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AI · alternatives · 2026

24 alternatives to Omnesis – A private knowledge layer for ChatGPT and other agents

A personal index that gives AI agents — and you — instant recall across your digital life. Private by design, your data on your hardware.

Omnesis is a personal indexing system that stores and organizes data from email, messages, notes, calendar, health records, and files on a user's own device. It allows AI agents and users to search and retrieve… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Always listening: never take notes again

    2024 · omi.me · its alternatives →

  2. 2

    Remember everything with your own personal AI

    2021 · personal.ai · its alternatives →

  3. 3
    AgentSea▲439

    Today we’re excited to introduce AgentSea, a private AI chat built for sensitive work. When you use closed-source AI models, your data can: – be stored – pulled into training pipelines – shared with third parties That might be fine if you’re making memes or drafting LinkedIn posts. But it becomes a serious risk when you’re pasting contracts, health info, financial data, or business secrets. That’s why we built AgentSea. In Secure Mode, all chats run on open-source models or models hosted on our own servers. Your data never leaves, is never used for training, and is never leaked. Agentsea…

    2025 · agentsea.com · its alternatives →

  4. 4

    Heap by Contentsquare is the only digital insights platform that shows everything users do on your site, revealing the "unknown unknowns" that stay invisible with other tools.

    2013 · heapanalytics.com · its alternatives →

  5. 5
    Omi▲322

    AI powered contract and vendor management

    2024 · its alternatives →

  6. 6

    Stop babysitting your AI agents

    Aug 2026 · chat.xpander.ai · its alternatives →

  7. 7
    OpenOs▲280

    ChatGpt for user, financial & marketing data analysis

    2023 · its alternatives →

  8. 8

    Your Voice-Powered Sales Agent. One URL.

    2025 · omakase.ai · its alternatives →

  9. 9
    Omnia▲345

    Step-by-step action plans to improve your AI visibility.

    Feb 2026 · useomnia.com · its alternatives →

  10. 10
    OpenHuman▲549

    An open source AI harness built with the human in mind

    May 2026 · tinyhumans.ai · its alternatives →

  11. 11

    Create your shopper AI agent with just a URL

    2025 · omakase.ai · its alternatives →

  12. 12

    Captures and stores your chat from various AI platforms

    Mar 2026 · ai-memory-beta.vercel.app · its alternatives →

  13. 13

    I keep running in the same problem of each AI app “remembers” me in its own silo. ChatGPT knows my project details, Cursor forgets them, Claude starts from zero… so I end up re-explaining myself dozens of times a day across these apps. The deeper problem 1. Not portable – context is vendor-locked; nothing travels across tools. 2. Not relational – most memory systems store only the latest fact (“sticky notes”) with no history or provenance. 3. Not yours – your AI memory is sensitive first-party data, yet you have no control over where it lives or how it’s queried. Demo video:…

    2025 · github.com · its alternatives →

  14. 14

    Hey HN! Over the past few months, I've been working on building Omni - a workplace search and chat platform that connects to apps like Google Drive/Gmail, Slack, Confluence, etc. Essentially an open-source alternative to Glean, fully self-hosted. I noticed that some orgs find Glean to be expensive and not very extensible. I wanted to build something that small to mid-size teams could run themselves, so I decided to build it all on Postgres (ParadeDB to be precise) and pgvector. No Elasticsearch, or dedicated vector databases. I figured Postgres is more than capable of handling the level…

    Mar 2026 · github.com · its alternatives →

  15. 15
    Memoriq▲130

    Archive and search saved conversations from ChatGPT, Claude, Gemini, and Grok in one encrypted AI chat vault.

    Jun 2026 · memoriq.me · its alternatives →

  16. 16
    Evvery▲66

    Everyday AI meant for everyone.

    Sep 2026 · evvery.app · its alternatives →

  17. 17

    Hi, HN! I built a proactive open-source AI necklace that transforms your conversations into summaries, proactive feedback, and insights I built this because I want to use it myself: many companies are advertising such technology but no one is shipping The app can work with or without wearables so you can try the experience without buying anything --- Update: wasn't expecting this post to get attention, so please let me know if I need any special tags like Show HN

    2024 · github.com · its alternatives →

  18. 18

    The structured context layer for AI agents. Build self-learning specialised agents that are context aware. - DrDroidLab/open-index

    Aug 2026 · github.com · its alternatives →

  19. 19
    Glia▲105

    Local-first AI memory bridge between browser chats and IDEs

    May 2026 · glia-ai.vercel.app · its alternatives →

  20. 20

    Omnichannel personalization for e-commerce businesses

    2024 · gigalogy.com · its alternatives →

  21. 21

    Hey HN, Robert from Laminar (lmnr.ai) here. We built Index - new SOTA Open Source browser agent. It reached 92% on WebVoyager with Claude 3.7 (extended thinking). o1 was used as a judge, also we manually double checked the judge. At the core is same old idea - run simple JS script in the browser to identify interactable elements -> draw bounding boxes around them on a screenshot of a browser window -> feed it to the LLM. What made Index so good: 1. We essentially created browser agent observability. We patched Playwright to record the entire browser session while the agent operates,…

    2025 · github.com · its alternatives →

  22. 22
    monolog▲89

    Chat to yourself and find anything by what you remember

    Aug 2026 · monolog.ing · its alternatives →

  23. 23

    An OKF-backed Model Context Protocol (MCP) server delivering persistent long-term memory and SQLite FTS5 search for AI agents. - fellowgeek/mcp-memory

    Aug 2026 · github.com · its alternatives →

  24. 24

    Smart AI system capable of billions of answers

    2022 · yottaanswers.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 →