Digital safety tools
Four focused utilities for everyday digital checks. Understand the output, use the right reference and keep the limits in view.
URL inspector
Separate the hostname, path and query. See what a link actually says without opening it.
Open toolTracking-link cleaner
Remove common campaign parameters while preserving other parts of a link.
Open toolPassword generator
Create a random password in your browser, with length and character controls.
Open toolFile SHA-256 checker
Calculate a file fingerprint locally and compare it with a reference hash.
Open toolUseful checks, with clear boundaries.
The tool code processes values in your browser. It does not send entered links, generated passwords or selected file bytes to NerveFilter. Ordinary page requests and third-party code remain separate, as explained in our Privacy Policy. For confidential material, use a trusted local application.
Choose the check that fits the question
A URL inspector explains structure; it cannot establish reputation. A cleaner removes selected campaign tags; it cannot make a link safe. A password generator creates random characters; it does not manage your accounts. A SHA-256 checker compares file bytes against a reference; it cannot detect malware.
Start with examples
Try the built-in fictional examples before entering your own data. Never paste a password you already use, a one-time code, a password-reset link or a private account invitation. No result is a security certificate.
Keep the explanation close
Each tool includes steps, a worked example, limitations and a link to relevant guidance. JavaScript is required for calculation, while the explanation stays readable without it.