Free tools
MasterKit, a site by ZingoDigital, provides tools for general informational and productivity purposes. You may use them for lawful personal or commercial work, subject to these terms.
Terms of use
Use the tools.
Use good judgment.
These terms explain the basic rules for using MasterKit and its free browser-based tools.
Check important results
Tools can contain mistakes, limitations, or browser-specific behavior. Verify important calculations and decisions with an appropriate professional or reliable source. Do not rely on MasterKit as medical, legal, financial, or other professional advice.
Availability and changes
We may improve, change, suspend, or remove tools and site features at any time. The site is provided on an “as available” basis, without a guarantee that every tool will be error-free or available continuously.
Last updated: November 6, 2026