PasteGuard masks API keys, passwords, emails, card numbers and more on your Mac's clipboard the moment you copy, so every paste into ChatGPT, Claude, Slack or a terminal is safe. An optional Apple Intelligence check on your Mac catches what rules miss. For what only you know, add custom rules, import CSV word lists or keep an Ignore list. Restore puts the real values back. No permissions, no account, nothing leaves your Mac.
I built PasteGuard after catching myself pasting a production config — database URL, credentials and all — into an AI chat.
The idea is simple: keep sensitive data out of AI chats without changing how you copy and paste.
PasteGuard checks your clipboard locally and replaces sensitive values with placeholders like [API_KEY_1] the moment you copy. So whether you paste into ChatGPT, Claude, Slack or a support ticket, the original secrets stay on your Mac.
When you need the original values back, press ⌃⌘R to restore them from the placeholders.
• Works across apps, no Accessibility permission required
• Fully local: originals stay in an encrypted vault on your Mac
• Ignore or Mark As when detection gets something wrong
• Pro: custom detection rules and CSV word lists
It's free to download. I'd love to hear what it misses, what it flags incorrectly, or what would make it more useful in your daily workflow!
About PasteGuard for Mac on Product Hunt
“Keep secrets and personal data out of AI chats”
PasteGuard for Mac launched on Product Hunt on November 4th, 2026 and earned 71 upvotes and 15 comments, placing #23 on the daily leaderboard. PasteGuard masks API keys, passwords, emails, card numbers and more on your Mac's clipboard the moment you copy, so every paste into ChatGPT, Claude, Slack or a terminal is safe. An optional Apple Intelligence check on your Mac catches what rules miss. For what only you know, add custom rules, import CSV word lists or keep an Ignore list. Restore puts the real values back. No permissions, no account, nothing leaves your Mac.
On the analytics side, PasteGuard for Mac competes within Productivity and Menu Bar Apps — topics that collectively have 677k followers on Product Hunt. The dashboard above tracks how PasteGuard for Mac performed against the three products that launched closest to it on the same day.
Who hunted PasteGuard for Mac?
PasteGuard for Mac was hunted by Nguyen Quan. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of PasteGuard for Mac including community comment highlights and product details, visit the product overview.
Nguyen Quan
Hi Product Hunt 👋
I built PasteGuard after catching myself pasting a production config — database URL, credentials and all — into an AI chat.
The idea is simple: keep sensitive data out of AI chats without changing how you copy and paste.
PasteGuard checks your clipboard locally and replaces sensitive values with placeholders like [API_KEY_1] the moment you copy. So whether you paste into ChatGPT, Claude, Slack or a support ticket, the original secrets stay on your Mac.
When you need the original values back, press ⌃⌘R to restore them from the placeholders.
• Works across apps, no Accessibility permission required
• Fully local: originals stay in an encrypted vault on your Mac
• Ignore or Mark As when detection gets something wrong
• Pro: custom detection rules and CSV word lists
It's free to download. I'd love to hear what it misses, what it flags incorrectly, or what would make it more useful in your daily workflow!