YouTube Sub Blur

Blur hard subtitles on YouTube videos for language immersion

As of June 2026, YouTube Sub Blur has users in the Accessibility category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.4.4
Manifest V3
90-day change · In the last 90 days this extension 1 version update.

History

9 snapshots

Tracking since Apr 1, 2026.

1.1K521.5-33.559999999999945Apr 1, 2026Jun 6, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 2026481.4.3
Apr 17, 2026431.4.4
Apr 24, 2026541.4.4
May 1, 2026511.4.4
May 8, 2026521.4.4
May 12, 2026681.4.4
May 18, 2026641.4.4
May 24, 2026621.4.4
May 31, 20261.0K1.4.4
Now1.4.4

Permissions & access

Permissions
storage
Host access
http://127.0.0.1:7331/*, http://127.0.0.1:8765/*

Screenshots

YouTube Sub Blur screenshot 1YouTube Sub Blur screenshot 2

About

Hide hard-coded (burned-in) subtitles on YouTube videos with a movable, resizable blur box. Built for language immersion learners.

Features:

Toggle blur overlay with Alt+B
Drag to move, drag edges to resize -- position is saved automatically
Review Mode (Alt+R) -- rewinds and replays with subs visible, then blurred to test your listening
1-pass or 2-pass review (2-pass also replays blurred to confirm listening)
Auto Review Mode -- continuous mode that loops chunk by chunk
OCR subtitle mining (Alt+M) -- extract text from hard subs for dictionary lookup
Anki integration -- automatically attaches screenshot and sentence audio to new cards
Adjustable blur strength, rewind duration, and more in settings
The blur box works instantly with no setup. OCR and Anki features require a local Python server -- see GitHub for instructions.

Setup guide & source code: https://github.com/kenzofnu/Youtube-Sub-Blur

Technical

Version
1.4.4
Manifest
V3
Size
16.81KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
hmmnmcgcofibhdgiebicacdpihhcplgl
Developer ID
u29abbefc5ba73957c0e2dcbc9e793f99
Developer Email
[email protected]
Created
Mar 11, 2026
Last Updated (Store)
Apr 1, 2026
Last Scraped
Jun 6, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 6, 2026.