Say Goodbye to Monthly Fees.
Bring Your Own API Keys.
Why pay $20/month when LLM tokens are 90% cheaper? PromptLock runs client-side in your side panel, encrypting keys locally with 256-bit AES-GCM. Unlocks standard, extended, or premium capabilities with a lifetime license key.
What You Get & How It Works
Local-First Security • Pure Arbitrage Pricing • High-End Developer Tools
1. Chrome Extension App
A fully featured, client-side application running natively inside your Google Chrome Side Panel. Connects directly to AI providers without routing through third-party servers.
- ✓ Sandboxed sidebar access next to any tab
- ✓ Multi-model grouped configurations
- ✓ AES-256 local key encryption
2. Lifetime License Key
Receive a cryptographically signed Ed25519 License Token upon Stripe checkout. This unlocks all your tier capabilities permanently without relying on external databases or recurring subscription validations.
- ✓ Verified locally on-device via public key
- ✓ Zero-tracking, database-free privacy model
- ✓ Permanent on-device unlocking status
3. Bring Your Own API Keys
Plug in OpenAI, Anthropic, Gemini, DeepSeek, or Ollama. By bypassing flat monthly middleman fees, you only pay for the raw tokens you use, saving up to 90% off standard commercial AI subscriptions.
- ✓ Direct pay-as-you-go token costs
- ✓ Fully compatible with Cloudflare AI Gateway
- ✓ Unlimited concurrent connections
Choose Your Lifetime Plan
Secure Checkout Powered by Stripe • No Recurring Subs
Perfect starting tier for private, local-first custom keyring setup.
- Ad & Promo Block (No Ads)
- Single-Model Active Chat
- Native Voice Input / Speech Recognition
- Personal Prompt Library
Adds codebase uploading, multimodal support, and search capabilities.
- Everything in Standard
- Multimodal Vision Image Uploads
- Native Image Generation
- Web Search Context Module
Ultimate developer tier with Cloudflare AI Gateway & parallel multi-agent loops.
- Everything in Extended
- Split-Screen Parallel Chats
- Mid-Chat Model Swapping
- Unlimited CF AI Gateway Routes
Activation Guide
Secure Cryptographic Delivery
Purchase a Lifetime License
Select one of our lifetime tiers (Standard, Extended, Premium) and complete checkout securely powered by Stripe. You only pay once—there are absolutely no monthly recurring fees.
Generate Asymmetric Signature
Upon verification of the Stripe payment webhook, our Cloudflare licensing server signs a payload containing your licensed email and purchased tier. We use cryptographic Ed25519 signing.
Copy the Cryptographic License Token
The signed license token containing the signature is immediately displayed on your screen and sent to your email. Copy the full token string to your clipboard.
Activate Inside the Sidebar Panel
Open the PromptLock Pro extension sidebar in Chrome, navigate to the PRO tab, paste the Ed25519 license token in the input area, and click Verify Asymmetric License Key.
Local Verification (Failure Close)
Done! The extension parses the asymmetric payload, verifies the signature locally against our embedded public key, and instantly unlocks your tier features permanent on-device.
Consultation & Support
Book a Custom Extension Consultation • Technical Support