Ext Ops Panel
Open the app

B2Y - YouTube 同步显示 Bilibili 弹幕

Chrome extension by 啊对对对 · Productivity · Tools

A Chrome extension in Productivity · Tools with 4 000 users, a small but real audience.

Specific sites only: 5 match patterns.

What the developer says, and 5 screenshots

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

Users
4 000
Rating
4.8 (28 ratings)
Users, last 16 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
2.0.0
Updated in the store
2026-05-16
Published
2025-08-04
Manifest
V3
Browser access
3 permissions, 5 site patterns

How it has moved

Users
unchanged since 01.09
4k · 3 readings
  1. 2026-09-014k
  2. 2026-09-134k
  3. 2026-09-164k
Rating
+0.006 since 01.09
reviewsrating 4.815-4.821 · 3 readings
  1. 2026-09-01reviews27rating4.815
  2. 2026-09-13reviews28rating4.821
  3. 2026-09-16reviews28rating4.821
Users
unchanged since 01.09
4k · 3 readings
  1. 2026-09-014k
  2. 2026-09-134k
  3. 2026-09-164k
Rating
+0.006 since 01.09
reviewsrating 4.815-4.821 · 3 readings
  1. 2026-09-01reviews27rating4.815
  2. 2026-09-13reviews28rating4.821
  3. 2026-09-16reviews28rating4.821

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: 5 match patterns.

  • https://api.bilibili.com/*
  • https://www.bilibili.com/*
  • https://www.youtube.com/oembed*
Show the remaining 2
  • https://raw.githubusercontent.com/*
  • https://pan.quark.cn/*
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

What changed recently

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

The publisher

啊对对对.

Like this one

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

  1. YouTube→B站弹幕 Describes nearly the same job, smaller audience 60 users ★ 4.0
  2. BYT弹幕助手 Describes a similar job, smaller audience 83 users ★ 5.0
  3. Danmaku for YouTube Describes a similar job, smaller audience 25 users ★ 4.0
  4. YouTube Danmaku Describes a similar job, smaller audience 9 users
  5. Danmaku Kakashi Describes a similar job, smaller audience 502 users ★ 5.0

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.