Greasy Fork

I recommend to use the browser Extensions of this script, because they have some more Features:
Chrome: https://chrome.google.com/webstore/detail/mal-sync/kekjfbackdeiabghhcdklcdoekaanoel?hl=en
Firefox: https://addons.mozilla.org/en-US/firefox/addon/mal-sync/


MAL-Sync is a powerful userscript, which enables automatic episode tracking between MyAnimeList/Anilist/Kitsu/Simkl and multiple anime streaming websites.
Makes it possible to use your MyAnimeList/Anilist/Kitsu/Simkl anime/mangalist as a centralized bookmarks system for all supported pages

Does not work on greasemonkey, please use another userscript loader like violentmonkey or tampermonkey.

Anime:
crunchyroll.com
netflix.com
kissanime.ru
9anime.to
vrv.co
otakustream.tv
gogoanime.tv/io
twist.moe
anime4you.one
animeflv.net
jkanime.net
turkanime.tv
proxer.me

Manga:
kissmanga.com
mangadex.org
mangarock.com
proxer.me

A full list can be found on the github page:
https://github.com/lolamtisch/MALSync#mal-sync


What else can it do?

MyAnimeList
- Direct links to the supported websites
- Links to the next episode
- Enlarge thumbnails in many places
- Adds missing watching status tags like in the related anime section
- Estimated time to next episode and estimated current episode number (JP release time)

miniMAL
- Allows to browse, search and edit MyAnimeList anime/manga
- Access to MAL Bookmarks
- MAL-Sync's Settings

Github: https://github.com/lolamtisch/MALSync
Discord: https://discordapp.com/invite/cTH4yaw