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[Userscript] Reverse Image Search Source Finder

DanielTepesKraus
GREEN - TALK TO ME
Greatest Poster in the Board -
The End wasn't The End - Found a new home after the great exodus of 2012
Artist -
Derpibooru Premium - Learn about the benefits of subscribing to Derpibooru Premium membership at https://derpibo
A Perfectly Normal Pony - <DrKraus> "Roger Weiner-Asshole One. Out"
Emerald -
Speaking Fancy - For helping with translations
Fine Arts - Two hundred uploads with a score of over a hundred (Safe/Suggestive)
Best Artist - Providing quality, Derpibooru exclusive artwork

will return ( ͡° ͜ʖ ͡°)
Description
Want a quick and convenient way to find a picture on the web? This script adds a dropdown menu that provides "reverse image search" links. This makes use of several external reverse image search engines to aid in finding a missing source for an upload or if you're merely curious where else it can be found in the internet.

It in action:


It uses the following websites:

Google
Bing
More often than not these will find sources on deviantart, tumblr, inkbunny, etc.

TinEye
A dedicated reverse image search service that boasts over 14.6 billion indexed images.

Saucenao
A search engine similar to TinEye that tends to find pixiv posts with great success.

iqdb
A NSFW reverse image search that is ideal for finding Japanese fanart as it only searches these domains:
http://danbooru.donmai.us/
http://konachan.com/
http://yande.re/
http://gelbooru.com/
http://chan.sankakucomplex.com/
http://e-shuushuu.net/
http://theanimegallery.com/
http://zerochan.net/
http://mangadrawing.net/
http://anime-pictures.net/

The Doujinshi & Manga Lexicon
A catalogue of doujinshi and manga. Useful for finding information on doujinshi covers that are posted here. Note that this site does not offer downloads of said content.

Yandex / Яндекс
Essentially a Russian search service. I've had decent success finding good images through it.


Changelog
V1.0 — 2016/03/30 — Initial release
V2.0 — 2017/07/30 — Revamp for comparability with new site changes

Download Link
Download

Disclaimer and Such
Use at your own risk. This script does not store or access any user data. This script has been tested but may not be entirely bug free.
DanielTepesKraus
GREEN - TALK TO ME
Greatest Poster in the Board -
The End wasn't The End - Found a new home after the great exodus of 2012
Artist -
Derpibooru Premium - Learn about the benefits of subscribing to Derpibooru Premium membership at https://derpibo
A Perfectly Normal Pony - <DrKraus> "Roger Weiner-Asshole One. Out"
Emerald -
Speaking Fancy - For helping with translations
Fine Arts - Two hundred uploads with a score of over a hundred (Safe/Suggestive)
Best Artist - Providing quality, Derpibooru exclusive artwork

will return ( ͡° ͜ʖ ͡°)
just bumping this as i've gotten it working once more. that said, if anyone has any preferred reverse image search sites feel free to post them and, if i can call their search service remotely i'll be more than happy to add them to the script.
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