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Alternatives

Products that do what PrivacyProxy Shield does

Stop leaking credentials to AI tools. Masks before sending.

  1. 1LP

    OP here. I built this because I recently caught myself almost pasting a block of logs containing AWS keys into Claude. The Problem: I need the reasoning capabilities of cloud models (GPT/Claude/Gemini), but I can't trust myself not to accidentally leak PII or secrets. The Solution: A Chrome extension that acts as a local middleware. It intercepts the prompt and runs a local BERT model (via a Python FastAPI backend) to scrub names, emails, and keys before the request leaves the browser. A few notes up front (to set expectations clearly): Everything runs 100% locally. Regex detection…

    Dec 2025 · github.com

  2. 2
    GPTGuard286

    Keep your ChatGPT conversations secure and private

    2024

  3. 3

    Privacy firewall for ChatGPT prompts

    2023

  4. 4

    Your offline personal AI assistant

    2023

  5. 5
    Memoriq130

    Your private AI memory for ChatGPT, Claude, Gemini and Grok

    Jun 2026 · memoriq.me

  6. 6
    CapeChat248

    Keep sensitive data private while still using ChatGPT

    2023

  7. 7

    100% Local PII Anonymizer for ChatGPT & LLMs.

    Dec 2025

  8. 8

    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

    2023

  9. 9

    Block prompt inject & cut token costs for AI browser agents

    Jun 2026 · github.com

  10. 10
    xPrivo141

    Open Source, Free Anonymous AI Chat - Ready to Run Locally

    Dec 2025

  11. 11

    Anonymize client docs before you paste them into AI

    Jul 2026 · promptshield.ca

  12. 12
    Tinfoil99

    AI chat and API that keeps your conversations fully private

    Apr 2026 · chat.tinfoil.sh

  13. 13

    Sanitize your AI prompts before you leak secrets.

    Dec 2025

  14. 14
    Cloak5

    Use ChatGPT without leaking your private data.

    Jan 2026

  15. 15

    Stop leaking secrets into AI chat

    13d ago · omnishield.app

  16. 16

    Stop leaking sensitive data to AI chatbots

    Feb 2026 · chromewebstore.google.com

  17. 17

    LeakLake🔒Monitors AI chats, detects leaks, and alerts you⚠️

    Dec 2025

  18. 18SC

    Hi HN, I’m the founder of Pangea. We’ve built a developer platform where you can easily add security to your code through a simple set of APIs - features like authentication, secrets management, audit logging, redaction of PII, restricting embargoed countries, known threat actor intelligence, etc. With the ChatGPT and LLM explosion, we thought of ways to reduce the risk of both the inputs and outputs from these services. Our NextJS sample app adds a security layer on top of ChatGPT with various security services that you can implement quickly. It’s basically a front end to the OpenAI API…

    2023 · github.com

  19. 19

    Protect sensitive data before sending to AI

    Feb 2026 · scrubprompt.com

  20. 20

    AI Prompts Leak Data. We Stop That.

    Apr 2026 · honestaishield.com

  21. 21PS

    What PII-Shield does: It's a K8s sidecar (or CLI tool) that pipes application logs, detects secrets using Shannon entropy (catching unknown keys like "sk-live-..." without predefined patterns), and redacts them deterministically using HMAC. Why deterministic? So that "pass123" always hashes to the same "[HIDDEN:a1b2c]", allowing QA/Devs to correlate errors without seeing the raw data. Key features: 1. JSON Integrity: It parses JSON, sanitizes values, and rebuilds it. It guarantees valid JSON output for your SIEM (ELK/Datadog). 2. Entropy Detection: Uses context-aware entropy…

    Feb 2026 · github.com

  22. 22

    Stop data leaks in ChatGPT. Browser-based DLP.

    Feb 2026 · privengy.com

  23. 23
    GitHub2

    Local sensitive data & API key blocker for ChatGPT.

    Jun 2026 · github.com

  24. 24

    Stop secrets before they escape.

    Dec 2025

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