IMDb list sync tools for multi service watchlist syncers

Compare IMDb list sync tools and how each moves a watchlist into Radarr and Sonarr for a multi service setup.

By VLClean · 2026-10-18

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

A multi service watchlist syncer's goal is one public IMDb list that feeds movies into Radarr and shows into Sonarr without rebuilding it by hand. ^[1] Watcharr splits one pasted list into a link for Radarr with the movies and one for Sonarr with the shows, and each link is read on its own schedule. ^[1] ^[1]

Option	How it syncs IMDb lists	Cost details
MDBList	Creates dynamic, auto-updating movie and show lists tailored to user preferences. ^[2]	not published
Trakt	Free on web, iOS and Android. ^[3]	not published
Traktarr	Uses Trakt.tv to find shows and movies to add to Sonarr and Radarr. ^[4]	not published
Simkl	Automatically tracks what is being watched and offers Free, Pro and VIP membership options. ^[5] ^[5]	Free, Pro and VIP membership options ^[5]
Ryot	Tracks books, movies, TV shows, workouts and daily habits, and offers a free trial. ^[6] ^[6]	Free trial; other costs not published
Kometa	Integrates with Sonarr and Radarr to automate library growth. ^[7]	not published
Listrr	Creates personalized lists for shows and movies with many filters. ^[8]	not published
FlexGet	Supports torrents, nzbs, podcasts, comics, TV, movies, RSS, HTML, CSV and more. ^[9]	not published
Watcharr	Splits one pasted public IMDb list into one link for Radarr and one for Sonarr. ^[1]	No fee published; commercial use is not licensed. ^[1]

What multi service watchlist syncers need from IMDb list sync tools

Multi service watchlist syncers run several media apps side by side and want the titles they pick on IMDb to reach each place without being typed twice. The common job runs one way: take the lists a household keeps public on IMDb and turn them into something Radarr and Sonarr can read. Watcharr splits one pasted public IMDb list into 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 useful tool keeps a list working when the app rechecks and says which titles came through. Shows without a TheTVDB id are skipped, so the number of matched shows is not the number of titles on the list. ^[1] Owners also want to know what their list can and cannot feed, and what happens when a list read fails. Options differ in which public IMDb lists they accept, how often they refresh, and what they tell the owner when something goes wrong.

MDBList for multi service watchlist syncers

MDBList is a tool for creating dynamic, auto-updating movie and show lists tailored to user preferences. ^[2] It syncs the watchlist, ratings and progress directly with Trakt.tv. ^[2] A multi service syncer should check which of its lists Radarr and Sonarr can read and how the sync is scheduled.

Traktarr for multi service watchlist syncers

Traktarr uses Trakt.tv to find shows and movies to add to Sonarr and Radarr. ^[4] It can add a single show to Sonarr. ^[4] It runs on Debian OS and can work in other operating systems. ^[4] A syncer should check which IMDb lists Traktarr accepts and how its scheduled run reports titles it could not match.

Kometa for multi service watchlist syncers

Kometa integrates with Sonarr and Radarr to automate library growth. ^[7] It lets users customize media library metadata, collections and overlays. ^[7] Its configuration file contains URLs and credentials needed to connect to services like Plex and TMDb. ^[7] A syncer should check how Kometa turns an IMDb list into titles Radarr and Sonarr will fetch.

Listrr for multi service watchlist syncers

Listrr creates personalized lists for shows and movies with many filters for a Plex server setup. ^[8] Every list it creates gets updated automatically. ^[8] It lets you filter by ratings and the amount of votes. ^[8] A syncer should check whether the lists Listrr builds can be read by Radarr and Sonarr and on what schedule.

FlexGet for multi service watchlist syncers

FlexGet lets you manage and track series and movies directly from Trakt.tv, TheTVDB or IMDb. ^[9] It directly integrates with Deluge, transmission, uTorrent, rTorrent, SABnzb and more. ^[9] It can be run in daemon mode. ^[9] A syncer should check how FlexGet takes an IMDb list into Radarr and Sonarr and how its runs are scheduled.

Watcharr for multi service watchlist syncers

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] 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, 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 other-language pages. ^[1] It looks up TheTVDB ids through TVMaze and TMDB, leaves out shows it cannot match, and tells you which ones it skipped. ^[1] If a read of the list fails, the links keep serving the last list that loaded correctly. ^[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 turning one public IMDb list into separate movie and show streams, Watcharr pastes the list once and returns one link for Radarr and one for Sonarr. ^[1] For knowing a list stays current when the app rechecks, Watcharr's links are read every 15 minutes by Radarr and every 5 by Sonarr. ^[1] For owners who already track on Trakt, MDBList syncs the watchlist, ratings and progress directly with Trakt.tv. ^[2] Traktarr uses Trakt.tv to find shows and movies to add to Sonarr and Radarr. ^[4] For library curation on top of the sync, Kometa integrates with Sonarr and Radarr to automate library growth and lets users customize metadata, collections and overlays. ^[7] ^[7] For building fresh lists to feed in, Listrr creates personalized lists for shows and movies with many filters and updates every list automatically. ^[8] ^[8] For a tool that reaches the download clients directly, FlexGet integrates with Deluge, transmission, uTorrent, rTorrent, SABnzb and more. ^[9] Owners should weigh which lists each tool accepts and what it reports when a title cannot be matched.

Questions to ask before you choose

Before choosing an IMDb list sync tool, check which public IMDb lists each option accepts and whether the list has to stay public to be read. Ask how often the tool re-reads the list and what it shows when a single read fails. Check what the tool does with a show that has no matching TheTVDB id, and whether skipped titles are reported. Ask whether the tool runs on the machine that owns the media apps or as a hosted service, and what that means for who sees the list. Check how credentials, such as the API key a media app uses, are handled. Also check the licence and whether commercial use is allowed, since a household-run tool and a service that is shared more widely have different needs.

Frequently asked questions

Can Watcharr move one IMDb list into both Radarr and Sonarr?

Watcharr splits one pasted public IMDb list into 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 inside Radarr or Sonarr adds the list using that app's API key without sending it anywhere else. ^[1]

Which IMDb lists does Watcharr accept?

Watcharr 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] 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]

What does Watcharr do with a show it cannot match?

Watcharr looks up TheTVDB ids through TVMaze and TMDB, leaves out shows it cannot match, and tells you which ones it skipped. ^[1] The count of synced shows is therefore not the count of titles on the list. If a read of the list fails, the links keep serving the last list that loaded correctly. ^[1]

Does Watcharr need anything installed or an account?

The hosted version of Watcharr needs nothing to install and no account. ^[1] Watcharr runs as one Cloudflare app with a Cloudflare database, plus a GitHub job that reads IMDb. ^[1] Its code is available to read under the PolyForm Noncommercial 1.0.0 licence, while older versions remain under MIT. ^[1] Commercial use is not licensed, and no commercial licence is for sale. ^[1]

Can Watcharr be used for commercial or public lists?

Commercial use of Watcharr is not licensed, and no commercial licence is for sale. ^[1] The code is available to read under the PolyForm Noncommercial 1.0.0 licence, with older versions remaining under MIT. ^[1] Anyone planning a setup that goes beyond a household should check the licence before relying on the hosted service.

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

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