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PasteGuard automatically hides names, emails, and API keys before you send prompts to AI. Your data never leaves your machine. Detects 30+ types of sensitive data across 24 languages.
PasteGuard Comparison

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Works Everywhere

Chat

ChatGPT, Claude, Gemini

Apps

Open WebUI, LibreChat

Coding Tools

Cursor, Claude Code, Copilot, Windsurf

API Integration

OpenAI SDK, Anthropic SDK, LangChain

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Two Privacy Modes

ModeHow it works
MaskReplace PII with placeholders, send to OpenAI or Anthropic, restore in response
RoutePII requests stay on your local LLM (Ollama, vLLM, llama.cpp), others go to OpenAI or Anthropic
PasteGuard runs on your servers. Personal data never leaves your infrastructure, and the LLM provider never sees real names, emails, or secrets.

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Next Steps

Quickstart

Run PasteGuard as a local proxy

Configuration

Customize detection and providers