De-cussifier icon

De-cussifier

by Velocity50 · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 21 Oct 2026

Mutes YouTube videos when blocked words appear in captions.

Users
16
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#167K
#139K among extensions
Version
1.3
updated 23 Jun 2026

Users

monthly, 5 months
01020May 2026Aug 2026Oct 2026
Latest, 21 Oct 2026: 16 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months
012May 2026Aug 2026Oct 2026
Latest, 21 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About De-cussifier

HOW IT WORKS This extension scans YouTube captions in real time. When a blocked word is detected, the video is muted for your selected mute duration. Important: captions must be enabled for the extension to work. BLOCKED WORDS: YouTube censors cuss words like f*ck and sh*t as the following: [ __ ] If you want those censored words to be blocked, add: [ __ ] to your blocked words list. Also add the actual words separately (for example: fuck, shit), because captions may sometimes display alternative spellings such as: "Fuck you!" when someone is quoting something. SAVING CHANGES After making a change, for example changing the blocked words or mute time, click "Save" for the changes to take effect. DEFAULT WORDLIST The extension includes a default blocked word list. Once you edit the blocked words yourself, your custom list replaces the default list. TIP: MAKE CAPTIONS LESS VISIBLE Go to: Settings > Captions > Options: - Font color: black - Background opacity: 0% - Window opacity: 0% - Font opacity: 25% This makes the captions way less visible if you don't like the captions, but still want to avoid swear words. TROUBLESHOOTING - Make sure the captions are enabled - Click "Save" after making changes - Refresh YouTube - Manage the extension permissions: Go to: Extensions > Manage extensions > Details > Site settings > Allow JavaScript and Sound UPDATE YouTube changed its way of presenting captions. This causes the extension to break and not work properly anymore. There is a fix by muting the whole caption. There is also a mode where you can use the average WPM of a human to predict the bad word, but its not fully implemented yet. I am working on using the TextTrack API in which blocking words is way more precise, but that's still a long way to go.

Growth

WindowUsersChangeRatingsRating
7 days+1+6.7%00.00
30 days−1−5.9%00.00

Version history

3 versions recorded
1.323 Jun 2026
1.119 May 2026
1.0.015 May 2026

Details

Category
Tools
First seen
15 May 2026
Size
23 KB
Languages
en-US
Pricing
Free
Extension ID
pedgflhngaihhoofpkgnogakclaeojpi

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
storage
Site access
https://www.youtube.com/*

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