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About this tool
Consistent characters need more than a name — especially when AI drafts invent new traits mid-chapter. Paste your rough notes and Kestrel — Free expands them into a structured profile with voice, goals, relationships, and continuity flags you can paste into Story Studio or your series bible. Always review output; treat it as a draft that must match your canon.
What you can do
- Structured profile with appearance, voice, goals, flaws, and relationships
- Expands rough notes into story-bible-ready sections
- Continuity flags for secrets, wounds, and arc turning points
- Copy-ready output for series bible or Story Studio character fields
- Pairs with character arc worksheet and AI character portrait generator
- Kestrel — Free with several generations per device
- Only your character notes are sent — not your full manuscript
Structure notes into bible-ready character cards
Loose notes become contradictory chapters. Generate a structured profile — voice, goals, relationships, continuity flags — then paste into Story Studio or your series bible before the next drafting session.
Series bible worksheet · Character portrait · Consistency checker
How to use it
- Enter character name and role — protagonist, antagonist, or supporting.
- Paste everything you know — appearance, flaws, secrets, relationships, and speech patterns.
- Click Generate profile and review the structured output.
- Edit any details that contradict your canon or feel too generic.
- Copy into your series bible or Story Studio character notes before drafting.
Tips for fiction authors
- Feed the profile into Story Studio character fields for better chapter generation — AI prose follows defined voice and goals more reliably.
- Start with the character arc worksheet for want, need, and lie, then use this tool to expand into full bible entries.
- Regenerate when your draft reveals new traits — but do not let AI contradict established canon without a deliberate retcon.
- Include speech tics and vocabulary level in your input notes. Kestrel — Free produces stronger voice sections when you give concrete examples.
- Pair with the AI character portrait generator once appearance lines are locked for visual reference.
Related guides
Common questions
Does it invent details not in my notes?
It expands your notes with plausible specifics but should not contradict what you provided. Always review before adding to your bible.
Is this free?
Yes. Kestrel — Free provides several generations per device. Sign in to save profiles to your account.
Is my manuscript uploaded?
No. Only the character name and notes you paste are sent for generation.
How does this help Story Studio?
Paste profiles into project character fields so AI chapter generation respects voice, goals, and relationships.
Can I use this for antagonists?
Yes. Enter role as antagonist and include motivation, methods, and relationship to the protagonist for richer profiles.
Is this a character bio generator or a character profile maker?
Both names fit: you give it a name, a role and whatever notes you already have, and it returns a structured profile — appearance, voice, goals, flaws, relationships and continuity flags. What it will not do is invent a character from nothing: with an empty notes box there is nothing to expand, so give it a line or two to work from.
How many free character profiles do I get?
Eight in total, counted by IP address — not eight a day — and up to 15 in any hour. No account is needed to use them, and signing in saves your profiles to your account rather than adding more.
Can it generate a character arc?
The profile covers goals, flaws and relationships, which is most of an arc in shorthand. To plan the arc itself — external want, internal need, the lie the character believes, the wound behind it — use the free Character Arc Worksheet, then paste the profile beside it in your series bible.
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