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MaskMyPrompt
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AI Agents (412)

MaskMyPrompt Verified Tool

MaskMyPrompt is a free privacy utility for replacing sensitive entities in prompts before text is sent to an AI service.

Last Update: August 20, 2026

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Starting price Free

Tool Information

MaskMyPrompt is a free privacy utility for replacing sensitive entities in prompts before text is sent to an AI service.

Users paste a test prompt, inspect every detected entity, add manual redactions, keep the mapping secure, understand the downstream model’s policy, and never assume automated masking is complete.

The public tool is free and no paid plan was verified.

Entity masking can miss context, secrets, rare identifiers, or re-identifiable combinations. Manual review, data minimization, local policy, secure mappings, and avoiding regulated data remain essential.

F.A.Q (3)

MaskMyPrompt is a free privacy utility for replacing sensitive entities in prompts before text is sent to an AI service.

Users paste a test prompt, inspect every detected entity, add manual redactions, keep the mapping secure, understand the downstream model’s policy, and never assume automated masking is complete.

Verified pricing: Free. The public tool is free and no paid plan was verified.

Pros and Cons

Pros

  • Anonymizes prompts automatically
  • Protects sensitive information
  • User-controlled data privacy
  • Data never leaves browser
  • Uses Transformers.js technology
  • Created by ChatGPT collaboration
  • Email and Twitter support

Cons

  • No offline usage support
  • No multi-language support
  • No mobile application
  • Doesn't support non-name entities
  • Limited customization options
  • No integration with ChatGPT
  • No batch anonymization capability

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Overview

Pricing
Free

Applicable Tasks

prompt privacy gpt mask

Before you subscribe

  • Check the currency, billing period, automatic renewal, usage limits and seats at checkout — prices and promotions change.
  • App-store pricing can differ from website pricing by country, device and tax.
  • Share only authorised data, and read the provider's encryption, retention and model-training terms first.
  • AI output can be incomplete or wrong. Verify facts, citations, calculations and code before you publish or ship.
  • Commercial usage rights vary by plan, provider terms and jurisdiction.
  • None of these tools replaces a qualified professional for medical, legal or financial decisions.

Disclaimer · How we review tools

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