About CyberToolkit
Free security tools for developers and professionals
Our Mission
CyberToolkit exists to provide fast, private, browser-based security utilities to developers, security researchers, and anyone who needs reliable tools without the friction of accounts, rate limits, or privacy trade-offs.
Every tool on this site runs entirely in your browser. Your input is never transmitted to our servers. We built it this way not just for privacy — it is also faster, more reliable, and works offline once loaded.
The web is full of tools that require a login to hash a string. We think that is wrong. Security tools should be frictionless.
Privacy Policy
Data we collect: None from tool usage. All tool processing (hashing, encoding, password analysis, UUID generation) runs client-side in your browser. No input data is ever sent to CyberToolkit servers.
API calls: Some tools make API calls to third-party services because those operations require server-side databases:
- • IP Lookup → ip-api.com (sends the IP address being queried)
- • SSL Checker → public certificate API (sends the domain name)
- • WHOIS Lookup → rdap.org (sends the domain name)
- • CVE Search → nvd.nist.gov (sends your search term)
Cookies: We may use minimal analytics cookies (such as Google Analytics) to understand aggregate page traffic. No personally identifiable information is collected.
Advertising: We use Google AdSense for non-tracking-based ads where possible. Affiliate links are clearly disclosed.
Contact: For privacy concerns, email privacy@cybertoolkit-nu.vercel.app
Principles
Privacy First
Tool inputs stay in your browser. Period.
Performance
Client-side tools are instant. No round-trips.
Transparency
Open about what data leaves your browser.
Developer-Focused
Tools built by developers, for developers.
Tech Stack
Legal Disclaimer
CyberToolkit is provided for educational and legitimate professional use only. All tools are intended for use on systems and data that you own or have explicit authorization to test and analyze.
Do not use any tools on this site to access, test, or analyze systems, networks, or data without proper authorization. Unauthorized access to computer systems is illegal in most jurisdictions.
CyberToolkit makes no warranties about the accuracy of tool outputs and accepts no liability for their use or misuse.