TraceMind: Local AI & Semantic History Search

Private, on-device AI for your browser. Semantic search for history, offline page recall, and 100% local data sovereignty.

Recover Your Digital Footprint with Private, On Device AI TraceMind transforms your browser history from a chaotic list of links into a searchable, intelligent memory bank. Powered by advanced Local AI and Hybrid Search technology, TraceMind allows you to find web pages based on what you remember concepts, ideas, and vague details rather than forcing you to recall exact keywords or URLs. Designed for developers, researchers, and knowledge workers who value Data Sovereignty, TraceMind runs entirely on your device. Zero data leaves your computer. The Problem: "I know I read that..." We've all been there: You read a brilliant article last week about "optimizing React performance" or "WASM memory management," but now you can't find it. You check your history, but the title was generic like "Chapter 4 v2.0." The link is lost in the noise. Standard browser history is a graveyard of links. It relies on "exact string matching," meaning if you don't remember the exact word in the title, the page is gone forever. The Solution: Semantic Memory TraceMind solves this by indexing the actual content of every page you visit. It creates a semantic map of your browsing activity using a neural network running directly in your browser. Search by Meaning: Type "tutorial on vector databases" and find pages that discuss embeddings, even if the word "database" never appears in the title. Privacy by Design: Your browsing history is your personal intellectual property. TraceMind encrypts it locally and never uploads it to the cloud. Offline Resilience: Save and view complete copies of web pages, even if the original site goes offline or changes (Pro). Core Technical Features TraceMind is built on a "Local First" architecture that prioritizes performance, privacy, and precision. We believe in transparency without compromise. Hybrid Search Engine (RRF) Most history tools use simple text matching. TraceMind combines two powerful search technologies using Reciprocal Rank Fusion (RRF) to deliver the most relevant results: AI Semantic Search: Powered by the Xenova/all MiniLM L6 v2 model (384 dimensional embeddings), this engine understands the context and intent of your query. It runs on a dual pipeline: WebGPU (fp16) for lightning fast searches and WASM (q8) for background indexing efficiency. Full Text Search (FTS): A high performance FlexSearch engine handles exact keyword matching, ensuring that specific error codes, technical terms, or unique identifiers are never missed. Intelligent Intent Detection The search engine automatically adapts to how you type: Navigational Mode: Detects when you are looking for a specific domain or brand (e.g., "GitHub docs") and prioritizes navigational matches. Exploratory Mode: Recognizes questions and conceptual queries (e.g., "how to fix CORS error") to prioritize semantic content matches. Uncompromising Privacy & Security Local Data Sovereignty: All data is stored in a high performance IndexedDB within your browser. Verified by architecture: No browsing data is ever sent to external servers. The only external connection is a lightweight check for license validation. Enterprise Grade Encryption (Pro): Optional AES 256 GCM authenticated encryption protects your data at rest. Keys are derived using PBKDF2 SHA256 with 200,000 iterations, ensuring your history remains secure even if your device is compromised. Bloom Filter Pre check: A privacy preserving Bloom filter (100k capacity) instantly checks if a search term exists in your index before launching a full query, saving battery and CPU cycles. Smart Indexing & Extraction 3 Stage Page Readiness: To avoid indexing loading screens or empty states, TraceMind uses a sophisticated detection system that waits for the DOM to complete, mutation activity to settle, and network traffic to idle. Noise Reduction: Utilizes the robust @mozilla/readability engine to strip ads, sidebars, and clutter, storing only the valuable content you actually read. SPA Support: Native detection for Single Page Applications (SPAs) ensures that history is captured accurately even on dynamic sites like YouTube, GitHub, or Notion, where the URL changes without a page reload. New in Version 1.2.0 Chrome History Import: Jumpstart your memory base. You can now import your past 30 days (Free) or 365 days (Pro) of browsing history directly from Chrome. Note: Imported entries support title/URL search immediately; semantic search activates when you revisit the page. Offline Page Viewer (Pro): Save complete, sanitized HTML snapshots of pages. View them later in a secure sandboxed environment, completely offline. Perfect for archiving research or reading on the go. Enhanced Export: Securely backup your indexed knowledge base with AES 256 encrypted JSON exports. Select Your Tier Free Plan (Forever Free) AI Semantic Search: Full access to the hybrid search engine. Capacity: Index up to 2,000 pages and retain 30 days of history. Privacy: Full local storage and standard deduplication. Visuals: Low res visual previews of visited pages. Excluded Domains: Exclude up to 10 domains (e.g., banking sites) from indexing. Pro Plan (Power User) Unlimited Memory: Unlimited page indexing and 365 day retention. Deep Research Tools: Access to Offline Page Viewer, rich Notes, Tags (with AI suggestions), and Pinning. Visual Fidelity: Store Ultra HD (1080p) screenshots of your browsing history. Maximum Security: Unlock custom AES 256 GCM encryption for your database and backups. Analytics: Detailed charts and drill down stats on your reading habits and domain usage. FAQ Q: Does this extension send my history to OpenAI or Google? A: No. TraceMind runs a small, optimized AI model inside your browser using WebAssembly (WASM). Your data never leaves your machine. Q: Will this slow down my browser? A: No. Indexing happens only when your computer is idle or when a page is fully loaded. The extension uses an "Offscreen Document" to handle heavy processing on a separate thread, ensuring your browsing experience remains buttery smooth. Q: How do I search? A: Click the extension icon to open the search overlay. Type naturally like you're asking a friend. Permissions Transparency: history: Required to synchronize with your browser's navigation and import past data. storage: Used to save your indexed content locally in IndexedDB. tabs & scripting: Necessary to detect page readiness and extract content for indexing. offscreen: Powers the local AI model without freezing your browser UI. Reclaim your attention. Stop losing knowledge. Install TraceMind today.