The Second Brain for Writers
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Built around the writer, not the AI
Every feature exists to support your creative process — not to replace it.
Your world. Your rules.
Build character pages, location maps, world rules, and timelines the way you think about your story. Canonvault stores what you define — it never rewrites it, never auto-updates it, never assumes anything you didn't tell it.
Analysis that runs when you ask. Never before.
There are no passive underlines, no background scanning, no AI watching you type. When you're ready, you click Analyse. It reads your manuscript against your story bible and returns a structured list of facts that contradict each other. That's all it does.
The AI never writes
Not one word. No suggestions, no rewrites, no autocomplete. Every sentence in your manuscript is yours.
Story order and narrative order
Place events on a visual timeline exactly as you define them — when they happen in the world, and when the reader discovers them.
When you publish, we delete everything
Your manuscript exports to your machine. Our copy is permanently deleted. No archive, no backup, no exceptions.
This is what Canonvault finds.
Chapter 3 describes Amara's eyes as green. Chapter 17 describes them as brown.
Zayan knows the vault location in Ch.6 but your notes say he only learns this in Ch.14.
Dara uses the flame in Ch.11 & your world rules state only northern-born characters can use it.
The locked drawer in the study is mentioned in Ch.2 and Ch.5 but never explained.
Canonvault never rewrites, removes, or suggests fixes. It only surfaces inconsistencies and the contradictions.
The Tooling Landscape
Where Canonvault fits in your writing process.
FOCUS: STRUCTURE
Scrivener
Organises your messy drafts into structured chapters and scenes.
FOCUS: SENTENCE
Grammarly
Fixes your grammar, punctuation, and tone at the sentence level.
FOCUS: CONTINUITY
Canonvault
Reads your entire story, remembers every fact, and flags logic gaps.
FOCUS: GENERATION
Sudowrite
Generates content based on your prompts using AI.
(Note: many literary authors reject AI generation)
Canonvault is built to support authors, not replace them.
When you're done, your story comes home.
Most tools keep your work on their servers indefinitely. Canonvault is different. When you're ready to publish, we hand everything back and delete our copy. Permanently.
Ready to publish
Click when you feel ready. Nothing happens yet — you can still go back.
Final analysis runs
One last check of your manuscript against your story bible. Read the results at your own pace.
Final edit mode
Make any last changes. No time limit. Exit back to writing any time — no consequences.
Choose what to export
Select what comes with you — manuscript, named drafts, story bible, analysis reports, notes.
Your files download. We delete everything.
Your zip downloads to your machine. Then Canonvault permanently deletes every file, every bible entry, every analysis — nothing remains on our servers.
Not archived. Not anonymised. Not stored 'just in case.' Deleted. Because your manuscript belongs to you.
Start free. Upgrade when you're ready.
Free
Free forever
- 1 manuscript, up to 20,000 words
- 3 analysis runs per month
- Continuity conflicts only
- Up to 3 character pages in your bible
- 30-day chapter revision history
Pro
Billed monthly · $144/year
- Unlimited manuscripts and word count
- Unlimited analysis runs
- All four analysis types — conflicts, logic gaps, world rules, unresolved setups
- Full story bible — characters, locations, world rules, timeline
- World query ("Who knows about the vault?")
- Auto-extract bible from existing manuscript
- Named draft versions — unlimited
- 90-day chapter revision history
- Analysis scope selector
- Full analysis history
- Ready to publish — export everything, then we delete our copy permanently
No credit card required for free tier.
Our Commitment