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AI · alternatives · 2026

24 alternatives to Memdex

Turn every AI conversation into reusable local memory

Memdex is a Chrome extension that automatically captures and stores conversations from ChatGPT, Claude, and Gemini in encrypted local storage on the user's laptop. It identifies reusable context from past chats and… 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

    Let every AI remember the same you.

    Jul 2026 · memmy.bot · its alternatives →

  2. 2

    Hey HN! We're Deshraj and Taranjeet. We've been building working on a startup called Mem0, building an open-source memory layer for AI apps and agents (https://news.ycombinator.com/item?id=41447317). We also kept running into our own daily frustrations with AI assistants forgetting everything between conversations. Over a weekend, we decided to hack together a Chrome extension to solve this for ourselves. The problem was simple: we were constantly re-explaining our context across platforms when switching between ChatGPT, Claude, and Perplexity. Start a coding discussion in…

    2024 · github.com · its alternatives →

  3. 3

    AI Toolbox (formerly ChatGPT Toolbox): folders, search, bulk export, and prompt chaining for ChatGPT, Claude, Gemini, and Grok. 40,000+ users. Start free.

    Jul 2026 · ai-toolbox.co · its alternatives →

  4. 4

    Use ChatGPT & GPT-4 on any website without copy-pasting

    2023 · its alternatives →

  5. 5

    Reusable AI Memory for Smarter Prompts Anywhere

    Nov 2025 · chromewebstore.google.com · its alternatives →

  6. 6

    Captures and stores your chat from various AI platforms

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

  7. 7

    Chat 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 →

  8. 8
    MemSync▲133

    Unified Memory for all of your apps

    2025 · chromewebstore.google.com · its alternatives →

  9. 9

    Persistent memory for Claude, ChatGPT & Cursor. Free.

    May 2026 · github.com · its alternatives →

  10. 10

    ChatGPT for your video library, with unlimited video context

    2025 · memories.ai · its alternatives →

  11. 11

    Build chatbots with memory using just an API

    Jan 2026 · amarsia.com · its alternatives →

  12. 12
    Baron AI▲330

    Use ChatGPT in any app, natively on Windows, Mac and Linux

    2023 · its alternatives →

  13. 13

    Hi HN, TL;DR Memex is a cross-platform desktop app for vibe coding. Think ChatGPT + Claude Code rolled into one. Why we built it: We love chat tools like Perplexity and ChatGPT. We also love coding agents, like in Cursor and Windsurf. We don’t like that web-based app builders are opinionated about tech stack and we can’t run them locally. So, we built Memex to be a chat tool + coding agent that supports any tech stack. What it can do today: Claude Code-like coding. Agentic web search / research. Pre-built templates (e.g. fullstack, iOS, python + modal, etc). Inline data analysis + viz.…

    2025 · memex.tech · its alternatives →

  14. 14

    Hey HN! We're Taranjeet and Deshraj, the founders of Mem0 (https://mem0.ai). Mem0 adds a stateful memory layer to AI applications, allowing them to remember user interactions, preferences, and context over time. This enables AI apps to deliver increasingly personalized and intelligent experiences that evolve with every interaction. There’s a demo video at https://youtu.be/VtRuBCTZL1o and a playground to try out at https://app.mem0.ai/playground. You'll need to sign up to use the playground – this helps ensure responses are more tailored to you by…

    2024 · github.com · its alternatives →

  15. 15

    One memory across OpenClaw, ChatGPT, Claude & Gemini

    Feb 2026 · maximem.ai · its alternatives →

  16. 16
    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 →

  17. 17

    Persistent, structured memory for AI Agents

    Jan 2026 · mnexium.com · its alternatives →

  18. 18

    AI memory tool that lives where you work

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

  19. 19

    Memorr remembers everything across all your AI chats

    Nov 2025 · memorr.ai · its alternatives →

  20. 20

    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 →

  21. 21CA

    Current AI chat assistants face a fundamental challenge: context management in long conversations. While current LLM apps use multiple separate conversations to bypass context limits, a truly human-like AI assistant should maintain a single, coherent conversation thread, making efficient context management critical. Although modern LLMs have longer contexts, they still suffer from the long-context problem (e.g. context rot problem) - reasoning ability decreases as context grows longer. Memory-based systems have been invented to alleviate the context rot problem, however, memory-based…

    Nov 2025 · its alternatives →

  22. 22
    Kept▲104

    Your AI chats, saved as Markdown locally with no cloud

    May 2026 · kept.work · its alternatives →

  23. 23

    OpenMemory Chrome Extension: Long-term memory for ChatGPT, Claude, Perplexity, Grok etc - mem0ai/mem0-chrome-extension

    2024 · github.com · its alternatives →

  24. 24

    Save your ChatGPT conversations in 1 click

    2023 · 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 →