Best IMDb list sync tools for TMDB rating collectors in 2026

Compare IMDb list sync tools for TMDB rating collectors, with what each one reads, how it adds titles to Radarr and Sonarr, and what to check first.

By VLClean · 2026-11-02

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 tools on this page start from different sources, so compare them on what each one reads and how it adds titles.

Option	What it does	Setup
Watcharr	Turns one public IMDb list into one Radarr link and one Sonarr link. ^[1]	The version run on the publisher's own server needs nothing to install and no account. ^[1]
MDBList	Imports external lists from Trakt, IMDb, Rotten Tomatoes and other sources. ^[2]	Asks for a login or sign-up to use the service. ^[3]
Traktarr	Uses Trakt.tv to find shows and movies to add to Sonarr and Radarr. ^[4]	Python 3.5 or newer required. ^[4]
Kometa	Creates collections and overlays using TMDb and IMDb. ^[5]	Its page has a Docker walkthrough for command-line use. ^[5]
Listrr	Creates personalized lists for shows and movies with many filters. ^[6]	not published

What TMDB rating collectors need from IMDb list sync tools

TMDB rating collectors usually want the titles on an IMDb list to reach their movie and show apps without being copied by hand, and they want those titles to stay current as the list changes. Many also look at TMDB, the Movie Database, for scores, plots and genres while they decide what to keep. A sync tool has to match each title to the right database entry, and a show without a match can be missed or added to the wrong place, so matching is one of the first things to check. Collectors often work with lists that change often or come from several people, so a tool that suits one list may not suit a household that wants one shared list. A source can also fail to load. Some tools keep the last list that loaded correctly when a read fails, and that matters when a source is slow or down. Before you pick a tool, decide which of these limits matter most to your collection.

Watcharr for TMDB rating collectors

Watcharr is made by the team that publishes this site. You paste one public IMDb list and get one link for Radarr with the movies and one for Sonarr with the shows. ^[1] It accepts any public IMDb watchlist or list from the desktop site, the phone site or IMDb's other-language pages. ^[1] Radarr checks the link every 15 minutes and Sonarr checks it every 5. ^[1] The links are built from the IMDb list's id, so the same list always gives the same two links. ^[1] A click inside Radarr or Sonarr adds the list for you, and the app's key stays between your own apps. ^[1] It matches shows to their TheTVDB entries using TVMaze and TMDB, leaves out shows it can't match, and names the ones it skipped. ^[1] The page shows the list's covers in a row, each opening TMDB's plot, genres, rating, backdrop and trailer. ^[1] The code is under the PolyForm Noncommercial licence, and older versions are under MIT. ^[1] Commercial use is not licensed, and no commercial licence is for sale. ^[1]

MDBList for TMDB rating collectors

MDBList's site footer links to an API. ^[3] It imports external lists from Trakt, IMDb, Rotten Tomatoes and other sources. ^[2] The facts this page can cite say little more about its list features, so check its site for how it handles an IMDb list before you choose.

Traktarr for TMDB rating collectors

Traktarr uses Trakt.tv to find shows and movies to add to Sonarr and Radarr. ^[4] It can add a single movie to Radarr. ^[4] It can add multiple shows to Sonarr. ^[4] Traktarr takes its source from Trakt.tv. ^[4]

Kometa for TMDB rating collectors

Kometa creates collections and overlays using TMDb and IMDb. ^[5] It connects to third-party services including TMDb and IMDb. ^[5] The facts this page can cite describe collections and overlays, so check Kometa's own documentation for how it reads a list.

Listrr for TMDB rating collectors

Listrr automatically updates each list it creates. ^[6] It creates personalized lists for shows and movies with many filters. ^[6]

Matching the tool to the job

If the job is one public IMDb list feeding Radarr for movies and Sonarr for shows, Watcharr gives one link for Radarr with the movies and one for Sonarr with the shows. ^[1] If several people in a household want one list kept up to date, signed-in users can combine several IMDb lists into one Radarr link and one Sonarr link, so the whole household's list stays current in both apps. ^[1] If the job is reading TMDB details while you browse, Watcharr's covers each open TMDB's plot, genres, rating, backdrop and trailer. ^[1] For lists that start on Trakt.tv, the Traktarr fact is about that source. ^[4] If you want alerts when new releases arrive, Simkl says it sends notifications when a new episode or movie is released. ^[7] For a tracker that runs on your own machine, Ryot's page lists self-hosted options. ^[8] FlexGet's page says it directly integrates with Deluge, transmission, uTorrent, rTorrent and SABnzb. ^[9] Its page also reports a critical security vulnerability that allows remote code execution with specially crafted archives when using the decompress plugin. ^[9] Confirm the version you run before you install any tool with that plugin.

Questions to ask before you choose

Ask whether the tool reads the public IMDb list you already keep, including lists opened on a phone. Check whether it gives one link for Radarr and one for Sonarr, or one shared link for a whole household. Ask how it matches shows to database ids, and what it does with a show it cannot match. Look at how often the list is re-read, and what the tool serves when a read fails. Ask whether it needs an account, whether a hosted version exists, and whether you can run it yourself. If you plan to use the tool for anything beyond personal use, check the licence terms first.

Frequently asked questions

Which IMDb list sync tool should TMDB rating collectors 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 gives you links for those apps, how it matches shows, and how often it re-reads the list. If you want to browse TMDB details or keep a household list, check those features before the others. If your lists come from Trakt.tv or another source, compare the sources each tool names, since the facts on this page name different ones.

Can Watcharr add an IMDb list to Radarr and Sonarr without installing anything?

Yes, the version run on the publisher's own server needs nothing to install and no account. ^[1] You paste one public IMDb list and get one link for Radarr with the movies and one for Sonarr with the shows. ^[1] Radarr checks the link every 15 minutes and Sonarr checks it every 5. ^[1]

Can Watcharr show TMDB details for each title on an IMDb list?

Yes, the page shows the list's covers in a row, and each one opens TMDB's plot, genres, rating, backdrop and trailer. ^[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]

Can Watcharr keep a household list up to date?

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

Does Kometa read IMDb lists the way Watcharr does?

The facts this page can cite say Kometa can create collections and overlays using TMDb and IMDb. ^[5] They also say it connects to third-party services including TMDb and IMDb. ^[5] They do not describe how it reads a list, so check its own documentation for that before you choose. Watcharr takes one public IMDb list and gives one link for Radarr and one for Sonarr, so compare the two on that point. ^[1]

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

Try Watcharr