Chronal Studio keeps your writing, the facts and events you approve, timelines, relationships, questions, and supporting sources connected inside one folder on your computer.
Local by default. The project stays in an ordinary folder you control.
One reviewed record. Every part of the app reads the same approved facts and events.
Evidence attached. You can open the source behind an answer.
Write, explore, and verify without leaving the project.
Studio groups its tools into three areas. They all read the same files, so a selected person, event, or source stays connected as you move between them.
01 / Write
Write normally. Add structure when it helps.
Write in Markdown, a readable plain-text format. When a detail needs to be tracked over time, add a fact, date, relationship, or cause-and-effect link beside the source.
Browse and edit the notes in your project
Review facts and events beside the writing
Approve or reject suggestions before they are saved
Timeline, relationship map, and cause-and-effect map
02 / Explore
See the same project from another angle.
Read events in order, see the project at a chosen date, follow a network of relationships, or focus only on explicit cause-and-effect claims.
A timeline for sequence and overlap
A point-in-time view of what was true
Maps of relationships and cause and effect
03 / Verify
Ask a question. Check the answer.
Use a guided question or a precise written query. Then open the source trace to see which record supports the answer, what it replaced, and when it applies.
The supporting source and the earlier record it replaced
More ways to understand your project.
Build the history once. Explore the same facts through time, relationships, character knowledge, and supporting sources. These tools work with AI turned off.
Readable project files
Write in Markdown, a simple plain-text format that works in many editors. Chronal stores approved facts and events in small JSON files beside your notes.
Timelines and snapshot comparison
Read events in order, inspect what was true at one moment, or compare two dates to see which facts and relationships changed.
Calendars for your world
Define month counts and lengths, the hours in a day, and familiar BCE/CE labels or numbered ages. Your timeline, queries, and snapshots share the project calendar.
Relationships and cause and effect
Follow general connections between people, places, documents, and events. View explicit cause-and-effect claims separately.
Investigations you can save
Start with a guided question or write a precise query. Save it with the project, reopen it later, and move from results to the relevant source, graph, or timeline.
Knowledge and changing perspectives
Track what a person or character knew at a particular time, separately from what was true in the wider world.
Source tracing and Findings
Follow an answer to its supporting record. Inspect inconsistent or malformed data in Findings, with confirmation and undo for supported repairs.
Facts that become events
Turn a direct state change into a dated event that explains it. Preview the change before confirming, then follow its effects across the project.
Optional local AI
Propose facts from your existing prose with a model on your computer. Review the source, edit, accept, or dismiss each proposal. It never writes your prose.
Never writing for you. Chronal’s built-in AI can propose facts from what you have already written. Your voice, your ideas, and what becomes true in your project remain yours to decide.
Use it on your terms.
Leave AI off and add facts yourself. Writing, timelines, graphs, snapshots, queries, and source tracing all work without a model.
It runs on your computer.
Download a model to your device. After setup, fact suggestions run locally, including offline. Your prose is not sent to an AI provider.
You have the final say.
Inspect the source and each proposed change. Edit, accept, or dismiss it. A suggestion only joins the tracked record when you accept it.
You write
“In 1825, John Baldwin became mayor of Greyhaven.”
Your original sentence stays as you wrote it.
Local AI proposesAwaiting your review
Person
John Baldwin
Fact
Mayor of Greyhaven
From
1825
A possible fact to track, with the source sentence attached. You decide whether it belongs.
Illustrative proposal, not a generated passage. AI can misread a sentence; review is part of the workflow.
Connecting an outside agent is a separate choice. Its provider may process content in the cloud. Read about agent access.
Beneath the desktop app
One engine keeps every answer consistent.
Chronal Engine is the time-aware logic that reads the project, calculates what was true, checks the data, and traces answers back to their sources. Studio and optional external tools use that same logic.
