Password generators are useful because humans are bad at inventing strong random strings repeatedly. A generator can create longer and less predictable combinations much faster.
What makes a password stronger
Length usually matters more than clever substitutions. A longer random password is often stronger than a short one with mixed symbols.
What generators do not solve
Generating a password is only part of the process. Safe storage and proper account hygiene are just as important.
Good use case
Browser generators are helpful for temporary credentials, test accounts, and quick password suggestions during setup workflows.