Comparison
Ways to Filter Profanity on YouTube, Compared
Restricted Mode, YouTube Kids, supervised accounts, word-list extensions, and caption-based AI muting compared: what each one filters and what it misses.
YouTube's own tools (Restricted Mode, YouTube Kids and supervised accounts) decide which videos someone can watch. They don't remove single words from a video you allow. Browser extensions work inside the video instead, either by matching captions against a word list or by having AI read the caption text. Both extension methods need captions.
The short version
The first three rows are Google products. The last two are categories of browser extension. Bleepster is in the last row. It is an independent Chrome extension and is not affiliated with YouTube or Google. The Google rows were last checked against Google's help pages on October 22, 2026.
| Option | What it filters | Where it works | What it misses | Cost |
|---|---|---|---|---|
| Restricted Mode | Whole videos. YouTube uses signals like title, description and metadata to hide videos. Comments are hidden too. | Set per browser or device, and per profile. | Words inside a video that stays visible. YouTube says quality may vary by language. | Free |
| YouTube Kids | Whole videos and channels, chosen by age setting or approved by a parent. | The separate YouTube Kids app. | Words inside an allowed video. YouTube says no algorithm is perfect. | Free |
| Supervised accounts | Whole videos, by content setting: Older kids, Teens or Older teens. | The child's signed-in Google account. | Words inside an allowed video. Older kids allows infrequent mild offensive language; Teens allows frequent offensive language. | Free |
| Word-list filter extensions | Words in the captions that match a list. | The browsers the extension supports. | Words missing from the list, misspelled captions, and harmless words that look like listed ones. | Varies by extension |
| Caption-based AI muting (Bleepster) | Words and phrases that AI flags in the caption text, muted or bleeped during playback. | YouTube in Chrome on desktop. | Videos without usable captions, caption and AI mistakes, and anything visual. | Free for 10 new videos, then $4.99/month or $19.99 lifetime |
The first three rows answer "should this video be on screen at all?" The last two answer "what should be silent in this video?" Most families who care about language end up wanting both.
Restricted Mode
Restricted Mode is an optional setting. According to YouTube's help page, it uses signals like a video's title, description and metadata, along with Community Guidelines reviews and age restrictions, to hide videos that may be mature. It has to be turned on in each browser and each profile. With it on, comments are hidden.
Family Link parents can set Restricted Mode for a child so the child can't change it, but only when the child isn't eligible for a supervised experience. Schools, libraries and some mobile carriers can also enforce it. When a video passes the filter, it plays with its full audio. We look at this in more detail in does YouTube Restricted Mode filter swearing?
YouTube Kids and supervised accounts
YouTube Kids is a separate app with Preschool (4 and under), Younger (5 to 8) and Older (9 to 12) settings. It offers a smaller selection of videos than a supervised account. A parent can also approve content so the child sees only handpicked videos, channels and collections, with no search. YouTube Kids uses a mix of algorithmic filtering, user input and human review.
A supervised account is a regular YouTube account with limits, meant for kids under 13 or the local age of consent. The content settings are Older kids (generally 9+), Teens (generally 13+) and Older teens (generally 16+). Older guides use the earlier names. On these accounts, kids can't post comments and some features are off.
Neither option edits the audio of a video it allows. For help choosing between the two, see YouTube Kids vs supervised accounts.
Word-list filter extensions
A word-list extension reads the caption text, compares each word with a list, and mutes or hides the matches. The method is simple and easy to understand. You can usually see the list and add your own words.
The weak points come from the list itself. It catches only the spellings it contains, so slang, inflected forms and caption typos slip through. It also can't tell a harmless word from an offensive one that is spelled the same, so it can mute words that were fine. Each language needs its own list. Read more in why word-list profanity filters miss and overblock.
Caption-based AI muting
Bleepster reads the caption or transcript track of a YouTube video. The caption text goes through Bleepster's authenticated server to an included context-aware AI model, so you don't need an API key. The detected spans are matched to the caption timing. During playback the extension lowers the tab audio locally and plays silence or a bleep. Audio is never uploaded. The full pipeline is on how Bleepster works.
The limits matter as much as the method:
- It needs captions. When a video has no usable captions, Bleepster reports that it can't protect it instead of acting as if it can.
- Captions can be wrong, and the AI can make mistakes, so a word can be missed or mistimed.
- It runs in Chrome on desktop. It doesn't filter visuals or choose which videos appear.
- You need to sign in to Bleepster.
YouTube's own page on automatic captions explains why captions are sometimes missing. For families, Bleepster adds a Parent PIN that locks the extension settings and a Safe start option that holds playback until analysis is ready. Free covers 10 new videos. Premium is $4.99 a month or $19.99 once for lifetime access, for one household on up to 5 devices or Chrome profiles. Details are on the pricing page.
Combining methods
These tools don't compete with each other much. An account type or the YouTube Kids app limits what shows up. Restricted Mode can cover a shared browser profile. A caption-based extension on the desktop handles the language inside videos that got through. The family setup guide walks through that combination.
Which one should you use?
- A young child on a tablet: YouTube Kids with approved content only. Bleepster doesn't run there.
- A preteen or teen with their own account: a supervised account at the right content setting. Teens and Older teens allow more offensive language, so add a desktop filter if that matters to you.
- Family viewing on a computer: a captioned video in Chrome with Bleepster, plus whatever account limits you already use.
- A shared or school computer: Restricted Mode, which the network admin may already enforce.
Questions people ask
Does YouTube have a built-in swear filter for audio? Not that Google's documentation describes. YouTube Studio has a setting that replaces potentially inappropriate words with "[ __ ]" in automatic captions, but YouTube saysit doesn't affect the audio.
Do these work on a TV?Bleepster doesn't. It is a Chrome extension for desktop.