Privacy Policy

Product: Port Killer for Windows (Stream Deck plugin for Windows) · Provider: GRAMSHIFT (Tokyo, Japan) · Last updated: 2026-09-28

Summary

The plugin does not collect, send or store any data about you or your PC. It shows on your Stream Deck keys which programs are listening on the network ports you chose, and stops such a program when you ask it to with two presses. It has no account, no online service, no analytics and no telemetry, and the plugin itself makes no network requests.

What the plugin does on your PC

Where data goes

DataWhere it is processedStored by the plugin?
Key settings (label, port, list of ports)Saved by the Stream Deck app on your PC, like the settings of any other keyOnly in your Stream Deck profile on your PC.
Ports in use, program names and process IDsOn your PC, in the plugin's memoryNo. Nothing is written to disk or sent anywhere; it is gone when the plugin stops.
Technical logThe Stream Deck plugin framework writes a small log file (mainly connection errors) in the plugin's folder on your PC. The plugin does not write port lists or program names to it.On your PC only. It is not sent anywhere.
Anything sent to GRAMSHIFT servers—Nothing. The plugin has no server of its own and makes no network requests.

Purchases

The plugin is sold on the Elgato Marketplace. Purchases, payments and licenses are handled by Elgato (Corsair) and its payment provider under Elgato's own terms and privacy policy. GRAMSHIFT never receives card details. If Elgato provides us with sales records (for example the date, country and amount of a sale), we use them only for accounting and tax.

Support requests

If you contact us, we receive what you choose to send (for example your email address, your message and any screenshots). We use it only to answer you. Email to contact@gramshift.com is forwarded by our email forwarding provider (ImprovMX) to a mailbox hosted by Google (Gmail), so those providers process support emails on our behalf. Please do not send passwords or other secrets.

Our role and legal basis

The plugin works only as a tool on your own computer: GRAMSHIFT does not receive or process anything from it. For sales records and support emails, GRAMSHIFT is the controller. We rely on our legitimate interest in answering requests and on legal obligations (for example tax records). GRAMSHIFT is based in Japan, so this information is processed in Japan and by the providers named above.

Your rights

You can ask us to access, correct or delete personal information we hold about you, or object to its use, by emailing contact@gramshift.com. If you are in the EEA or the UK, you can also complain to your local data protection authority.

Retention and deletion

The plugin keeps no data of its own. Uninstalling it from the Stream Deck app removes the plugin and its log file. Support emails are kept only as long as needed to handle the request and meet legal obligations; you can ask us to delete them. Sales records are kept for up to 7 years for accounting and tax.

Changes

If the plugin ever starts to send or store data, this policy will be updated before that change is released, and the date above will change.

Contact

GRAMSHIFT · contact@gramshift.com · 1-10-8 Dogenzaka, Shibuya Dogenzaka Tokyu Bldg 2F-C, Shibuya-ku, Tokyo 150-0043, Japan