According to AlphaMoat, as of 2026-09, the Chrome extension LocalBrain has 12 users (+9.1% MoM) — ranked #8,750 of 9,324 AI browser extensions, and #1,708 of 1,839 in Office & Collaboration.
Share memory across ChatGPT, Claude, Perplexity, Gemini and more. Import/export, analytics, remove duplicates. Local storage. LocalBrain is a professional Chrome extension that brings seamless memory management to your favorite AI platforms—ChatGPT, Claude, and Perplexity. Effortlessly capture, organize, and reuse key information from your conversations, all while keeping your data private and stored locally in your browser. Key Features: Universal AI Memory: Works across ChatGPT, Claude, and Perplexity. Automatic Memory Saving: Intelligently captures and categorizes conversations as you chat. Smart Memory Injection: Instantly suggests relevant memories for new conversations. Local Storage Only: Your data never leaves your browser—no cloud, no tracking. Modern UI: Sleek, glassmorphic design with smooth animations. Notification Management: Smart rate-limiting to prevent notification spam. Robust Error Handling: Production-ready error recovery and reporting. Privacy & Security: All data is stored locally in your browser. No cloud sync or external servers. Minimal permissions—only what’s needed to function on supported AI platforms. Supported Platforms: ChatGPT (chat.openai.com) Claude (claude.ai) Perplexity (perplexity.ai) Take control of your AI memory—boost productivity, never lose context, and keep your data private.
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.