Best IMDb list sync tools for film list curators in 2026

Compare IMDb list sync tools for film list curators. See how each option links IMDb lists to Radarr and Sonarr, and what to check before you choose.

By VLClean · 2026-10-11

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

Watcharr turns one public IMDb list into one link for Radarr with the movies and one for Sonarr with the shows. ^[1] The other options here cover different jobs, so match the tool to the job before you choose.

Option	What it does with IMDb lists	Own fee	Card fee
MDBList	Imports external lists from Trakt, IMDb, Rotten Tomatoes and other sources ^[2]	Supporter membership, price not published ^[3]	not published
Listrr	Creates personalized lists for shows and movies with many filters ^[4]	Donor extras, price not published ^[4]	not published
Traktarr	Uses Trakt to find shows and movies to add to Sonarr and Radarr ^[5]	not published	not published
Trakt	not published	Free on web, iOS and Android ^[6]	not published
Kometa	Integrates with Sonarr and Radarr to automate library growth ^[7]	not published	not published
Watcharr	Splits one public IMDb list into a Radarr link and a Sonarr link ^[1]	not published	not published

What film list curators need from IMDb list sync tools

Film list curators usually keep a list on IMDb and want its titles to reach the apps that handle movies and shows, such as Radarr and Sonarr, without copying each title by hand. Many also want the same list available to a household, or want lists from more than one site in one place. The main limit to plan for is timing. A sync tool checks a list on a schedule, so a new title can take a while to show up rather than appearing at once. Curators should also check what happens to titles a tool cannot match, since a show without a matching database id may be left out. Finally, they should check whether a tool needs an account, and whether they would rather use a hosted option or run the software on a server they manage themselves.

MDBList for film list curators

MDBList describes itself as a place to discover, track and build your entertainment. ^[3] It has a Streaming Charts section on its site. ^[3] MDBList offers a Supporter membership, with sign-up linked through Memberful and Patreon. ^[3] Check MDBList's own pages for how a list from IMDb would reach Radarr or Sonarr before you rely on it for that.

Listrr for film list curators

Listrr creates personalized lists for shows and movies, with many filters to narrow them. ^[4] Every list created is updated automatically. ^[4] Listrr also offers an API for developers. ^[4] Check whether its filters can start from the IMDb lists you already keep, because that decides how much of your current work it can take over.

Traktarr for film list curators

Traktarr uses Trakt to find shows and movies to add to Sonarr and Radarr. ^[5] It supports public lists ^[5], and it supports official Trakt lists such as Trending, Popular, Anticipated, Box Office, Most Watched and Most Played. ^[5] Check Traktarr's own pages to confirm whether public IMDb lists are covered.

Trakt for film list curators

Trakt is free on web, iOS and Android. ^[8] Check Trakt's own pages for whether it reads IMDb lists before you rely on it for that.

Kometa for film list curators

Kometa integrates with Sonarr and Radarr to automate library growth. ^[7] It can create collections based on trending and popular content, drawing on TMDb, IMDb and more. ^[7] It also connects to third-party services including TMDb and IMDb. ^[7] Check Kometa's own pages for whether it can read a list you already keep on IMDb before you choose it for that.

Watcharr for film list curators

Watcharr is made by the team that publishes this site. It takes one public IMDb list and gives you 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 minutes. ^[1] It accepts any public IMDb watchlist or list from the desktop site, the phone site or IMDb's other-language pages. ^[1] Inside Radarr or Sonarr, a bookmark you click adds the list for you, using that app's API key and sending it nowhere else. ^[1] The links are built from the IMDb list's id, so the same list always gives the same two links. ^[1] For shows, it looks up TheTVDB ids through TVMaze and TMDB, leaves out shows it can't match, and tells you which ones it skipped. ^[1] Signing in is optional, and once 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] 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] The hosted version needs nothing to install and no account. ^[1] Commercial use is not licensed, and no commercial licence is for sale. ^[1]

Matching the tool to the job

For one public IMDb list that feeds Radarr for movies and Sonarr for shows, Watcharr splits the list into one link for each app. ^[1] For a household that shares one list, Watcharr's signed-in users can combine several IMDb lists into a single link per app. ^[1] For lists built from filters, Listrr creates personalized lists with many filters, ^[4] and Kometa can create collections based on trending and popular content. ^[7] For official Trakt lists such as Trending or Most Watched, Traktarr supports them. ^[5] For a service that is free on web, iOS and Android, Trakt is one option. ^[6] For following charts, MDBList has a Streaming Charts section. ^[3]

Questions to ask before you choose

Before choosing, ask whether the list you keep is public, since that decides which lists a tool can read. Ask how often the tool checks the list and whether that schedule suits how often you change it. Ask what the tool does with titles it cannot match, and whether it tells you which ones it skipped. Ask whether you need one link for movies and another for shows, or a single list for the whole household. Ask whether an account is needed to start, and whether you would rather use a hosted option or run the software yourself. Finally, ask which list sources the tool supports, such as IMDb, Trakt or others, and check that the support covers the lists you actually use.

Frequently asked questions

Which IMDb list sync tool should film list curators compare first?

Start with the job you need done. If you want one public IMDb list to feed Radarr and Sonarr, compare how each tool creates its links, whether it accepts public IMDb lists, and what happens when a read of the list fails. If you build lists from several sites, compare the filters and sources instead. Check each tool's own pages before you decide, because the detail on this page is limited.

Does Watcharr need an account to start?

No account is needed for the hosted version, which needs nothing to install. ^[1] Signing in is optional, and once you sign in, Watcharr re-reads your list about every 15 minutes and warns you when a list fails three reads in a row. ^[1] Signed-in users can also combine several IMDb lists for a whole household. ^[1]

How often does Watcharr refresh an IMDb list in Radarr and Sonarr?

Radarr checks each Watcharr link every 15 minutes and Sonarr checks every 5 minutes. ^[1] Signed-in users also get a re-read of the list about every 15 minutes. ^[1] If a read of the list fails, the links keep serving the last list that loaded correctly. ^[1]

Can Watcharr combine several IMDb lists for a household?

Signed-in users can combine several IMDb lists into one Radarr link and one Sonarr link for the whole household. ^[1] A title that appears on two of the lists is added only once. ^[1] The links are built from each IMDb list's id, so the same list always gives the same two links. ^[1]

Can Trakt read IMDb lists for film list curators?

Check Trakt's own pages before you rely on it for IMDb lists. Trakt is free on web, iOS and Android. ^[8] Traktarr is a separate tool that uses Trakt to find shows and movies to add to Sonarr and Radarr. ^[5] Compare how each tool treats the list source you already use.

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

Try Watcharr