Does The Security Knife work offline?
Yes. The Security Knife is a single HTML file that runs entirely in your browser. No internet connection required after download. Your data never leaves your device.
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The Security Knife
InfoSec essentials — zero dependencies, zero trust required
Code & TechKnife 03 of 50
$39
One-time purchase · Instant download30-day money-back guarantee
$39
What it does
The Security Knife packages five essential information security utilities into a single HTML file. Analyse password strength with entropy calculations, build CORS headers interactively, decode and inspect JWT tokens, generate Content Security Policy headers, and convert between encoding formats — all running locally in your browser. No data ever leaves your machine.
LIVE DEMO — TRY IT NOW
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INCLUDED TOOLS — 5 TOTAL
\Password Analyser with Entropy Meter
\CORS Header Builder
\JWT Decoder & Inspector
\CSP Generator
\Encoding Converter (Base64, Hex, URL, HTML)
DELIVERYSingle HTML fileDownload instantly after purchase
PRIVACY100% localYour data never leaves your machine
OWNERSHIPOne-time purchaseNo subscription, no recurring fees
PRO TIP
The file works in any modern browser — Chrome, Firefox, Safari, Edge. Save it to a USB drive, email it to yourself, or keep it in your cloud storage. It will work anywhere, anytime, forever.
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$39. Yours. Forever.
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OTHER PRODUCTSIs The Security Knife a subscription?
No. The Security Knife is a one-time purchase of $39. No monthly fees, no renewals, no price increases.
What is included in The Security Knife?
The Security Knife bundles 5 code & tech tools into a single HTML file: Password Analyser with Entropy Meter, CORS Header Builder, JWT Decoder & Inspector, CSP Generator, Encoding Converter (Base64, Hex, URL, HTML).
Where is my data stored?
Entirely in your browser's local storage. Nothing is uploaded, transmitted, or tracked. You can export your data as JSON at any time and import it on another device.
Which browsers and operating systems does The Security Knife support?
Any modern browser — Chrome, Firefox, Safari, Edge — on Windows, macOS, Linux, ChromeOS, iOS, or Android. The same file works everywhere.
Can I try The Security Knife before buying?
Yes. The interactive demo on this page is the full knife running in an iframe. Try every feature in your browser, no signup required.
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