IQDB is described as 'Multi-service image search' and is a image search engine in the online services category. There are more than 10 alternatives to IQDB, not only websites but also apps for a variety of platforms, including Mozilla Firefox, Opera, Mac and Microsoft Edge apps. The best IQDB alternative is TinEye. It's not free, so if you're looking for a free alternative, you could try TinEye or Search by Image. Other great sites and apps similar to IQDB are NooBox, PictPicks, trace.moe and THINK FR33 Reverse Image Search.
Reverse image search engine creating digital signatures to locate sources, track usage, find higher resolutions, and discover alterations. Ad-free and resource-efficient.
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
SauceNAO is a reverse image search engine. The name 'SauceNAO' is derived from a slang form of "Need to know the source of this Now!" which has found common usage on image boards and other similar sites.
A useful Toolbox! Reverse image search with multiple engines + Extract images + Screenshot & Search
PictPicks is free application to search images and photos with a simple operation.
Reverse Image Search lets you search by images using Reverse Search engine instead of keywords.
Face Search AI does the hard work for you, searching across the web for websites and links that may feature images similar to the one you upload.
Adds an option to the context menu to search with an image on Google, Bing, Yandex, TinEye, SauceNAO, IQDB or custom search engines. You can also choose more than one and they will be shown in a submenu!.
Bingle goggles combines the power of Bing, Google, Yahoo & Facebook services into one app!
isk-daemon is an open source database server capable of adding content-based (visual) image searching to any image related website or software.
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This is backend software to CREATE an something that would be an alternative to IQDB.