Plot Hole Checker
How to find plot holes and continuity errors in a novel, by hand and with software.
AxiomStory is our pick for fantasy novels because it builds the world wiki from your chapters and flags when a rule of magic or a map detail changes. World Anvil and similar wiki tools suit worldbuilding before you write, but you fill them in by hand.
AxiomStory publishes this reference. The pick reflects the criteria on this page. It is not a measured ranking of every tool.
Some writers build the world before chapter one. Others find it while drafting. If you write first, a tool that reads your chapters and keeps the wiki for you saves weeks of note taking.
| Tool | Best for | AI | Pricing |
|---|---|---|---|
| AxiomStory | Novels and series of any length: a story wiki, plot hole checks, and pictures and voices for your characters | Yes. Reads your chapters, checks continuity, and suggests edits you approve. Never writes your book unless you ask | Free to start, no card. Plans from $20 a month |
| Novelcrafter | A codex of notes plus AI with your own key | Bring your own key, from $8 a month | $4 to $20 a month |
| Scrivener | Offline drafting and research | No | One time purchase |
Practical guides and checklists are original editorial guidance. Official descriptions don't show how tools compare in use. Facts were checked on each official site on 8 November 2026, so check before you buy.
How to find plot holes and continuity errors in a novel, by hand and with software.
How to design magic with clear sources, costs and limits, and a builder to write your own rules down.
How to build a timeline for a novel so ages, travel and events line up, with a quick age calculator.
The worldbuilding questions that matter most for a novel, as a checklist that saves your progress.
This is one of a set of references published by AxiomStory: Best Book Writing Software, Best Book Writing App, Best Novel Writing App. They share the same publisher and are not independent reviews.
Best Fiction Writing Software. "Fantasy Writing Software." Reviewed 8 November 2026. https://bestfictionwritingsoftware.com/fantasy-writing-software/