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Free Tool
Character Bible Builder
Fleshing out a character? Use this rapid profiler to define their core internal conflict in seconds.
Core Identity
Define your character to see their arc
Visualize Them?
KDP Sentinel Pro's AI Character Avatar Generator creates 4k portraits of your characters instantly.
Generate PortraitsCharacter Building Tips
What is a 'Fatal Flaw'?
A fatal flaw is a personality trait that prevents the character from achieving their goal. In a good story, the character must overcome this flaw to succeed (e.g. fear, pride, shyness).
Do I need a character bible?
Yes/ For a series, it's essential. You don't want to accidentally change a character's eye color or backstory between Book 1 and Book 3.
Advanced Story Tools
Write Bestselling Fiction.
Upgrade to KDP Sentinel Pro for full plot visualizers, timeline trackers, and relationship maps.
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