A native browser for AI agents.

Rel is a native macOS browser crafted for configurable, private Chromium sessions and deep integration with AI agents. Instead of wiring automation into a shared Chrome profile with DevTools or Playwright, Rel makes each tab a persistent, isolated session with its own browser identity, cookies, site data, cache, and network route. Assign a different proxy to every session, pause requests, clear private or shared caches, filter images, and block ads with Brave-powered network rules—then let agents capture and control the same visible browser through the CLI, versioned local RPC API, or typed Rust client.

Rel in action

Every tab is its own browser session.

Rel on macOS displaying a web page with an isolated session and live page statistics — Any siteIsolated sessionsLocal browser controls

CLI examples

Capture with Rel.

Simple capture

Open a page in its own browser session and capture the rendered HTML.

rel capture https://example.com

Proxy, session, actions

Add an authenticated proxy, create an isolated session, then reuse it for a capture with ordered browser actions.

rel proxy create \
  --alias research \
  --upstream-host proxy.example.com \
  --upstream-port 8000 \
  --username "$PROXY_USER" \
  --password "$PROXY_PASSWORD"

rel session create \
  --name Research \
  --proxy research \
  --adblock-enabled true

# Copy data.session.id from the response above.
SESSION_ID="Session12"

rel capture https://example.com \
  --session-id "$SESSION_ID" \
  --actions '[
    {
      "action": "wait-for",
      "selector": "body"
    },
    {
      "action": "click-link",
      "link": "https://iana.org/domains/example",
      "match": {
        "type": "fuzzy-link",
        "threshold": 0.9
      }
    },
    {
      "action": "wait",
      "seconds": 0.5
    }
  ]' \
  --output ./capture.html

Early access

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