PromptShield automatically detects and masks API keys, emails, customer PII, and financial budgets in your browser before they touch OpenAI or Anthropic servers — then de-anonymizes responses seamlessly on your screen.
Test the tokenization engine in real time. Notice how the AI provider only receives placeholders, but you read the unmasked response.
Traditional AI policies tell employees "don't use ChatGPT" — which fails. PromptShield makes AI safe to use without breaking workflows.
Before your keystrokes trigger an HTTP post, our Manifest V3 content script checks for OpenAI/AWS/GitHub keys, credit cards, emails, and custom company terms.
Secrets are swapped for semantic placeholders like [REDACTED_EMAIL_1]. Context is preserved so the LLM writes high-quality code.
When the AI streams its answer back, a DOM observer swaps placeholders back to the original values locally in your browser. You read natural text seamlessly.
Start free as an individual developer or roll out organization-wide protection across your entire engineering & ops teams.
For individual users trying out privacy safeguards on ChatGPT and Claude.
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