| Unit | In base unit | Value converted |
|---|
Everyday arithmetic and percentages, for quick sums.
Fit widths and heights at any ratio.
Compound interest and repayment schedules, charted.
Body mass index with healthy-range context.
Check a phrase or number as a palindrome with a character mirror map and the longest palindromic substring.
Paste a Content-Security-Policy header and get every directive split out with its source list and a verdict, plus findings for unsafe-inline beside a host allowlist, wildcard sources, a missing default-src, data: in script-src, http: next to https:, and nonces with no strict-dynamic.
Decode a Set-Cookie or Cookie header into name, value and every attribute, with Max-Age and Expires resolved to an exact date, and flags a missing Secure or HttpOnly, a SameSite=None without Secure, and a Domain wide enough to leak to subdomains.
Paste the OPTIONS request and the response headers of a CORS preflight and walk every rule the browser applies, in order, each with a pass or fail and the reason - including the wildcard origin with credentials that is invalid no matter what else the response says.
