The highest-performance username checking engine. 4C, 3C, Words, and custom lists — with multi-threaded speed and real-time alerts. Secure rare usernames across 10+ major social and gaming networks.
Our engine has uncovered thousands of rare, high-value usernames across all supported networks. Here's a small sample.
TQX Checker v4 is purpose-built for maximum performance and reliability.
Highly optimized, multi-threaded architecture designed for maximum throughput and low latency on every check.
Smart proxy rotation and session management to keep your engine running at 100% without triggering target network rate limits.
Check 2C, 3C, 4C, 2L, 3L, 4L, Semis, Words, Number combos, or upload your own custom list via drag and drop.
Cloud-hosted engine runs 24 hours a day, 7 days a week. Never miss a window when a rare username drops.
Webhook and Discord bot notifications the second an available username is detected. React before anyone else.
TQX Checker is now completely free. Enjoy 100,000 free checks per day that automatically reset every midnight.
Register for free in seconds. Every account is automatically credited with a limit of 100,000 daily checks.
Select your mode (4C, Words, Custom TXT), set thread count, upload your proxies and tokens.
Click start and let the engine run. Every hit is sent to your Discord webhook in real-time.
TQX Checker is now completely free to use. Secure usernames using our powerful multi-threaded engine at absolutely zero cost.
Purchase the pre-compiled executable or the full source code to run the checker infinitely on your own machine.
Join thousands of users using TQX Checker v4 to secure rare usernames and identities every day.