100% on-device · zero egress

Your secrets never leave your device.

Vailra masks sensitive data in your ChatGPT & Claude prompts — on your device, before the request ever leaves your browser — then un-masks the reply in your window.

No account. No cookies. No telemetry. Works with ChatGPT & Claude.

The problem

People paste API keys, source code, and personal data into AI tools every day — and in 2025–26, extensions with hundreds of thousands of users were caught quietly harvesting those very chats. Trusting the tool isn't enough; the data shouldn't leave in the first place.

How it works

Three steps — all local, all in real time.

1

You paste

Write your prompt to ChatGPT or Claude exactly as you normally would.

2

Vailra masks it

On-device AI (Chrome's Gemini Nano, with a regex fallback) detects secrets and swaps them for synthetic placeholders before the request leaves your browser.

3

You get the real answer

The AI replies referencing the placeholders; Vailra restores your original data in your window. The AI never saw it.

See it in action

A secret gets masked on-device before the request leaves — and restored in the reply, only in your window.

Why Vailra

Built for engineers, lawyers, healthcare, and finance professionals who use AI under NDA or regulatory constraints.

🔒 Zero egress

Your prompt content and the token↔original map never leave your device. No servers, no accounts.

⚡ On-device AI

Semantic detection via Chrome's built-in Gemini Nano, with a high-precision regex engine as fallback.

🧩 API keys, PII, code & finance

Detects and masks credentials, personal data, source-code identifiers, and financial data automatically.

🛡️ Inbound defense

Strips hidden prompt-injection artifacts from AI responses before they render.

Verifiable trust. The personal edition makes no network calls of its own — no analytics, no cookies, no telemetry. Optional team analytics (enterprise) is opt-in and sends metadata only, never content.