Mass Block Twitter
One-Click Solution to Clean Up Twitter/X Spam
Looking for the next version?
Mass Block Twitter has been rebuilt as two focused extensions with full cross-platform support, including iOS Safari.
Twitter Blocker
True-background batch blocking that runs for days or weeks without keeping a tab open, breaking past the 500-per-day limit MBT hit. Plus a one-click block button in many surfaces — no multi-step confirmation popups.
Learn more →Twitter Filter (free)
The home for Moderation Lists and keyword filtering (rebuilt as expression-based rules with no limits). Rules can mark, hide, or dynamically block matching accounts in your timeline. All previously-public moderation lists have been migrated as published community rules — your existing subscriptions have direct equivalents.
Learn more →Already paid for MBT Pro? Contact support with your receipt for a 100% upgrade coupon.
Features
Powerful tools to keep your Twitter feed clean and safe
Scan & Block
Batch blocking of suspicious accounts
Moderation Lists
Create and subscribe to moderation lists
Community Driven
Shared blocklist based on reports
Instant Blocking
One-click solution to clean up spam
Advanced Filtering
Enhanced keyword & profile filtering
Privacy First
100% open source
Pro Features
Unlimited Keywords
No 400-keyword limit like free version
Unlimited Moderation Lists
Create and subscribe to unlimited moderation lists
Unlimited Batch Block
Block unlimited accounts at once (free version limited to 150)
Early Access
Try new features before others
These Pro features are now split: Unlimited batch blocking lives in Twitter Blocker (with true background processing); Moderation Lists and unlimited keyword filtering live in Twitter Filter. Already a Pro user? Contact support for a free upgrade coupon.
Watch How It Works
See how Mass Block Twitter helps you clean up your Twitter feed by blocking spam accounts, suspicious profiles, and unwanted content in just a few clicks.