NYPL Map Warper: Historical maps of New York and beyond, aligned to the modern map by volunteers. Old Maps Online: Search engine for historical maps held by libraries worldwide.
| NYPL Map Warper | Old Maps Online | |
|---|---|---|
| Category | Historical & Old Maps | Historical & Old Maps |
| Coverage | New York and beyond | Worldwide |
| Updates | Static archive | Continuously (community edits) |
| Data source | NYPL Map Division | Partner libraries and archives |
| Made by | New York Public Library | MapTiler (Klokan Technologies) and partners |
| Price | Free | Free |
| Account | No account needed | No account needed |
| On phones | Best on a computer | Works well on phones |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with NYPL Map Warper
- Thousands of georeferenced historical maps
- Overlay on modern maps
- Help rectify maps yourself
What you can do with Old Maps Online
- Search old maps by location
- Filter by date
- Maps from many libraries in one place
Summary based on public information. Check each map's website for current features and prices.