Dev tools · alternatives · 2026
24 alternatives to PrivacyProxy Shield
Stop leaking credentials to AI tools. Masks before sending.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
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 · its alternatives →
- 2
GPTGuard▲286Keep your ChatGPT conversations secure and private
2024 · gptguard.ai · its alternatives →
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Memoriq▲130Archive and search saved conversations from ChatGPT, Claude, Gemini, and Grok in one encrypted AI chat vault.
Jun 2026 · memoriq.me · its alternatives →
- 5
ZENCAPTCHA▲115Privacy-first bot & spam defense, GDPR compliant CAPTCHA
2023 · zencaptcha.com · its alternatives →
- 6
AI Safeguard▲14Prevent sensitive data leaks in popular LLM's like ChatGPT
2025 · aisafeguard.co.uk · its alternatives →
- 7
I built NICH after realising I couldn't use ChatGPT for my conflict research work without risking data leaks. It's a browser extension that: - Anonymises names, emails, and addresses in one click - Preserves context for AI to understand - Restores original data in AI responses - 100% browser-based (no cloud, data never leaves your device) Built it for researchers, lawyers, HR professionals or simply anyone handling confidential data who wants AI assistance without compliance nightmares. Free to use: https://www.nichtech.uk Would love feedback from the HN community!
2025 · nichtech.uk · its alternatives →
- 8
promptShield▲11Anonymize client docs before you paste them into AI
Jul 2026 · promptshield.ca · its alternatives →
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Tinfoil▲99AI chat and API that keeps your conversations fully private
Apr 2026 · chat.tinfoil.sh · its alternatives →
- 11
Sanitize your AI prompts before you leak secrets.
Dec 2025 · my-privacy-shield.netlify.app · its alternatives →
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A private and guest mode for chatGPT
2025 · chromewebstore.google.com · its alternatives →
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- 15
Stop leaking sensitive data to AI chatbots
Feb 2026 · chromewebstore.google.com · its alternatives →
- 16
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 · its alternatives →
- 17
Protect sensitive data before sending to AI
Feb 2026 · scrubprompt.com · its alternatives →
- 18
AI Prompts Leak Data. We Stop That.
Apr 2026 · honestaishield.com · its alternatives →
- 19
Gathering and crawling and scraping public shareable AI LLMs links and providing results and insights of your queries. Alerts can be set for fugure findings. HIBP but for AI chats.
Dec 2025 · leaklake.com · its alternatives →
- 20
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…
May 2026 · github.com · its alternatives →
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I kept pasting code with hardcoded API keys, database credentials, and auth tokens into ChatGPT while debugging. Copy a failing function, paste it into AI, and realise your AWS secret key or Stripe token was right there in the snippet. So I built (with some help from Claude) a simple Chrome extension that intercepts the paste, detects secrets using local regex, and replaces them with [MASKED] before they reach the chat. Originals stay in a local AES-256 encrypted vault for unmasking. No servers. No network requests. No tracking. ~41 KB, zero dependencies. Don't take my word for it: 'grep -r…
Aug 2026 · secretsanitizer.com · its alternatives →
- 23
Privengy▲2Stop data leaks in ChatGPT. Browser-based DLP.
Feb 2026 · privengy.com · its alternatives →
- 24
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →