How to merge Trakt, IMDb and anime trackers watchlists for multi service syncers in 2026

Merge Trakt, IMDb and anime tracker watchlists, then see how signed-in Watcharr users combine IMDb lists for Radarr and Sonarr.

By VLClean · 2026-10-25

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

Multi service watchlist syncers can combine their Trakt, IMDb and anime tracker lists by settling on one shared list, deciding how titles get into it, and pointing their library tools at the merged result. Watcharr lets signed-in users combine several IMDb lists into one Radarr link and one Sonarr link for the whole household. ^[1]

To merge lists from Trakt, IMDb and anime trackers, set up a single target list, choose how each service's titles land on it, and link the combined list to the tools that add titles to the library.

Option	How lists are merged	Cost details
Watcharr	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]	not published
Hand built target list	Titles from Trakt, IMDb and anime trackers are placed on one list by hand and kept current.	not published
Export from source services	Titles are exported from each service and merged into one list through the chosen export tool.	not published

What you need before you start

A multi service watchlist syncer merges lists that live on several services, so the first need is a list of every place a title is currently saved. Write down the Trakt lists, the IMDb lists and the anime tracker lists that should end up merged, and mark which ones are public, because merging usually works with lists a service lets others read.

Pick the single list that will hold the merged titles and decide how a title from each other service reaches it. A merged list works only if titles from Trakt and anime trackers can be moved onto it, so check what each service offers for exporting titles before you begin.

The tools that add movies and shows to the library define the target. Radarr and Sonarr are free helper programs that many library owners run to find and add movies (Radarr) and shows (Sonarr). Decide which merged list the library tools will read, and who keeps that list maintained when a new title is saved on a source service.

Step by step

List every watchlist you want merged and note which service each one lives on, so nothing is left out of the merge.

Choose the one merged list that will act as the target, and confirm that titles from Trakt, IMDb and anime trackers can all be placed on it.

Move the titles from each source onto the target list once, either by hand or with the export tool each service provides, and remove titles you no longer want.

Decide how a title saved later on a source list reaches the merged list, because a merger only matters if it keeps running after setup.

Point the library tools at the merged list and check that a few known titles appear as expected, since the merge is useful only when the library sees the combined result.

Keep the merged list up to date on a regular day each week, and check for titles that the library tools could not match or add.

Give the merged list a review after the first week to fix anything that confused the process, and note which source lists need the most attention.

Tools that can do it

Watcharr is made by the team that publishes this site. Watcharr accepts any public IMDb watchlist or list from the desktop site, the phone site or IMDb's other-language pages. ^[1] You paste one public IMDb list and get one link for Radarr with the movies and one for Sonarr with the shows. ^[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] 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]

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] The page shows the list's covers in a row, each opening TMDB's plot, genres, rating, backdrop and trailer. ^[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] 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] Watcharr runs as one Cloudflare app with a Cloudflare database, plus a GitHub job that reads IMDb. ^[1]

No other tool is named here because no source facts about other tools were provided. Before choosing a tool, check how it merges lists from more than one service, how new titles are picked up, and how the merged result reaches the library.

Common mistakes to avoid

Avoid merging lists without deciding how a title saved later gets to the merged result, because a one time merge stops being useful as soon as anyone adds a new title.

Avoid mixing private lists into the merge. Merging usually works with lists a service lets others read, so check the visibility of every source list before you rely on it.

Check whether the library tools can match each title before relying on the merged list. Keep a note of skipped titles and decide what to do with them.

Avoid forgetting who keeps the merged list maintained. A merged list grows stale if no one adds new titles or removes old ones, so name a person and a regular day for upkeep before you finish.

Frequently asked questions

Can Watcharr merge Trakt, IMDb and anime tracker lists?

Watcharr accepts any public IMDb watchlist or list from the desktop site, the phone site or IMDb's other-language pages. ^[1] Signed-in users can combine several IMDb lists into one Radarr link and one Sonarr link. ^[1] Check how each service exports its titles to an IMDb list before relying on Watcharr for the full merge.

Does Watcharr need anything installed to merge lists?

The hosted version 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] 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, with older versions under MIT, and commercial use is not licensed. ^[1] ^[1]

How does Watcharr keep a merged list up to date?

Each link acts like a small Radarr or Sonarr server, so Radarr checks it every 15 minutes and Sonarr 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] If a read of the list fails, the links keep serving the last list that loaded correctly. ^[1] These are scheduled checks, not instant updates, and a run can be delayed, so plan on the merged list updating on its check cycle.

What happens when a title cannot be matched by Watcharr?

Watcharr looks up TheTVDB ids through TVMaze and TMDB, leaves out shows it can't match, and tells you which ones it skipped. ^[1] Watcharr leaves out shows it can't match and tells you which ones it skipped. ^[1] Keep a list of the skipped titles and decide whether to add them another way, because they are left out of the merged result.

How many lists can Watcharr combine into one link?

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] The number of lists an account can merge is not stated here, so check the current limit with Watcharr. Check whether each source list must be a public IMDb list, and whether titles from Trakt or anime trackers need to be moved onto one.

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

Try Watcharr

Sources

Watcharr's own description of itself (the product of this site's publisher)