Prompt Stoplight

Traffic light that shows if your AI prompt contains sensitive data, with an anonymized version in one click. 100% local.

Prompt Stoplight checks your prompt while you type, before you send it to an AI chatbot. 🔴 Red – sensitive data: bank account numbers (IBAN), national ID numbers, credit card numbers, passwords and API keys. 🟠 Orange – personal data: names of people, company names, email addresses, phone numbers, health information and emotions. 🟢 Green – nothing found, safe to send. On orange or red you instantly get an anonymized version of your prompt. Names, companies and numbers are replaced by labels like [PERSON_1], [COMPANY_1] or [IBAN_1], so the AI still understands your question. Copy the safe version with one click. A small AI model runs inside the extension to recognize names of people and companies, even ones it has never seen before. 100% local: every check happens in your own browser. Nothing is sent, stored or collected. Available in English and Dutch. Works on the most popular AI chat websites.