Photosynth
Microsoft Live Labs' 3D photo stitcher, a jaw-dropping demo in 2006, a website from 2008, switched off in February 2017
Photosynth was a Microsoft technology and web service that analysed sets of overlapping photographs, worked out where each was taken and reconstructed the scene as a navigable 3D point cloud, later adding stitched panoramas. Grown from Noah Snavely's Photo Tourism research at the University of Washington and shown as a Live Labs technology preview on 9 November 2006, it launched to consumers at photosynth.net on 20 August 2008, gained iPhone and Windows Phone apps in 2011 and a new preview in 2013, and was shut down on 6 February 2017.
Timeline [edit]
- 2006
-
9 November 2006
Launch
Photosynth technology preview
From Photo Tourism and Seadragon.
- 2008
-
20 August 2008
Launch
photosynth.net opens to everyone
Upload photos, get a 3D synth.
- 2010
-
2010
Feature
Panoramas added
- 2011
-
19 April 2011
Version
Photosynth for iPhone
Panoramas by phone; Windows Phone followed.
- 2013
-
10 December 2013
Version
New Photosynth technology preview
Spins, walks, walls and panoramas.
- 2016
-
4 November 2016
Shutdown announced
Shutdown set for 6 February 2017
Offline viewer released for exports.
- 2017
-
6 February 2017
Shutdown
photosynth.net decommissioned
No data retained.
How it looked [edit]

The site through time
Browse photosynth.net as it was, via the Internet Archive's Wayback Machine:
Ownership [edit]
Why it shut down [edit]
Official line: On 4 November 2016 the Photosynth team said the site and services would be decommissioned on 6 February 2017 because, reviewing its portfolio, Microsoft found too little use to justify continued investment; users were given an offline viewer for panoramas and Tech Preview synths and told nothing would be kept after the date. The mobile apps had been withdrawn in 2015 and the last technology, the 2013 preview, had been folded into Microsoft Pix and Bing.
Our analysis: Photosynth was one of the great demos of the 2000s, and demos are hard to turn into habits. Building a synth took dozens of photos, patience and a Windows PC with Silverlight, and the result was something to look at once. Panoramas were easier but phones did those natively by 2012. Microsoft kept the research (it went into Bing Maps, Streetside and Pix) and closed the destination nobody visited.
History [edit]
Photo Tourism
Noah Snavely, Steve Seitz and Richard Szeliski's Photo Tourism work at the University of Washington showed in 2006 that hundreds of tourists' photographs of Notre-Dame could be placed automatically in three-dimensional space and browsed as a scene. Microsoft's Live Labs, with Blaise Agüera y Arcas (whose Seadragon deep-zoom company Microsoft had just bought), turned it into Photosynth, and released a technology preview on 9 November 2006 with a handful of collections, including Seattle's Space Needle and photographs from NASA. Agüera y Arcas's TED demonstration in 2007 made it famous.
The consumer service, photosynth.net, opened on 20 August 2008: upload a set of overlapping photographs, and the software worked out the camera positions, built a point cloud and let anyone fly through the "synth" in a Silverlight viewer. Within weeks it held tens of thousands of synths, from cathedrals to living rooms; National Geographic, NASA and the BBC used it, and it was built into Bing Maps. In 2010 it added stitched panoramas, in 2011 an iPhone app that made panoramas by waving the phone, then a Windows Phone app; in December 2013 a new technology preview did smoother "spins", "walks", "walls" and "panoramas" from ordinary sequences.
Decommissioned
The mobile apps were withdrawn in 2015, and on 4 November 2016 the Photosynth blog said the site would shut down on 6 February 2017: usage did not warrant continued investment, users should download their panoramas and Tech Preview synths with a new offline viewer for Windows and Mac, and no data would be kept. The original 2008-style synths could not be exported at all. The viewer code was released as open source. Its ideas moved on into Microsoft Pix, Bing Streetside and, later, everyone's photogrammetry apps.
The domain today
photosynth.net no longer resolves.
Similar projects
Sources [edit]
- Microsoft shoots for 3D multi-photo viewer CNET 9 November 2006 [archived]
- Microsoft launches 3D wonder Photosynth for consumers CNET 21 August 2008 [archived]
- A new spin for Photosynth Microsoft Research 7 January 2014 [archived]
- Microsoft to shut down Photosynth service on February 6, 2017, download your creations now Winaero 27 December 2016 [archived]
- Microsoft to shut down Photosynth service on February 6, 2017 MSPoweruser 4 November 2016 [archived]
- Microsoft Photosynth Archive Team 6 February 2017 [archived]
Last verified: 18 August 2026. Spotted an error? Suggest an edit (corrections with sources are reviewed and applied).