Your purchase of this software is greatly appreciated to help us with support and future development!

Terms and conditions

1) Purchase with PayPal

2) Download the software

File Checksum Utility (KillerApp.jar)

3) Use our software

Install and Use instructions (Windows)

Install and Use instructions (Linux)

Begin CRC32, MD5, and SHA1 checking your computer files with our Java File Checksum Utility!