Hello Product Hunt.

An API key in a log looks like any other line. Pasting that log into a chat window takes a second, and the check you meant to do is the one you skip in a hurry. PasteCloak is a small app for Mac and Windows that does that one check. It's made by Epixstore SAS in Nantes.

Press ⌘⇧V on Mac, or Ctrl+Shift+V on Windows, instead of a normal paste. It scans the clipboard on your computer, using regular expressions for known key formats and assignments like password=. If it finds something, it shows a preview with placeholders such as [OPENAI_KEY_1], and nothing is pasted until you choose: Paste Sanitized, Copy Sanitized, Paste Original or Cancel.

The limits, before anyone has to ask:

• It will miss secrets in unusual formats and sometimes flag harmless text.

• When it finds nothing, it pastes straight away with no preview, so a missed secret goes through with no warning.

• On Mac, after Paste Sanitized, your clipboard goes back to what it was, including the original secret, so a plain ⌘V pastes the original.

• On Windows, many apps use Ctrl+Shift+V for paste as plain text, and PasteCloak takes that shortcut while it runs.

• It's a closed-source app that reads your clipboard, so don't take it on trust. Neither app contains networking code of its own, and Buy a License opens in your browser. On Mac it makes no network connections of its own. It isn't sandboxed, so entitlements prove nothing: watch it with LuLu, Little Snitch or lsof.

14 days free with every feature, no account, no card. Then €19 one-time for Standard (up to 3 custom rules) or €39 for Pro (unlimited custom rules). LAUNCH makes Pro €29 until 24 November. macOS 12 or later, Windows 10 and 11 (64-bit).

One question for you: which credential format does it miss that you paste most often? Please use made-up values in any example, never a real key.