Is Codex Cryptica completely free?

Yes. Codex Cryptica is a client-side local-first campaign wiki. All databases and files are run on your machine with no subscriptions required.

Can I use Codex Cryptica offline?

Absolutely. Once the initial web app is loaded, Codex Cryptica's editor, interactive relationship graph, and timeline system run fully offline without requiring network access.

Can I import existing wiki files into Codex Cryptica?

Yes, Codex Cryptica supports importing Markdown folders from Obsidian or importing export packages from World Anvil and LegendKeeper directly.

Free TTRPG Worldbuilding Hub

Free Worldbuilding Tool & Lore Database

Map your fantasy worlds visually with local-first bidirectional linking.

Codex Cryptica is a free worldbuilding tool and private lore database designed to keep your creative assets safe and organized on your own device. Plan characters, locations, factions, and items with standard Markdown files that load instantly. See the connections between your notes using our built-in relationship maps and chronological timelines, all running 100% in your browser.

Start Worldbuilding

Core Capabilities

Interactive Canvas & Graph

Visualize relationships and draw map pins dynamically across factions, NPCs, and events.

Fantasy Timelines

Map campaign history and character journals using chronological eras and custom calendars.

Local-First Privacy

Your files never leave your device. Stored securely in your browser's private filesystem.

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Frequently Asked Questions

Ready to Build Your World?

No account. No server database leaks. Just quick, private, local-first worldbuilding.

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