Allmaps: Open-source tools for georeferencing and viewing digitised old maps. Géoportail: France's official map portal: IGN maps, aerial photos, cadastre and history.
| Allmaps | Géoportail | |
|---|---|---|
| Category | Historical & Old Maps | Map Platforms & National Atlases |
| Coverage | Worldwide | France |
| Updates | Continuously (community edits) | Periodically |
| Data source | Library IIIF collections | IGN and French public bodies |
| Made by | Allmaps | IGN (Institut national de l'information géographique et forestière) |
| Price | Free | Free |
| Account | No account needed | No account needed |
| On phones | Best on a computer | Best on a computer |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with Allmaps
- Georeference IIIF maps in the browser
- Overlay old maps on modern maps
- Open source and open standards
What you can do with Géoportail
- IGN topographic maps
- Aerial photos, current and historical
- Cadastre and land data
- Hundreds of thematic layers
Summary based on public information. Check each map's website for current features and prices.