MaskMyPrompt anonymizes your ChatGPT prompts by replacing sensitive names, organizations, and locations with fictional stand-ins before sending.

MaskMyPrompt is a privacy tool that anonymizes your prompts before they are sent to ChatGPT. It replaces sensitive details — such as personal names, company information, and specific locations — with fictional stand-ins, so your real data never leaves your control.
This is useful for professionals handling client secrets, researchers protecting data, or anyone who wants to keep confidential information out of their AI conversations.
MaskMyPrompt was built by founder Mike Ushakov using Transformers.js, with the help of ChatGPT. The goal is a simple way to anonymize prompts before interacting with ChatGPT so conversations stay private.
Once masked, you can chat with ChatGPT knowing your private data stays confidential.
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