PromptMate

Overview

Privacy-first AI toolkit: mask sensitive data before pasting, enhance prompts, and manage reusable prompt snippets.

PromptMate is a privacy-first productivity extension for anyone who uses AI chat tools like ChatGPT, Claude, Gemini, or any other AI interface. 🔒 PII Masker Automatically masks emails, phone numbers, and any custom terms you define before you paste text into an AI chat. Your sensitive data never leaves your browser — masking happens entirely on-device. ✨ Prompt Enhancer Right-click any AI chat input field and select "Enhance prompt with PromptMate" to instantly rewrite your draft into a clearer, more effective prompt using Google's Gemini API. You use your own API key — your text goes directly from your browser to Google, never through our servers. 📚 Prompt Library Save and manage reusable prompts. Insert them in one click from the popup — perfect for recurring tasks, templates, or workflows. ⚙️ Allowed Sites Control exactly which domains PII masking is active on. You decide where the extension runs. 🛡️ Privacy by design No accounts. No analytics. No telemetry. Everything is stored locally in your browser. Uninstalling the extension deletes all your data. How to get started: 1. Click the PromptMate icon to open the popup 2. Add your custom PII terms in Settings 3. Optionally add a free Gemini API key from aistudio.google.com to enable prompt enhancement 4. Start pasting — your data stays yours

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Details

Version
1.0.0
Updated
May 31, 2026
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Size
28.91KiB
Languages
English (United States)
Developer
Email
hello@agenticbiz.dev
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

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