to 4 bytes per character, so a 10mb string could contain between 2.5 million - 10 million characters.