AI · alternatives · 2026
24 alternatives to On-device Chrome extension that blocks credential leaks to LLM chats
Catch credentials and PII before pasting into ChatGPT, Claude, Gemini, and more LLM chats. Runs entirely on your device. Free, open source.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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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 →
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Typing Mind▲826Chat with AI using your API keys. Pay only for what you use. ChatGPT, Gemini, Claude, and other LLMs supported. The best chat LLM frontend UI for all AI models.
2023 · typingmind.com · its alternatives →
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New ways of breaking app-integrated LLMs . Contribute to greshake/llm-security development by creating an account on GitHub.
2023 · github.com · its alternatives →
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GPTGuard▲286Keep your ChatGPT conversations secure and private
2024 · gptguard.ai · its alternatives →
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I spent the last few days building out a nicer ChatGPT-like interface to use Mistral 7B and Llama 3 fully within a browser (no deps and installs). I’ve used the WebLLM project by MLC AI for a while to interact with LLMs in the browser when handling sensitive data but I found their UI quite lacking for serious use so I built a much better interface around WebLLM. I’ve been using it as a therapist and coach. And it’s wonderful knowing that my personal information never leaves my local computer. Should work on Desktop with Chrome or Edge. Other browsers are adding WebGPU support as well - see…
2024 · github.com · its alternatives →
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Stay compliant and redact sensitive data in ChatGPT
2023 · chromewebstore.google.com · its alternatives →
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Browser LLM demo working on JavaScript and WebGPU. WebGPU is already supported in Chrome, Safari, Firefox, iOS (v26) and Android. Demo, similar to ChatGPT https://andreinwald.github.io/browser-llm/ Code https://github.com/andreinwald/browser-llm - No need to use your OPENAI_API_KEY - its local model that runs on your device - No network requests to any API - No need to install any program - No need to download files on your device (model is cached in browser) - Site will ask before downloading large files (llm model) to browser cache - Hosted on Github…
2025 · andreinwald.github.io · its alternatives →
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Lakera▲131Secure your conversations with ChatGPT
2023 · chromewebstore.google.com · its alternatives →
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Gemini CLI▲224A simple weekend project, to check if chat conversation could be used on CLI. Uses Google Gemini's gemini-2.0-flash model. Configs will make it nicer, but I wanted to keep it simple to test and launch for now. I can add things for you :) Please give it a try!
2025 · blog.google · its alternatives →
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GPTAnywhere▲88Super Easy access to ChatGPT with a simple Chrome-Extension
2022 · chromewebstore.google.com · its alternatives →
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AI Safeguard▲14Prevent sensitive data leaks in popular LLM's like ChatGPT
2025 · aisafeguard.co.uk · its alternatives →
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Author here. I wanted to keep my conversation with #Gemini about code handy while discussing something creative with #ChatGPT and using #DeepSeek in another window. I think it's a waste to have Electron apps and so wanted to chat with LLMs on my own terms. When I discovered the llm CLI tool I really wanted to have convenient and pretty looking access to my conversations, and so I wrote gtk-llm-chat - a plugin for llm that provides an applet and a simple window to interact with LLM models. Make sure you've configure llm first (https://llm.datasette.io/en/stable/) I'd…
2025 · github.com · its alternatives →
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Claude Tuner▲14Free Chrome extension that tracks your Claude, ChatGPT (Codex), and Gemini usage in real time. Plan simulation, cost savings analysis, rate limit prediction, and team dashboard.
Jul 2026 · claudetuner.com · its alternatives →
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Chrome now includes a native on-device LLM (Gemini Nano) starting in version 138. I've been building with it since it was in origin trials, it's powerful but the official Prompt API is still a bit awkward: - Enforces sessions even for basic usage - Requires user-triggered downloads - Lacks type safety or structured error handling So I open-sourced a small TypeScript wrapper I originally built for other projects to smooth over the rough edges: github: https://github.com/kstonekuan/simple-chromium-ai npm: https://www.npmjs.com/package/simple-chromium-ai…
2025 · github.com · its alternatives →
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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 →
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Anonymize PII before sending to ChatGPT, Claude & Gemini
Mar 2026 · anonym.legal · its alternatives →
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HeimWall▲34Signal, not surveillance. See how your engineers use Cursor, Claude Code, and Copilot: catch leaked secrets, PII, and confidential data, without blocking them or reading their prompts.
Jul 2026 · heimwall.ai · its alternatives →
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Run LLM chat in your browser offline in ONE CLICK for free
2024 · chromewebstore.google.com · its alternatives →
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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 →