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Gray Box
Capture thoughts, Search later. Remember Better.
Dump your thoughts. Let your notes organize themselves. Gray Box captures raw ideas, automatically builds a cross-linked Markdown knowledge base, and lets you chat with your own knowledge using grounded, evidence-backed answers. Local-first, graph-based, works with any LLM, no vendor lock-in, no database required, and keeps your knowledge portable forever.
I built Gray Box because I kept capturing ideas, meeting notes, project decisions, and random thoughts—but finding them later was always painful. Existing note-taking tools expected me to organize everything myself, while AI note apps often hid my data behind proprietary formats.
Gray Box takes a different approach.
• Capture anything in seconds.
• Let AI organize it into a cross-linked Markdown knowledge base automatically.
• Ask questions and get grounded answers with citations.
• Your notes stay local-first and portable — just Markdown files you own. AI can run locally (Ollama) or via your chosen provider.
A few design choices I'm particularly proud of:
📄 Plain Markdown storage (no vendor lock-in)
🔒 Immutable inbox so your original notes are never modified
🕸️ Graph-based retrieval with optional semantic search
🤖 Works with any LiteLLM-supported provider (OpenAI, Anthropic, Gemini, Ollama, and more)
🧠 Human-in-the-loop curation tools for fixing AI extraction mistakes
I'd genuinely love your feedback — especially from anyone who's tried the "capture now, structure later" approach with other tools
Thanks for checking it out! Happy to answer any questions. 🙌
Gray Box was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #33 on the daily leaderboard. Dump your thoughts. Let your notes organize themselves. Gray Box captures raw ideas, automatically builds a cross-linked Markdown knowledge base, and lets you chat with your own knowledge using grounded, evidence-backed answers. Local-first, graph-based, works with any LLM, no vendor lock-in, no database required, and keeps your knowledge portable forever.
On the analytics side, Gray Box competes within Productivity, Notes, Artificial Intelligence and GitHub — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how Gray Box performed against the three products that launched closest to it on the same day.
Who hunted Gray Box?
Gray Box was hunted by Aaryan Verma. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Gray Box including community comment highlights and product details, visit the product overview.
Aaryan Verma