
Cited, reproducible maps your readers can trust
Every layer traces to a licensed source. Every view is reproducible. Cartian is the DOI-for-a-map, built for reporting that has to stand behind every figure.
The reporting map, shipped and free to open
These are live the moment you open Cartian - no waitlist, no setup.
Interactive map
Available nowA fast, beautiful, pannable map of the real world on any device - desk or field.
Open-data layers
Available nowTurn on curated, editorially-clean layers: terrain, imagery, boundaries, nature, and more.
Intelligent search
Available nowAsk in plain language and the map moves, surfaces the right layers, and answers for you.
Provenance on every layer
Available nowThe Cartouche shows each layer's source, provider, and license - traceable, not taken on faith.
Share the exact view
Available nowSend a link to precisely what you are looking at - it opens right where you left it.
Reproducible views
Available nowThe same layers and framing render the same map - the groundwork for a citable record.
Every layer wears its source
Credibility is a chain of custody. The Cartouche is where the map shows its work.
Trace every figure back to its origin
Available nowWhen you publish a Cartian map, each layer names the dataset it came from, the provider that maintains it, and the license it ships under. An editor, a fact-checker, or a skeptical reader can follow the trail - so a map in your story is evidence, not decoration.
- Source, provider, and license visible per layer
- Editorially-clean open data - no non-commercial or credit-metered traps
- The same provenance surface a fact-checker would ask for

A permanent, citable record of the map you published
Pin the exact map behind a story
Early accessA citable Snapshot freezes the precise layers, versions, and view into a stable, content-addressed record resolved by a short Map Code. The map behind your reporting stays fixed even as the underlying data updates - so a correction, a follow-up, or an archive points at exactly what ran. This is the North Star, and it is rolling out in early access.
- A short Map Code that resolves to the exact published map
- Layers and versions pinned - the record does not drift
- Built for archives, corrections, and citations

From open map to cited graphic
Four steps - the first three are live today; the last two ship in early access.
Build the map
Available nowOpen Cartian, turn on the layers your story needs, and frame the view. Free, no login to explore.
Check the sources
Available nowOpen the Cartouche to confirm each layer's provider and license before you publish.
Share the view
Available nowSend a link to the exact map - editors and readers land on precisely what you framed.
Cite and embed
Early accessFreeze a citable Snapshot with a Map Code and drop a live embed into your story - both in early access.
A living map inside your article
Bring the map to the reader, not a flat screenshot
In developmentA live, pannable Cartian map embedded in your article or CMS lets readers explore the evidence themselves - with the Cartouche and the Map Code burned in for credit and reproducibility. The embed is in development; today you can share a link that opens the exact view.
- A pannable map in the article, not a static image
- Provenance and the Map Code travel with the embed
- Available now: share a link to any exact view

What a Cartian map looks like
The reporting surface itself, framed on a delta a desk might cover - every layer sourced.
Common questions
What can a newsroom use Cartian for right now?
Today you can open the interactive map for free, turn on curated open-data layers, use the intelligent search that moves the map and surfaces the right data, share a link to the exact view, and see every layer's source in the Cartouche. The citable Snapshot export and the story embed are rolling out in early access.
How does Cartian show the source of map data?
Every layer carries visible provenance in the Cartouche: the dataset it came from, the provider, and the license. So when you publish a map, a reader (or a fact-checker, or an editor) can trace each layer back to its origin instead of taking the figure on faith.
Can I reproduce the exact map I published later?
Reproducibility is the point. The citable Snapshot pins the exact layers, versions, and view into a stable record addressed by a short Map Code, so the map behind a story stays fixed even as underlying data updates. Snapshot exports and the Map Code are in early access - join the program and we will onboard your desk.
Can I embed an interactive Cartian map in a story?
A story embed - a live, pannable map inside your article or CMS - is in development. Today you can share a link to any view, which opens the map exactly where you left it. If embedding is on your roadmap, request early access and we will prioritize your outlet.
Where does the underlying map data come from, and is it licensed for publication?
Cartian is built on curated open data that permits commercial and editorial use, and each layer names its provider and license in the Cartouche. We deliberately exclude non-commercial and credit-metered sources, so the maps you publish do not carry hidden licensing traps.
Is Cartian free for journalists?
Opening and exploring the interactive map is free. The newsroom-specific capabilities - citable Snapshots, the Map Code, and the story embed - are in early access; joining the program is free while we onboard partner newsrooms in small groups with hands-on setup.
How is this different from a static map export or a chart tool?
A static export is a picture with no traceable sources; a chart tool renders numbers, not a living map. Cartian gives you an explorable map where every layer is sourced and every view is reproducible - so the map is both a compelling graphic and a citable, verifiable record.
Cartian for every kind of work
The same living, citable map - built for the classroom, the museum floor, and the maps you publish.
Cartian for teachers
A free interactive map for the classroom - with whiteboard mode, class pairing, and review quizzes on the way.
Cartian for museums
Turn a big screen or kiosk into an explorable, hands-on map of your collection and its world.
Cartian for creators
Shareable, embeddable interactive maps for your videos, blogs, and group chats.
Cartian for conservation
Credible, citable maps of the living world, built on commercially-clean open data.
Publish maps your readers can verify
Open the live map now, or request early access to citable Snapshots, the Map Code, and the story embed.
The interactive map and per-layer provenance are free today. Citable exports and the story embed are in early access.