AI data leak prevention
The Accidental Leak: What Happens When a Stack Trace Lands in ChatGPT
A walkthrough of how ordinary debugging habits end up exposing credentials to AI tools — and where the redact step should belong.
Read more →Local-first · no clipboard history · no account required
Paste without leaking your secrets.
Paste into AI, Slack, and support tools without leaking your secrets. Press ⌘⇧V instead of ⌘V and PasteShield scans your clipboard before the paste completes.
Free to start · No account required · No clipboard history
The problem
In an analysis of 1.6 million workers' clipboard activity, 11% of everything pasted into ChatGPT was confidential — source code and client data among the most common categories.
— Cyberhaven Labs research
What PasteShield catches
Plain-category detection for the secrets developers paste most — no vague "AI-powered" claims, just the patterns it actually looks for.
API Keys
OpenAI, Anthropic, AWS, GitHub, GitLab, and Stripe key formats.
Bearer Tokens & JWTs
Session and auth tokens, including encoded JWT payloads.
Passwords in Code
Hardcoded credentials in config files, .env dumps, and scripts.
DB Connection Strings
Postgres, MySQL, MongoDB, and Redis URIs with embedded credentials.
Private Keys
PEM and SSH private key blocks, caught before they leave your Mac.
Custom Rules
Define your own patterns for internal tokens or proprietary formats.
How PasteShield compares
A security tool, not a convenience tool.
| Capability | PasteShield | Generic clipboard manager | Enterprise DLP |
|---|---|---|---|
| Keeps a clipboard history | No, never | Yes, usually | No |
| Runs entirely on-device | Yes | Varies | No, cloud-monitored |
| Built specifically for secrets | Yes | No | Yes |
| Requires IT rollout | No | No | Yes |
Simple pricing
No subscription. Pay once for Pro if you need it.
Free
€0
Safe Paste shortcut (⌘⇧V)
Full core detector set
Up to 3 custom rules
Local processing, no account required
Pro
€29
One-time, no subscription
Unlimited custom rules
Automatic sanitization for trusted categories
Advanced, high-entropy detection
Per-app settings and rule import/export
Latest from the blog
Notes on clipboard hygiene and safer pasting, written for developers — no fear tactics, no absolutes.
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