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RateSync - Sync Letterboxd Rating to IMDb

Chrome extension by Tarnished · Lifestyle · Entertainment

A Chrome extension in Lifestyle · Entertainment with 7 users, barely installed.

Specific sites only: 3 match patterns.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
7
Rating
not rated yet
Users, last 17 days
+1
Version
1.5.0
Updated in the store
2026-04-24
Published
2026-04-24
Manifest
V3
Browser access
3 permissions, 3 site patterns

How it has moved

Users
+1 since 31.08
5-7 · 6 readings
  1. 2026-08-316
  2. 2026-09-045
  3. 2026-09-066
  4. 2026-09-075
  5. 2026-09-157
  6. 2026-09-167
Users
+1 since 31.08
5-7 · 6 readings
  1. 2026-08-316
  2. 2026-09-045
  3. 2026-09-066
  4. 2026-09-075
  5. 2026-09-157
  6. 2026-09-167

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 3 match patterns.

  • https://letterboxd.com/*
  • https://*.imdb.com/*
  • https://api.themoviedb.org/*
  • Read and change cookies on the sites it can access cookies
  • Watch the network requests your browser makes webRequest
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Tarnished publishes 4 listings we track, 471 users between them.

  1. Stremio Companion Tarnished · Lifestyle · Entertainment · published 2026-01-23 415 users ★ 5.0
  2. X-Ray for Twitter (X Location Viewer) Tarnished · Lifestyle · Social · published 2025-12-05 47 users ★ 5.0
  3. Eestify Tarnished · Productivity · Education · published 2026-06-25 2 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. Movie Ratings Sync Describes nearly the same job, smaller audience 21 users
  2. Letterboxd Helper Describes nearly the same job, smaller audience 40 users ★ 5.0
  3. More Ratings on Letterboxd Describes nearly the same job, smaller audience 289 users ★ 4.1
  4. IMDb. SYNc Describes nearly the same job, smaller audience 651 users ★ 3.2
  5. findratings Describes nearly the same job, smaller audience 6 users ★ 1.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.