Avoid sites promising "Clumsy 0.4 V2 crack" or "pro edition." Clumsy is completely free and open-source (GPL v3). There is no paid version.
: Extract the ZIP file to any directory; no formal installation is required. Permissions : Right-click clumsy.exe and select Run as Administrator : Set a filter (e.g., inbound and udp ) to target specific traffic. Start/Stop Clumsy 0.4 V2 Download
| Module | V1 behavior | | |---------------|----------------------------------|--------------------------------------------------| | Lag (Latency) | Fixed value | Jitter simulation (± random deviation, Gaussian distribution) | | Loss | Uniform random drop | Burst loss (drop X packets every Y ms), Markov model | | Throttle | Simple rate limit | Token bucket with configurable burst size | | Duplicate | Straight copy | Reorder + duplicate (set TTL to control distance)| | Out of order | Fixed reorder depth | Dynamic reorder probability based on latency ratio | | Tamper (NEW) | – | Bit‑flip corruption (1–8 bits per packet, CRC disabled) | Avoid sites promising "Clumsy 0