Does The Coder's Knife work offline?
Yes. The Coder's 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 Coder's Knife
Essential developer utilities — offline, forever
Code & TechKnife 01 of 50
$39
One-time purchase · Instant download30-day money-back guarantee
$39
What it does
The Coder's Knife puts five essential developer utilities into a single HTML file that works offline, forever. No npm install, no SaaS subscription, no telemetry. Just open the file and start working. Your data stays in your browser — hashes are computed locally, JSON never leaves your machine, and regex patterns are tested without sending your code to anyone's server.
LIVE DEMO — TRY IT NOW
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INCLUDED TOOLS — 8 TOTAL
\Hash Generator (SHA-256, SHA-1, SHA-512)
\JSON Formatter & Validator
\Regex Tester with Live Highlighting
\Base Converter (Bin/Oct/Dec/Hex)
\Diff Viewer
\JWT Inspector
\Base64 Encoder/Decoder
\Timestamp Converter
USER'S GUIDE
Download PDFFull documentation with detailed instructions for every tool.
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.
Sovereignty as a Service
$39. Yours. Forever.
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FREQUENTLY ASKED QUESTIONS
OTHER PRODUCTSIs The Coder's Knife a subscription?
No. The Coder's Knife is a one-time purchase of $39. No monthly fees, no renewals, no price increases.
What is included in The Coder's Knife?
The Coder's Knife bundles 8 code & tech tools into a single HTML file: Hash Generator (SHA-256, SHA-1, SHA-512), JSON Formatter & Validator, Regex Tester with Live Highlighting, Base Converter (Bin/Oct/Dec/Hex), Diff Viewer, JWT Inspector, and 2 more.
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 Coder's 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 Coder's 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.
Sovereignty as a Service