Userscripts.org

Copy as you type it alias name into alias sort name (only if the situation allows it and is appropriate) instead of letting empty sort name

One click imports JASRAC works into MusicBrainz (name, iswc, type, edit note). It will do the same magic in work editor. Work links to both JASRAC and 音楽の森 / ongakunomori / music forest / minc / magic db and back to MB

Highlights releases, release-groups, etc. that you have in your collection (any collection can be loaded) everywhere in *.musicbrainz.org

Get a pattern editable copy of the track list in plain text for quick re-use (in track parser, foobar2000 or mp3tag for instance) and other release event related search tools

Include the day of the week for release events

Remembers last edit notes and dates in (test.)musicbrainz.org and acoustid.org

The script adds links to various torrent trackers/indices, Spotify, Grooveshark, Wikipedia, Google, Discogs, Rate Your Music, MusicBrainz, Amazon and allmusic to Last.fm artist, album and similar-artists pages and Rate Your Music album and artist ...

Adds some buttons to check all unvoted edits (Yes/No/Abs/None) at once in the edit search page. Use shift+click to force all votes, a vote reset button is also available to cancel shift+click (musicbrainz) + Double click radio to vote single edit.

Adds preview button and BBCode markup tools (bold, italic, url, etc.) in musicbrainz forums

All JASRAC direct links now work. You do not need to bother about session or home page any more.

Hidden links include fanpage, social network, etc. (NO duplicates) Generated links (configurable) includes Google, auto last.fm, Discogs and LyricWiki searches, etc. Dates on URLs

Displays inline recordings’ ISRCs, PUIDs and AcoustIDs. Highlights duplicates in releases and edits in (test.)musicbrainz.org and classic.

Various MusicBrainz UI enhancements

Prefix all entity links with an icon, mostly in edits but also in blog, forums, chatlogs, tickets, etc.

Hides all the PUID edits in MusicBrainz.

Automatically adds embedded videos after links to video pages..

Adds links to filtered and searched release groups, releases and recordings for each artist credit in artist aliases page's artist credits section. Additionaly spots duplicata aliases.

MusicBrainz : Batch linking a work to its {cover} performance recordings

Code to add to any Greasemonkey script importing data into MusicBrainz

Easily import Encyclopedisque releases into MusicBrainz

Enhances the artist splitter edit page to make it far more functional

Adds a small text area to every artist credit bubble, which contains a JSON representation of the credit that can be copied into other AC text areas. Saves you from having to reenter large credits multiple times. (Works in Firefox/Chrome/Opera/Epi...

Adds buttons to guess feat. credits in the advanced release editor (Firefox/Chrome/Opera).

Import releases from iTunes

This script adds a field after the existing date fields where you can paste a date and it will try to parse it.

Link multiple recordings to an existing work, or have the script create a new work for you from an artist's recordings page. (Works in Firefox/Chrome/Opera.)

View recording/work/release relationships on release pages. (WORKS IN Firefox/Chrome/Opera.)

Scrobble music videos from YouTube to Last FM. Contains both automatic scrobbling and manual scrobbling.