# Hedgehog > Personal AI assistant for macOS and Windows. Lives as a Raycast-style overlay on your desktop, ships with a Chrome extension, drives your browser through worker agents, and remembers everything in a per-workspace markdown vault on your machine. Hedgehog is a desktop application (macOS, Windows) plus a Chrome extension and a small Helper App that connects them. It is in early access (desktop 0.3.x, helper 0.5.x), with new features shipping weekly. ## What Hedgehog does - **Desktop overlay**: a Raycast-style command surface (⌘E on macOS) that floats over whatever you are doing, with full context of the active app. - **Browser companion**: a Chrome extension that reads the current tab, lets you ask questions about the page, and drives the browser through worker agents (compare prices across sites, fill forms, book travel, summarize tabs). - **Workspaces**: separate contexts (work, personal, projects) — each with its own markdown vault, memory, and tools. - **Vault memory**: plain markdown files on disk under `~/.hedgehog/`. You can open the folder, edit notes by hand, sync with git or Obsidian. Nothing is locked inside an app database. - **Image & video generation**: Pro and Premium tiers include image and short video generation from prompts. ## Pricing - **Free**: 50 AI messages total, to try the product. - **Pro**: $20 / month, 500 messages / month, image generation. - **Premium**: $200 / month, unlimited messages. - **Bring your own key (optional)**: if you have a Claude Max or Pro subscription, or an Anthropic API key, you can configure Hedgehog to call Anthropic directly from your machine — in that mode you only pay your existing Claude bill. ## AI model & privacy - Uses Anthropic Claude (Sonnet and Opus). - Default routing: requests pass through a Hedgehog proxy to Anthropic so we can meter messages and bill on Polar. Prompts are forwarded and the contents are not retained after the response returns. - Bring-your-own-key routing: requests go directly from your machine to Anthropic. Hedgehog never sees them. - Vault content (chats, notes, files) always lives locally as markdown files on the user's machine. ## Platforms - macOS (universal binary, DMG installer) - Windows (NSIS installer) - Chrome extension (Manifest V3) — requires the Helper App that runs in the background. - Linux, Safari and Firefox are not supported yet. ## Downloads - macOS desktop: https://askhedgehog.com/downloads/Hedgehog-Desktop.dmg - Windows desktop: https://askhedgehog.com/downloads/Hedgehog-Desktop.exe - Chrome extension Helper (macOS): https://askhedgehog.com/downloads/Hedgehog-Extension-Helper.dmg - Chrome extension Helper (Windows): https://askhedgehog.com/downloads/Hedgehog-Extension-Helper.exe ## Key pages - Home: https://askhedgehog.com/ - Pricing: https://askhedgehog.com/pricing - For teams (separate on-premise solution): https://askhedgehog.com/for-teams - Terms: https://askhedgehog.com/terms - Privacy: https://askhedgehog.com/privacy - Refund policy: https://askhedgehog.com/refund ## Positioning The Claude and ChatGPT desktop apps are chat windows you switch to. Hedgehog is an overlay that lives on top of whatever you are working on, like Raycast or Spotlight. It maintains separate memory vaults per workspace instead of one shared chat history, it can drive your browser through worker agents instead of only chatting, and the vault is plain markdown that you fully own. ## Roadmap (not live yet) - Connectors for Gmail, Google Calendar, Google Drive, Slack, Telegram. - Apps Runtime — declarative agents (markdown + YAML UI) that combine prompts, connectors, and schedules. ## Related - Sister product: Bnome (https://bnome.com) — AI app builder. Build, ship, and grow web apps from a chat prompt.