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Best IMDb list sync tools for rating list builders in 2026

Compare IMDb list sync tools for rating list builders and see how each moves rated titles into Radarr and Sonarr.

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VLClean is published by the makers of Askarr and Watcharr, which are compared here alongside other tools.

Rating list builders keep lists of the movies and shows they rate, plan to watch, or rank. A sync tool moves the titles in those lists into the media library, usually through Radarr and Sonarr. Watcharr pastes one public IMDb list and splits it into one link for the movies and one for the shows. [1] Options differ in how the list is shared, how often it is read, and what the reader must set up first.

OptionHow titles reach the libraryRefresh and cost details
WatcharrPaste one public IMDb list and get one link for Radarr with the movies and one for Sonarr with the shows. [1]Refresh: Radarr checks the movie link every 15 minutes and Sonarr checks the show link every 5. [1] Cost: not published; the hosted version needs nothing to install and no account. [1]
MDBListMDBList promotes building and curating lists, tracking progress, discovery, and use across devices. [2] Watchlist, ratings, and progress sync with Trakt. [3]Refresh: not published. Cost: not published; a Supporter membership exists. [2]
TraktTrakt is free on web, iOS and Android. [4]Refresh: not published. Cost: free on web, iOS and Android. [5]
TraktarrTraktarr uses Trakt to find shows and movies to add to Sonarr and Radarr. [6]Refresh: not published. Cost: not published.
SimklSimkl provides notifications when new episodes or movies are released. [7]Refresh: not published. Cost: Free, Pro, and VIP membership options. [7]
ListrrListrr.pro creates lists for shows and movies with many filters. [8]Refresh: every list created gets updated automatically. [8] Cost: not published; donors get some extras. [8] List updates happen every 3 instead of 24 hours. [8]

What rating list builders need from IMDb list sync tools

Rating list builders keep lists of the movies and shows they have rated, plan to watch, or rank, and those lists live on IMDb. The job of a sync tool is to move the titles on one of those lists into the media library, usually through Radarr and Sonarr. A useful tool takes the list and turns it into something Radarr and Sonarr read, so the builder does not re-enter each title by hand. Because ratings and watchlists change as new titles are rated, the builder wants the list read on a schedule so the library stays in step. Some builders work from a single public list, while others keep several lists for genres, moods, or other people in the house. The builder also wants to know which titles the tool skipped and why, so the library matches the plan. The right choice depends on how many lists are kept, how often they change, and how the titles should be split between the movie app and the show app.

Watcharr for rating list builders

Watcharr is made by the team that publishes this site. Paste one public IMDb list and get one link for Radarr with the movies and one for Sonarr with the shows. [1] Each link acts like a small Radarr or Sonarr server, so Radarr checks it every 15 minutes and Sonarr every 5. [1] A bookmark you click inside Radarr or Sonarr adds the list for you, using that app's API key without sending it anywhere else. [1] It accepts any public IMDb watchlist or list from the desktop site, the phone site, or IMDb's other-language pages. [1] The links are built from the IMDb list's id, so the same list always gives the same two links. [1] It looks up TheTVDB ids through TVMaze and TMDB, leaves out shows it can't match, and tells you which ones it skipped. [1]

MDBList for rating list builders

For building and curating lists, MDBList's homepage promotes building and curating lists, tracking progress, and discovery across devices. [2] Watchlist, ratings, and progress can sync with Trakt without leaving the MDBList interface. [3] MDBList also links to a Reeel mobile app. [2]

Trakt for rating list builders

Trakt is free on web, iOS and Android. [4] The same service is described as free on web, iOS and Android, so the rating list builder can check whether the free option covers what they need. [5]

Traktarr for rating list builders

Traktarr uses Trakt to find shows and movies to add to Sonarr and Radarr. [6] It supports public lists. [6] Traktarr supports multiple authenticated users, so more than one person can use it. [6]

Simkl for rating list builders

Simkl offers Free, Pro, and VIP membership options. [7] Simkl has apps for Android, iOS, Chrome, Windows, Kodi, and Plex. [7] Simkl provides notifications when new episodes or movies are released. [7]

Listrr for rating list builders

Listrr.pro creates lists for shows and movies with many filters. [8] Every list created gets updated automatically. [8] Donors can create an unlimited amount of items in a list. [8] Listrr.pro offers an API for developers. [8]

Matching the tool to the job

For moving the titles on a list into the movie and show apps, Watcharr splits one public IMDb list into a link for the movies and one for the shows. [1] Traktarr uses Trakt to find shows and movies to add to Sonarr and Radarr. [6] For keeping lists updated without manual re-entry, Watcharr's links act like small Radarr and Sonarr servers that check on a schedule. [1] Listrr updates every list created automatically. [8] For building and tailoring the list itself, MDBList promotes building and curating lists and tracking progress across devices. [2] Listrr creates lists for shows and movies with many filters. [8] Trakt is free on web, iOS and Android. [4] Simkl provides notifications when new episodes or movies are released. [7]

Questions to ask before you choose

Before choosing an IMDb list sync tool, consider whether each option can move the rated titles into the media library and how they arrive. Ask whether the list is pasted as a link or added through a bookmark, and how the titles are split between the movie app and the show app. Ask how often the tool reads the list and whether the schedule matches how often the rating list changes. Ask whether shows without a match are skipped and told to you, so the library stays in step. Check how many lists and how many users the tool covers, and what the cost is. Ask what must be signed up for or set up first, and check the terms, because commercial use is not licensed. [1]

Frequently asked questions

Can Watcharr split one IMDb list into movies and shows?

Yes. Watcharr takes one public IMDb list and returns one link for Radarr with the movies and one for Sonarr with the shows. [1] The links are built from the IMDb list's id, so the same list always gives the same two links. [1] Shows that cannot be matched get left out, and Watcharr tells you which ones it skipped. [1]

Do IMDb list sync tools let more than one person use them?

Traktarr supports multiple authenticated users. [6] For other tools, check how many users each option covers. Watcharr lets signed-in users combine several IMDb lists into one Radarr link and one Sonarr link for the whole household, and a title on two lists is added only once. [1]

What does a rating list builder pay for these tools?

Trakt is free on web, iOS and Android. [4] Simkl offers Free, Pro, and VIP membership options. [7] Listrr notes that donors get some extras such as list updates every 3 instead of 24 hours. [8] [8] Prices for the other tools are not published here, so check their pages.

Can Watcharr handle a list that covers the whole household?

Yes. Signed-in users can combine several IMDb lists into one Radarr link and one Sonarr link for the whole household, and a title on two lists is added only once. [1] If a read of the list fails, the links keep serving the last list that loaded correctly. [1]

Which tool keeps a rating list current without manual work?

Watcharr's links act like small Radarr and Sonarr servers, so Radarr checks the movie link every 15 minutes and Sonarr checks the show link every 5. [1] If you sign in, it re-reads your list about every 15 minutes and warns you when a list fails three reads in a row. [1] By comparison, Listrr updates every list created automatically. [8]

Its code is available to read under the PolyForm Noncommercial 1.0.0 licence; older versions remain under MIT. [1]

Try Watcharr

Sources

  1. Watcharr's own description of itself (the product of this site's publisher)
  2. MDBList, mdblist.com, read 2026-10-07
  3. MDBList, docs.mdblist.com, read 2026-10-07
  4. Trakt, trakt.tv, read 2026-10-07
  5. Trakt, trakt.tv/vip, read 2026-10-07
  6. Traktarr, github.com/l3uddz/traktarr, read 2026-10-07
  7. Simkl, simkl.com, read 2026-10-10
  8. Listrr, listrr.pro, read 2026-10-10

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