🔒 100% Offline — Zero Data Upload

The Amazon FBA Tool That Runs Completely Offline — No Cloud, No Account, No Tracking

Your competitor research, pricing strategy, and product plans are valuable. Kill-or-Go never sees them. Everything runs in your browser. Nothing leaves your device. Ever.

Get Kill-or-Go — One-Time Payment → See full product page ↗
Zero data sent to any server
No account, no login required
Works without internet after download
One-time payment, permanent access

Your Research Stays Yours

Most Amazon seller tools send your data to their servers. Kill-or-Go has no servers. The validation engine runs locally in your browser — there is nothing to send data to.

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Local computation
Every calculation happens in your browser using JavaScript. No API calls, no external requests.
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Zero network traffic
After download, the tool makes no network requests of any kind. Use it with your wifi off.
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No data stored
Nothing is saved between sessions. Close the tab and the data is gone — only you ever saw it.
Comparison

Offline Tool vs. Cloud-Based Amazon Software

Both approaches have trade-offs. Here is what each means for your workflow and your data.

Cloud-Based Tools
Data sent to third-party servers on every use
Requires account creation and login
Monthly or annual subscription required
Tool disappears if you cancel or they shut down
Depends on server availability — outages affect access
Automatic data updates and live market feeds
Kill-or-Go (Offline)
All data stays in your browser — zero uploads
No account, no login, no email required
One-time payment — no ongoing fees
Downloaded file works permanently, no dependency
Works offline — use it on a plane, train, or cafe
You enter competitor data from your research tools
Who This Is For

Sellers Who Take Their Research Data Seriously

Kill-or-Go fits specific workflows — here is where it belongs in yours.

Private label sellers protecting their niche research

Your product ideas and competitor analysis represent weeks of research. An offline tool means that data never reaches a platform that could — in theory — share or analyze patterns across all users.

Sellers evaluating multiple ideas in one session

Run five product ideas through Kill-or-Go in an afternoon. No loading states, no server delays, no rate limits. The validation engine runs instantly in your browser every time.

Sellers who travel or work in unreliable internet areas

Download Kill-or-Go once. It then works on any device, in any location, without any internet connection. Flight mode, hotel wifi, or complete offline — the tool does not care.

Sellers who want tools that last without recurring costs

Subscriptions can be cancelled, prices raised, or services discontinued. A downloaded offline tool runs permanently on your machine regardless of what happens to the seller.

FAQ

Questions About Offline Amazon FBA Tools

How can a tool work offline without accessing live Amazon data?
Kill-or-Go does not pull live data from Amazon. You enter the competitor data yourself — price, review count, rating, and monthly sales estimates from your preferred research tool. Kill-or-Go then runs a structural analysis on that data entirely within your browser. The analysis engine does not need the internet — it needs your inputs.
What exactly gets downloaded when I purchase?
You receive a zip file containing four files: index.html, style.css, app.js, and README.txt. Unzip the folder anywhere on your computer, open index.html in Chrome, Edge, Firefox, or Safari, and the tool works immediately. No installation, no configuration, no admin rights required.
Does Kill-or-Go work on Mac, Windows, and Linux?
Yes. The tool runs in any modern browser — Chrome, Edge, Firefox, or Safari — on any operating system. There are no platform-specific dependencies or OS requirements of any kind.
If the tool is offline, how does it get updates?
When updates are released, they are distributed to existing customers via Gumroad at no additional cost. You download the updated zip file and replace your local copy. Your purchase covers all future versions.

Your Data Stays Private. Your Access Stays Permanent.

No server. No account. No subscription. Kill-or-Go runs in your browser, on your machine, completely offline — after a single one-time payment.

Get Kill-or-Go — Download & Own Forever →
Zero data upload No account needed Works offline One-time payment