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Comment blocklist generator for Instagram, Facebook, TikTok and YouTube

Q: How many words can I add to Instagram Hidden Words?

Instagram doesn't publish a limit for custom words and phrases. Separate entries with commas; they apply to comments on your posts and to message requests. Put the terms you actually see in your comments first, and keep the list focused so it stays easy to review.

Q: Does Facebook block misspellings of the words I add?

Yes. Facebook automatically hides common variations of your keywords, including misspellings, plurals, abbreviations and words written with numbers or symbols (for example tr33 or t.r.e.e), and they don't count toward the 1,000-keyword limit. That is why this tool leaves leetspeak and spacing variants out of the Facebook list.

Q: How do I block words on TikTok?

Go to Profile > Menu > Settings and privacy > Privacy > Comments > Filter keywords in comments, turn on Filter specific keywords and add your keywords. Matching comments stay hidden until you approve them. TikTok LIVE has its own keyword filter, documented at up to 500 keywords.

Q: What happens to YouTube comments that contain blocked words?

YouTube holds them for review in YouTube Studio for up to 60 days, and they aren't public unless you approve them. It also holds comments that closely match your blocked words. Comments from users on your approved list skip the filter.

Q: Why does a comment with a blocked word still show up?

Most often the word isn't really the same word: an invisible character, a lookalike letter from another alphabet or styled Unicode letters break exact matching. Paste the comment into the tester above to see what the filter reads. On YouTube, blocked words also apply only to new comments, and approved users bypass them.

To block words in comments, paste a comma-separated list into each app’s own filter: Hidden Words on Instagram, blocked words on your Facebook Page, Filter keywords on TikTok and Blocked words in YouTube Studio. This free tool builds that list in six languages and tests it against disguised spam.

Free tool by

Build your blocklist

Pick languages and categories. The list is formatted for each app's own comment filter.

Languages

Paste it into each app

154 keywordsInstagram doesn't publish a limit for Hidden Words.

investment manager, account manager, trading mentor, crypto trading, crypto signals, crypto investment, bitcoin investment, binary options, double your money, passive income, financial freedom, guaranteed profit, guaranteed returns, earn from home, make money online, make money fast, work from home, recover your account, recover hacked accounts, hacked account, account recovery, hire a hacker, ethical hacker, gift card, loan offer, instant loan, dm me to invest, message me to invest, invest with, weekly profit, expert trader, sugar baby, crypto, bitcoin, btc, usdt, ethereum, binance, forex, nft, airdrop, metamask, trust wallet, seed phrase, cashapp, cash app, western union, moneygram, sugar daddy, sugardaddy, sugar mommy, you have won, you've won, you've been selected, you have been selected, you are our winner, you're our winner, lucky winner, winner dm, dm to claim, claim your prize, claim your reward, claim your gift, to claim your, message the official page, contact the official page, contact our official account, giveaway winner, selected winner, selected as a winner, congratulations you won, prize claim, pay the shipping, shipping fee to receive, click the link to claim, within 24 hours to claim, official support, support team, customer support team, help desk, helpdesk, technical support, verified account, official account, backup account, second account, my new account, my new page, follow my new account, admin here, page admin, dm the admin, contact our agent, security team, your account will be deleted, your page will be disabled, your page will be deleted, copyright violation, copyright infringement, community guidelines violation, appeal here, get verified, blue badge, blue tick, meta support, instagram support, facebook support, tiktok support, youtube support, check my bio, link in my bio, check my profile, visit my profile, look at my profile, click my profile, see my page, follow back, follow for follow, like for like, free followers, buy followers, cheap followers, get followers, promote it on, promote your page, dm for promo, dm me for promo, dm for collab, send it to @, whatsapp me, text me on, message me on telegram, add me on snap, hot pics, nudes, 18+ content, free iphone, free gift card, whatsapp, telegram, wa.me, t.me/, bit.ly, tinyurl, linktr.ee, onlyfans, 0nlyfans, fansly, f4f, l4l, s4s, sub4sub, follow4follow, like4like

Where to paste it

Go to your profile and tap Menu (☰) in the top right.
Under How others can interact with you, tap Hidden words.
Tap Add words separated by commas… and paste your list.
On a computer: More > Settings > Hidden Words > Manage custom words and phrases.

Words are hidden from comments on your posts and from message requests. In Comments, also set Hide unwanted comments to Some or More.

Official help page

Test a comment

See the text a keyword filter reads, and what it misses.

Comment to test

Try an example

Instagram's filter would likely miss this. Normalised matching catches it.

What Instagram's filter reads

The exact characters, as typed

This changed my life 🙏 I started with $500 and now I make $6,200 a week with my сrурtо trаding mZWSPentor. Just WhatsWJApp him: +1 409 555 0187

No match

After normalisation

Invisible characters removed, lookalikes and spacing folded

this changed my life i started with 500 and now i make 6 200 a week with my crypto trading mentor just whatsapp him 1 409 555 0187

Caught bytrading mentorcrypto tradingcryptowhatsapp

Invisible characters removed: 2
Lookalike letters mapped: 5

Simulates exact keyword matching. Facebook and YouTube also catch some close variants.

Keyword lists catch the obvious. Blabla's AI catches the rest.

Disguised spam, negativity and scams under your ads, handled 24/7 on Instagram, Facebook, TikTok and YouTube.

