Timelines Studio is unclaimed —

Timelines Studio

Timelines Studio is a free, open-source desktop app for creating interactive timelines for worldbuilding and history. It is local-first, storing notes and timeline data on-device, and supports building timelines from events, spans, and eras with linked markdown/MediaWiki notes. It also offers map and spreadsheet views of the same timeline data, plus optional GitHub-based sync and a no-account web viewer for sharing timelines.

What it's for

Building interactive timelines for worldbuilding and fictional settingsVisualizing historical events, periods, and erasAttaching research notes and sources to timeline elementsMapping events and spans geographicallyBulk-editing timeline elements in a spreadsheet viewSyncing and versioning timeline libraries via GitHubSharing timelines via a browser-based viewer link

Features 19

Customizable event colors and sizing
Customizable themes with a community theme marketplace
Drag-and-drop timeline import and custom install folders
Dynamic dates that re-resolve to the present, with optional today marker
Events, Spans, and Eras as core timeline building blocks
Fuzzy era boundaries
Git sync across devices via a user-owned GitHub repository
Image thumbnails and icons for events
Linked markdown notes attached to timeline elements
Map view showing events and spans with coordinates
MediaWiki content support in notes
Selectable date formats (MM/DD/YYYY, DD/MM/YYYY, YYYY-MM-DD)
Source citations with links
Spreadsheet view with sorting, bulk editing, and CSV export
Tags and groups for filtering and organizing timeline elements
Version history with restore-as-copy for any past version
Video embeds in notes
Video export of timelines
Web viewer for opening .timeline files in a browser with no account needed

At a glance

free tieropen source

TypeDesktop app

DeploymentInstalled (local)

PlatformsWindows, macOS, Web

Integrations

MediaWikiOSMGitHub

Resources

Changelog

Pricing

Completely free and open-source with no paid tier, accounts, or ads; optional donations support ongoing development.

FreeFree

Free and open-source forever; donations accepted to support development.

No paid tier, no accounts, no ads