- Mute is about your own attention: their posts leave your timeline, nothing else changes.
- Block is about their access: no following, no replying, no reposting, no messaging you.
- Since October 2024, a blocked account can still read your public posts — it just cannot interact with them.
- Neither action notifies anyone.
Block and mute look like two strengths of the same setting and they are not. One manages what you see; the other manages what someone else can do. Getting that distinction right is the difference between a timeline that is calmer and a situation that is actually resolved — and X changed part of the answer in late 2024, which caught a lot of people out.
The short answer
Mute when the account is fine and the noise is the problem: a friend live-tweeting a sport you do not follow, someone whose volume you like less than their company. Block when the account itself is the problem: spam, scams, bots, harassment, anyone you do not want reaching you at all.
What blocking does in 2026
When you block an account on X:
- It cannot follow you, and any existing follow is removed in both directions.
- It cannot like, reply to, repost or quote your posts.
- It cannot send you a direct message.
- Its posts and replies do not appear in your timeline.
- It is not added to your list of muted accounts — blocking is its own, separate list you can review and export.
- It is not notified. It can discover the block by visiting your profile, which says so.
The change that surprised people
For most of X's history, blocking also meant the blocked account could not see your posts while signed in. In October 2024, X changed that: if your account is public, accounts you have blocked can view your public posts. They still cannot engage with them — no likes, replies, reposts or quotes — but they can read.
X's stated reasoning was transparency: someone who has been blocked should be able to see whether the person blocking them is posting about them. The change was widely criticized on the grounds that it weakens blocking as a protection against people who are determined to keep watching you.
The practical consequence: blocking is a reliable way to stop someone interacting with you, and no longer a reliable way to stop them reading you. If being unreadable matters, protecting your account is the setting that does it — blocked accounts cannot see the posts of a protected account.
What muting does
Muting is entirely one-sided and entirely about your feed:
- Their posts stop appearing in your timeline.
- Follows are untouched, in both directions. Muting someone does not unfollow them.
- They can still reply to you, quote you, and message you if your settings allow it.
- Depending on whether you follow them, their replies and mentions may still reach your notifications.
- They are never notified and have no way to find out.
X also offers muted words, which is a separate feature aimed at topics rather than accounts. It hides posts containing a word or phrase from your timeline, your notifications or both, optionally only from people you do not follow. Useful, and limited in ways worth knowing about — it only ever hides, and it only ever looks at post text, never at display names, handles or bios. That comparison is the subject of blocking by keyword or regex.
Side by side
| Mute | Block | |
|---|---|---|
| Their posts in your timeline | Hidden | Hidden |
| They can follow you | Yes | No |
| They can reply, repost, quote | Yes | No |
| They can message you | Yes | No |
| They can read your public posts | Yes | Yes, since Oct 2024 |
| They can read a protected account's posts | Only if they follow you | No |
| Existing follows | Kept | Removed both ways |
| They are notified | No | No |
| They can find out | No | Yes, from your profile |
| Reversible | Yes | Yes |
Which one to reach for
| Situation | Use | Why |
|---|---|---|
| Reply spam, airdrop bots, giveaway accounts | Block | Muting leaves them replying under your posts tomorrow. |
| Support impersonators and scam accounts | Block, and report | They are targeting you specifically; hiding them helps nobody. |
| Someone harassing you | Block, and protect your account if reading matters | Blocking stops interaction; protection stops reading. |
| A friend posting too much about one thing | Mute | No relationship damage, fully reversible, they never know. |
| A topic or a spoiler | Muted words | The account is not the problem; the subject is. |
| An account you need to keep seeing in replies but not in your feed | Mute | Blocking would cut the thread you are in. |
Do they find out?
Neither action sends a notification. Mute is genuinely undetectable from the other side. Block is discoverable, but only if someone goes looking: visiting the profile of an account that has blocked them shows a notice saying so. Nobody is told; anybody persistent can check.
When it is not one account but eighty
Everything above assumes a decision you make once about a person. Reply spam is a different shape of problem: dozens of throwaway accounts, all following the same few templates, appearing under every post that gets traction. The decision is easy and the clicking is not — X gives you one block at a time, three clicks each, and nothing that helps you find them.
That is the gap X Spam Blocker fills. It performs the same block X does, through your own session, but it adds one icon per post instead of a menu, finds the accounts by keyword, regex or hidden-character padding, gathers them into a list you confirm, and logs every one with a one-click undo. The full workflow, including the pace that keeps you clear of X's rate limits, is in how to mass block accounts on Twitter.
Frequently asked questions
Can someone I blocked still see my posts on X?
If your account is public, yes — since a change X shipped in October 2024, blocked accounts can view your public posts. They still cannot like, reply, repost or quote them, cannot follow you and cannot message you. If your account is protected, blocked accounts cannot see your posts at all.
Does X tell someone I blocked or muted them?
No, in both cases. There is no notification. A blocked account finds out if it visits your profile, which says it has been blocked. A muted account has no way to tell at all.
Does blocking remove a follow?
Yes. Blocking removes the block from your followers and stops you following them, in both directions. Muting changes nothing about who follows whom.
Is muting or blocking better for reply spam?
Blocking, clearly. Muting an account hides its posts from your timeline but leaves it free to keep replying to you, and you will often still see those replies in context under your own posts. Spam accounts are exactly the case where you want the account stopped rather than hidden.
Can I see a list of everyone I have blocked?
Yes — Settings → Privacy and safety → Mute and block → Blocked accounts. X also lets you export that list. A locally kept log, like the one in this extension, additionally records why each account was blocked, which the X list does not.
Block spam accounts on X in bulk, after you confirm
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