SauceNAO
Locating image sources since 2008.
SauceNAO is a reverse image search engine that helps users identify the source of an image. It accepts images through browsing, drag-and-drop, or pasting, and searches an index covering web services, anime, manga, movies, TV shows, and other sources. The engine was originally built on a modified version of the IQDB project's engine before being replaced by a more scalable system.
The site provides search tools, account management, and status information. It is designed and implemented by Xamayon, with the main search functionality first made public in October 2008. The index has expanded over time to cover several billion images, and the site continues to undergo modifications and coverage expansion.
SauceNAO is intended for users who need to locate the origin of images, including those encountered on image boards and similar sites. Accounts can be upgraded, and donations are accepted to support the work.
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