AO3 Persona Shift by MintDesco

Make every AO3 fic feel personal.
Tired of reading y/n, [name], or (reader) in your favorite fanfics? AO3 Name Replacer lets you replace those placeholders with any word you choose — automatically, as you read.
Features
✦ Replace any word or phrase, not just y/n — fully flexible
✦ Per-story settings — different rules saved for each AO3 story ID
✦ Default rules — set once, apply everywhere when no story-specific rules exist
✦ Case sensitive toggle — control exactly how matching works
✦ Live updates — changes apply instantly without refreshing the page
✦ Privacy first — all data stored locally in your browser, never sent anywhere