LogosGuard

LogosGuard is a browser extension that redacts sensitive data from prompts before they are sent to AI tools. When a user pastes, types or uploads content, it replaces real values with placeholders such as NAME or ACCOUNT, so the AI still receives a workable prompt while the original values stay on the device. Detection and redaction run locally in the browser, and the vendor says no account or server is needed. It detects eight categories: names, email addresses, phone numbers, addresses, URLs, dates, account and customer IDs, and secrets such as API keys and passwords. It works with ChatGPT, Claude, Gemini, Copilot, Grok and Perplexity, and runs as a Chrome or Microsoft Edge extension. A desktop app for native clients and IDEs is listed as coming soon. Features include a redaction audit log and conversation alias history. It is aimed at individuals, professionals and teams who use AI for email, code or contract review and want to avoid leaking personal or confidential data. The Free plan costs $0 and allows 50 redactions and 3 file redactions per week. Pro is $5 per month, billed as $60 once a year, with unlimited redactions, CSV audit log export and email support, and includes a 7 day free trial. Enterprise is custom priced and adds SSO, SAML, SCIM, SIEM export, VPC or on premise deployment, HIPAA support and an uptime SLA.