In a real spam wave we analysed, exact keyword matching caught 31 of 335 disguised comments. Blabla's normalised matching caught 326.

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No credit card required

How AI moderation works

The tool runs in your browser. Nothing you type or paste is sent to Blabla.

How to add your list to each app

Instagram: Hidden Words

1. Go to your profile and tap Menu (☰) in the top right.

2. Under How others can interact with you, tap Hidden words.

3. Tap Add words separated by commas… and paste your list.

4. On a computer: More > Settings > Hidden Words > Manage custom words and phrases, then Submit.

Hidden Words applies to comments on your posts and to message requests. Instagram doesn’t publish a limit for custom words. In Comments, also set Hide unwanted comments to Some or More. More tips in our guide on how to filter Instagram comments.

Facebook Page: blocked words and profanity filter

1. Switch into your Page, click your Page photo (top right), then Settings & privacy > Settings.

2. Click Followers and public content.

3. Click Hide comments containing certain words from your Page, paste your list and click Save.

4. On the same page, turn on Hide posts and comments with profanity.

Facebook accepts up to 1,000 keywords and already hides common variations (misspellings, plurals, numbers or symbols such as tr33 or t.r.e.e). Hidden comments stay visible to the person who wrote them and their friends. See also how to filter and manage comments on Facebook.

TikTok: Filter keywords

1. Tap Profile, then Menu (☰), then Settings and privacy.

2. Tap Privacy, then Comments.

3. Under Comment filters, tap Filter keywords in comments.

4. Turn on Filter specific keywords, tap Add keywords and enter your list.

Filtered comments stay hidden until you approve them in Review filtered comments. TikTok doesn’t publish a limit for video comments; its LIVE keyword filter takes up to 500 keywords of 30 characters. Bots are a TikTok-specific problem, covered in TikTok comment bots: what to know.

YouTube Studio: Blocked words

1. Sign in to YouTube Studio and click Settings.

2. Click Community moderation, then Content controls.

3. Under Blocked words, paste your list (words separated by commas).

4. Click Save.

Comments that contain or closely match your blocked words are held for review for up to 60 days (Comments > Held) and aren’t public unless you approve them. The list covers all your videos, live chat and posts, and applies to new comments.

Why keyword filters miss disguised spam

Native filters match the characters you typed. Spammers know it, so they change the characters and keep the message: an invisible character inside a word (a zero-width space or a word joiner), a Cyrillic letter that looks Latin (о instead of o), or bold letters from the Unicode maths block (𝐥𝐨𝐥). On screen it reads the same. To a keyword filter it is a different word.

We measured it on a real spam wave in September 2026, on one account Blabla protects (figures are aggregated). Over 14 days, 335 comments pushed the same link. Only 31 wrote it in plain text. The other 304 slipped an invisible character or a lookalike letter into the domain. Exact keyword matching caught 31 of 335. Normalising the text first (removing invisible characters, folding styled and lookalike letters) caught 326.

Variants help, up to a point. Facebook already hides common variations such as tr33, and YouTube holds comments that closely match your words. But no list can hold every mix of invisible characters and lookalike letters, and Facebook caps the list at 1,000 keywords.

Spam is also the smaller part of the job. Across Blabla’s paying customers, keyword blocklists produce about 4% of hidden comments, while about 72% come from one AI rule that reads tone: insults, harassment, bad-faith attacks and scams written in new words. A list can’t tell sarcasm from praise, or a heated complaint from abuse.

• Paste a focused list into each app’s native filter, with your brand-specific terms first.

• Turn on the built-in filters too: Hide unwanted comments (Instagram), the profanity filter (Facebook), Filter unwanted comments (TikTok) and Basic or Strict moderation (YouTube).

• For ads and busy accounts, add AI comment moderation that normalises text before matching and reads the tone of every comment, 24/7.

how to filter Instagram comments · how to filter and manage comments on Facebook · TikTok comment bots: what to know · AI comment moderation

Comment blocklists: your questions

How many words can I add to Instagram Hidden Words?

Does Facebook block misspellings of the words I add?

How do I block words on TikTok?

What happens to YouTube comments that contain blocked words?

Why does a comment with a blocked word still show up?

Keyword lists catch the obvious. Let AI catch the rest.

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Boost your sales

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Ad comment moderation

Plan your content

Answer your customers

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Smart AI

Automations

Moderation

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Comment blocklist generator

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Comparisons

Blabla vs Manychat

Blabla vs Metricool

Blabla vs Planable

Blabla vs Hootsuite

Blabla vs Sprout Social

Blabla vs Bodyguard

Blabla vs Agorapulse

Language

Select Language

🇬🇧 English

Design : Poulpo

Turn every conversation into revenue.

COMING SOON!

Solutions

Industries

Agencies

Creators

Ecommerce

Use cases

Boost your sales

Protect your brand image

Gain qualified followers

Ad comment moderation

Plan your content

Answer your customers

Products

Features

All-in-one

Smart AI

Automations

Moderation

Channels

Instagram

Facebook

TikTok

Youtube

Ressources

Learning

Blog

Guidetour

Instagram giveaway picker

Comment blocklist generator

Support

Help center

Get in touch

Comparisons

Blabla vs Manychat

Blabla vs Metricool

Blabla vs Planable

Blabla vs Hootsuite

Blabla vs Sprout Social

Blabla vs Bodyguard

Blabla vs Agorapulse

Language

Select Language

🇬🇧 English

Design : Poulpo