Boromlia and Preceden compared row by row: six views of one record, a map with real coordinates, a source field on every event, CSV import and export, and prices from free to $49.99 paid once.
Looking for a Preceden alternative usually means the timeline stopped being the hard part and the record behind it started to matter. Boromlia keeps that record: every event carries a place, a source, people, tags and photographs, and the same events draw six different ways.
Preceden is quick to a layered picture. Boromlia starts from the same dates and keeps going: an event holds a place with real coordinates, a source for where the fact came from, the people involved, tags, rich text and as many photographs as it needs. Those fields are what make the timeline searchable a year later.
Because the record is structured, one set of events draws six ways with nothing typed twice. The Spans style puts start-and-end events on a shared axis as bars, which is the closest thing here to a layered chart. The Map style draws the located ones as a route. The Log style is the same events as a sortable table, and it is the shape the CSV export writes.
Preceden details checked 2026-09-06.
Views of one record. Boromlia: Six: River, Cards, Map, Spans, Ribbon and Log, switched without re-entering anything. Preceden: A layered timeline
Map of located events. Boromlia: Yes. Every event carries real coordinates and draws as a waypoint on one route. Preceden: to be verified
Sortable table view. Boromlia: Yes, the Log style. One dense row per event, and the shape the CSV writes. Preceden: to be verified
Ranges and single moments. Boromlia: Both, on one shared axis, so a two-week phase and a single decision sit together. Preceden: Yes, start-and-end events on layers
Time scale. Boromlia: Seconds through minutes, hours, days and months to years, set per timeline. Preceden: to be verified
Source on every event. Boromlia: Yes, a field of its own, and "has a source" is one of the filters. Preceden: to be verified
Photographs per event. Boromlia: As many as the moment needs. Bulk upload reads the date and GPS out of the files. Preceden: to be verified
Event description. Boromlia: Rich text, plus people, place and tags on the same event. Preceden: Description and colour per event, grouped into layers
Chapters and tags. Boromlia: Chapters group events into periods; tags cut across them. Preceden: to be verified
Filters. Boromlia: Search, tag, category, period and provenance, remembered per timeline. Preceden: to be verified
Bulk import. Boromlia: CSV or TSV on Advanced, with column mapping and every row previewed before saving. Preceden: Yes, from CSV
Export. Boromlia: A4 print PDF, CSV of every field, and a zip of images with a manifest. Preceden: Image, PDF and PowerPoint
Embed in another page. Boromlia: One iframe tag on Advanced. No script, no key, and it reads the live timeline. Preceden: Yes
Default visibility. Boromlia: Private to your account until you publish. Shared links are read-only and noindex. Preceden: to be verified
Working with other people. Boromlia: Collaborators are added per timeline and contribute events. No seat to buy each. Preceden: to be verified
Runs in. Boromlia: Any browser. Windows, macOS, Linux, tablets and phones, with nothing installed. Preceden: Any browser
Price. Boromlia: Free tier, $2.99 a timeline slot, $12 a month, or $49.99 once with nothing to renew. Preceden: From $12/mo, or $10/mo billed annually. Free tier: unlimited timelines of up to 10 events each