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Website, pricing, platforms and company facts side by side.
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| Website | opalstack.com | llmnesia.com |
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| Platforms | — | |
| Company | — | Startup from Thailand · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Opalstack yet.
LLMnesia is a Chrome extension that helps you search, rediscover and reuse your AI conversation history across tools like ChatGPT, Claude, Gemini and other major LLM platforms. As AI becomes part of everyday work, more and more valuable knowledge gets buried inside old chats: useful answers,...
What each product offers, as listed by its team.


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Overall verdict
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As answered by people managing Opalstack and LLMnesia.
LLMnesia's answer:
Most AI tools focus on creating new conversations. LLMnesia focuses on recovering the value already locked inside your existing conversations. It is lightweight, browser-based, privacy-conscious, and designed for people who use multiple AI platforms rather than just one. The goal is simple: stop repeating prompts, stop losing good answers, and make your AI history genuinely useful.
LLMnesia's answer:
LLMnesia started from a real frustration: after using AI tools intensively, the useful answers, ideas, code snippets and decisions were scattered across different platforms and hard to find again. The product was built to solve that problem directly by making AI conversation history searchable, reusable and easier to manage. It grew from a personal need into a tool for anyone who depends on LLMs every day.
LLMnesia's answer:
LLMnesia turns scattered AI chat history into a searchable personal knowledge base. Instead of losing useful answers across ChatGPT, Claude, Gemini and other LLM tools, it indexes your past conversations locally in a Chrome extension so you can search, revisit and reuse what you have already learned or created.
LLMnesia's answer:
LLMnesia is for heavy AI users who rely on LLMs for work, research, writing, coding, product building, learning or decision-making. The main audience includes founders, developers, researchers, writers, consultants, students and anyone who has valuable information buried across many AI chats.
LLMnesia's answer:
LLMnesia is built as a Chrome extension using modern web technologies, including JavaScript, browser extension APIs, local indexing and search, and integrations with major LLM web platforms. The wider product ecosystem also uses Next.js, TypeScript and Supabase for supporting web and analytics tooling.
LLMnesia's answer:
LLMnesia is still an early-stage product, so there are no major public enterprise customers to list yet. Current users are individual AI power users, builders, developers, researchers and founders.
Share your experience with using Opalstack and LLMnesia. For example, how are they different and which one is better?
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Recently used this to find chats on same subject but spread over ChatGPT, Claude, Deepseek, Perplexity. Claude Code support is also very cool.