Privacy-First Architecture

Security is not
an afterthought

Your profile never touches our servers. Your API key is encrypted locally. Data flows directly from your browser to OpenAI — we are never in the middle.

AES-256 Key Encryption No Server Storage Open Source Logic

Our Commitments

How we protect your data

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AES-256 API Key Encryption

Your OpenAI API key is encrypted using PBKDF2 + AES-256 when you set a PIN. Without a PIN, it is stored in base64 in browser local storage. We never see your key.

🧠

No Server-Side Storage

FormFill AI has no backend that stores your profile or personal data. Everything lives in your browser's local storage — we have no database of your information.

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Direct API Connection

Your data travels directly from your browser to OpenAI's servers. Our servers are never in the middle. No proxy, no storage, no logging.

👁️

Open Source Handling Logic

Our data handling code is public and auditable. Independent security researchers can verify exactly how your data is stored and processed at any time.

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No Telemetry or Tracking

We collect zero analytics about the forms you fill or the data you enter. Our business model doesn't depend on your behavioral data.

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Secure Key Management

Your OpenAI API key is stored in Chrome's local extension storage, optionally encrypted with AES-256 when you set a PIN. It is never sent to our servers.

Technical Architecture

How data flows through FormFill AI

Every layer of the stack is designed to ensure your data stays private. Here's the exact path data takes — from your profile to the filled form.

Profile data stored in browser.storage.local (your device only)
API key optionally encrypted with PBKDF2 + AES-256 (PIN required)
On fill: profile sent directly to OpenAI API from your browser
FormFill AI servers are never in the request path
AI response handled locally and injected into form fields
👤 Your Browser (Chrome) All data lives here
🔐 AES-256 Key Encryption (optional PIN) API key only
💾 browser.storage.local Encrypted blob
Direct → OpenAI API Direct connection
Form Fields Injected Local only

Privacy is the feature, not the promise

See our Studio One data handling code on GitHub, or install FormFill AI and experience it yourself.

Add to Chrome — Free