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AI · alternatives · 2026

24 alternatives to Serendipity

Catch and remove sensitive data before it's shared with AI

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Serendipity launched in 2024; newer entries below may have overtaken it.

  1. 1
    Sequirly▲129

    Prevent accidental data leaks while using AI tools

    Mar 2026 · sequirly.com · its alternatives →

  2. 2
    Chat4Data▲461

    Chat4Data is a Chrome extension that lets you scrape structured data from any website just by chatting with AI—no coding required. We're launching today on Product Hunt and would love your feedback!

    2025 · chat4data.ai · its alternatives →

  3. 3

    The first AI agent that can operate your browser.

    2023 · hyperwriteai.com · its alternatives →

  4. 4
    undash▲298

    Makes AI text feel more human by removing em—dashes

    2025 · chromewebstore.google.com · its alternatives →

  5. 5

    Free AI website blocker for Chrome that stops distractions in real-time. 100% private on-device processing. Block the right sites at the right time.

    Nov 2025 · tasksentry.app · its alternatives →

  6. 6

    Hello HN, I’m Kamil. The past months have been filled with news about ChatGPT, Bard, etc. Thankfully, there are some heroic attempts to bring that power to the users. I wanted to contribute to that effort with my side project, an extension for Chrome: it makes searching the history by meaning – instead of the exact words – possible. This is only a proof of concept, building on the excellent transformers.js[0], and running entirely in the browser. My goal here is to explore the possibilities unlocked by a client-side AI. I would love to have your feedback, to know which direction that project…

    2023 · getpinbot.com · its alternatives →

  7. 7

    The space for builders to think out loud.

    May 2026 · joinserendipity.co · its alternatives →

  8. 8

    Supercharge your Email, Twitter, and Web with ChatGPT

    2023 · chromewebstore.google.com · its alternatives →

  9. 9

    Enhance engagement, your AI-powered browser co-pilot

    2024 · its alternatives →

  10. 10

    Hey HN, I'm excited to share BrowserBee, a privacy-first AI assistant in your browser that allows you to run and automate tasks using your LLM of choice (currently supports Anthropic, OpenAI, Gemini, and Ollama). Short demo here: https://github.com/user-attachments/assets/209c7042-6d54-4fc... Inspired by projects like Browser Use and Playwright MCP, its main advantage is the browser extension form factor which makes it more convenient for day to day use, especially for less technical users. Its also a bit less cumbersome to use on websites that require you to be…

    2025 · github.com · its alternatives →

  11. 11

    Save & paste your AI prompts without switching tabs.

    2025 · superprompts.framer.website · its alternatives →

  12. 12

    AI reads the fine print before you click "I Agree"

    Mar 2026 · agreeguard.app · its alternatives →

  13. 13

    Leverage AI With Confidence

    2025 · its alternatives →

  14. 14

    Anonymize Prompt and Text Input to use AI at work safely

    2025 · jack-of-all-trades.dev · its alternatives →

  15. 15PA
  16. 16
    Blizzy▲88

    Your secure personal AI assistant

    2023 · blizzy.app · its alternatives →

  17. 17

    Automate Your Tasks with Unmatched Privacy

    2024 · chromewebstore.google.com · its alternatives →

  18. 18

    Browser extension helps to take website screenshots without exposing private information. Blur private information, edit website text

    2020 · datamask.tech · its alternatives →

  19. 19

    Protect sensitive data in AI prompts

    2025 · privly.app · its alternatives →

  20. 20

    Prevent sensitive data leaks in popular LLM's like ChatGPT

    2025 · aisafeguard.co.uk · its alternatives →

  21. 21

    Stop leaking sensitive data to AI chatbots

    Feb 2026 · chromewebstore.google.com · its alternatives →

  22. 22

    Your personal prompt and context library

    Dec 2025 · wigglegpt.com · its alternatives →

  23. 23

    an AI extension that can SEE, LISTEN, REMEMBER for Chrome

    2025 · chromewebstore.google.com · its alternatives →

  24. 24

    Using the new Prompt API to build a free open source privacy-first chat extension that runs on Chrome or Edge on Linux, Mac, Windows and ChromeOS

    2025 · blog.alexewerlof.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 →