A Free Alternative to HistoricAerials (2026)
HistoricAerials (NETROnline) is the best known place to look up old aerial photography of a US address. It is also watermarked, slow, and paywalled at the moment you want an actual image. The honest answer to "what is the free alternative" depends entirely on which decade you need.
If you need 2014 to today: use RewindEarth
RewindEarth is free, has no account, no watermark, and no download limit. It reads the Esri World Imagery Wayback archive — around 190 dated releases since February 2014 — and shows you only the ones where the imagery over your specific location actually changed.
For the recent past it is materially better than HistoricAerials: the resolution is higher, the imagery is in colour, the snapshots are more frequent, and you can animate through them or drag a divider to compare two eras directly.
If you need the 2000s: USDA NAIP
NAIP has flown the lower 48 during growing season since 2003 and is public domain. It is free through USGS EarthExplorer and various state GIS portals. The catch is usability: you download imagery by tile and year, not by typing an address.
If you need the 1930s to 1990s: HistoricAerials is often still the answer
This is where honesty matters more than a sales pitch. NETR has digitised a very large volume of film-era photography and indexed it by address. No free service replicates that. What you can do is avoid paying unnecessarily:
- The preview is free. For simply answering "was there a building here in 1963", the watermarked preview usually suffices.
- Your county assessor may have the same photo for free. Assessors have photographed parcels for valuation for decades. Call before you buy.
- USGS EarthExplorer holds aerial photography from 1937 onward. Browsing is free; scans cost a modest fee, usually less than a commercial download.
- University map libraries frequently hold statewide flight series and will scan a frame for free or for the cost of handling.
Side by side
| RewindEarth | HistoricAerials | |
|---|---|---|
| Cost | Free, no account | Free preview, paid download |
| Watermark | None | Yes, on previews |
| Coverage | 2014 → today | 1930s → recent |
| Resolution | Sub-metre, colour | Varies; older frames are black and white |
| Snapshots per address | Typically 8–30 | Typically 4–12 |
| Animate through time | Yes | No |
| Compare two eras | Yes, draggable divider | Limited |
| Topographic map overlay | Not yet | Yes |
The short version. For the last decade, RewindEarth does more and costs nothing. For the film era, nothing free matches NETR's index — but check your county assessor and USGS before you reach for a card.
Common questions
Is RewindEarth really free?
Yes. No account, no watermark, no download cap. The site is supported by advertising.
Does RewindEarth have 1950s imagery?
No. Its photographic archive begins in February 2014. For the film era, use USGS EarthExplorer, your county assessor, a university map library, or HistoricAerials.
Can I download images from RewindEarth?
You can screenshot freely for personal and research use. The underlying imagery is licensed by Esri and its providers, so commercial republication requires checking Esri's terms.
Why does RewindEarth show fewer years than the archive has releases?
Because most releases do not change the picture over any given address. RewindEarth compares the actual image data for your location across all releases and shows only genuinely different snapshots.
Try it on your own address
Paste an address or a Google Maps link and scrub through every aerial snapshot on record. Free, no account.