Prompt Injector icon
Prompt Injector icon

Prompt Injector

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Customize hardcoded instructions for AI agents, append, prepend, or completely replace instructions. See the hidden text that gets sent on apps like Xcode. Force compatibility for legacy client applications.

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Cost / License

  • Freemium (Pay once)
  • Proprietary

Since

  • Since 2026

Platforms

  • Mac
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Prompt Injector information

  • Developed by

    US flagInspirationull

  • Licensing

    Proprietary and Freemium product.

  • Pricing

    One time purchase (perpetual license) that costs up to $10 + free version with limited functionality.

  • Alternatives

    4 alternatives listed

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  • Supported Languages

    • English

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AI Tools & Services, Network & Admin

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Prompt Injector was added to AlternativeTo by The Void on and this page was last updated .

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Official Links

AppStores & Other Links

Download from Mac App Store

What is Prompt Injector?

Prompt Injector is a tool to customize AI Agents and have them operate how YOU want them to.

  • Detect System default prompts & instructions, read them for yourself.
  • Replace the System default prompt entirely, or append / prepend to the prompt
  • Original GemPT functionality still available, force compatibility between providers for legacy client applications. (Gemini - OpenAI | Anthropic soon) It is recommended to append or prepend to the prompt rather than completely replacing it, due to instructions for tool use getting erased. You can also partially replace the default prompt with Prompt Injector.