Allmaps: Open-source tools for georeferencing and viewing digitised old maps. NYPL Map Warper: Historical maps of New York and beyond, aligned to the modern map by volunteers.
| Allmaps | NYPL Map Warper | |
|---|---|---|
| Category | Historical & Old Maps | Historical & Old Maps |
| Coverage | Worldwide | New York and beyond |
| Updates | Continuously (community edits) | Static archive |
| Data source | Library IIIF collections | NYPL Map Division |
| Made by | Allmaps | New York Public Library |
| 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 NYPL Map Warper
- Thousands of georeferenced historical maps
- Overlay on modern maps
- Help rectify maps yourself
Summary based on public information. Check each map's website for current features and prices.