Protect Your
API Keys — Automatically

Zero‑exposure API key manager.

🌐Add to Chrome - Free

✨ 60-second setup • No signup required

🔐Local AES-256 Encryption
🚫No Server Storage
🛡️Manifest V3 Compliant

How It Works - 4 Simple Steps

🔍

Detect Instantly

Paste a key anywhere — Cirklu spots keys and offers to save them securely.

🎯

Paste Smarter

See contextual paste buttons appear only when you need them.

⚡

Access Anywhere

Use Cmd+K / Ctrl+K to instantly pull up and inject saved keys.

🔗

Share with Confidence

Send encrypted links that auto-expire — no Slack leaks or stale keys.

See It In Action

# Try pasting this sample key:
sk-1234567890abcdefghijklmnop
# Cirklu will detect it and show:
💾 Save OpenAI key?
💥Hack Challenge

Security So Solid, We Bet Equity On It

Find critical bugs → earn ownership in Cirklu

🎯
Critical Bugs
RCE, data exposure, auth bypass
💎
Equity Rewards
Real ownership stakes
🛡️
Pre-Launch Security
Validate before we go public
🚀Join Challenge
💡We're that confident in our security

Features

🔍

Smart Detection

  • • Detects OpenAI, Stripe, AWS, GitHub keys
  • • Shows paste buttons on key input fields
  • • Monitors paste events for security
⚡

Quick Access

  • • Ctrl+K / ⌘K command palette
  • • Direct injection into forms
  • • One-click key usage
🔐

Local Encryption

  • • AES-256-GCM encryption
  • • Keys never leave your browser
  • • Zero server storage
🔗

Secure Sharing

  • • Encrypted share links
  • • Time-limited access
  • • View-count restrictions

Zero Leaks. Total Control.

Stop accidental leaks and stay in control of your keys — without slowing down your workflow.

🚀Install Extension Now🔒Security Details
256-bit
AES Encryption
0
Server Storage
100%
Open Source
V3
Manifest Standard