100% Local & Open Source

Secure Your App While You Build. Zero Friction.

SecretShields masks sensitive data by default. When you intentionally paste a secret, we track the exposure and remind you to rotate it later.

Free forever. Zero telemetry. No network calls.

Cursor AI Chat
User: Can you connect to the database using this config?
User pasted context:
AWS_ACCESS_KEY_ID=AKIA████████████KEY1
SecretShields: 1 secret masked in clipboard.

The AI-era leakage problem. Solved.

When you move fast with AI coding assistants, you inevitably paste `.env` files, stack traces, and configurations. By operating at the OS clipboard layer, SecretShields catches secrets before they ever touch a chat input, terminal, or browser.

Omnipresent Protection

Protects Cursor chat, VS Code Copilot, web-based ChatGPT, terminal CLIs like Claude Code, and even Slack. If you can paste it, we protect it.

Air-gapped & Local

Zero network calls. No telemetry. Your secrets never leave your machine. SecretShields runs 100% locally with high-performance regex and entropy checks.

Frictionless Workflow

Need the real key? Click "Restore for 60s". We put the raw key back in your clipboard for a short window, then automatically trigger a rotation reminder.

39 Detectors. 30+ Platforms. Zero Config.

Every detector can be individually toggled via settings. Built-in allowlists, entropy checks, and structural validation keep false positives near zero.

AWS Access Keys AWS Secret Keys GitHub Tokens Stripe Keys OpenAI API Keys Anthropic API Keys Google API Keys Vercel Tokens Slack Tokens & Webhooks SendGrid Keys Shopify Tokens Twilio SIDs DigitalOcean Tokens npm Tokens PyPI Tokens HashiCorp Vault Doppler Tokens Linear API Keys Grafana Tokens New Relic Keys Heroku Tokens PlanetScale Tokens Docker Hub PATs Resend Keys Supabase Keys Netlify Tokens Appwrite Keys Cloudflare Origin CA Discord Webhooks Database URLs SSH Private Keys JWTs

Frequently Asked Questions

Why does masking persist after I uninstall?

SecretShields operates on the system clipboard. Once masked text is written, it becomes the clipboard's actual content at the OS level. Uninstalling the extension does not (and should not) restore raw secrets — that would be a security regression. Simply copy any other text to overwrite the clipboard.

Can SecretShields intercept paste in AI chat inputs?

VS Code extensions run in a sandboxed Node.js process with no DOM access. SecretShields cannot intercept paste events inside chat panels (Cursor, Copilot, Cline). Instead, it masks the clipboard before you paste — so any paste target receives the masked version automatically.

Does SecretShields make any network calls?

No. Detection, masking, and alerts are entirely local. No telemetry, no data leaves your machine, and no raw secrets are ever written to disk.

Start building securely today.

Install SecretShields for free and never worry about accidentally pasting production credentials into an AI chat again.