Notihub

Notihub turns web-only chat and mail services into isolated, always-connected native macOS apps. Instead of leaving them open as browser tabs — which Chrome and Safari throttle in the background, silently dropping WebSocket connections and delaying notifications — each service runs in its own persistent container.

A single global hotkey (??Space) opens a menu bar panel over whatever you're doing, so you can read and reply without switching apps, tabs, or Spaces.

Key features:

• Real macOS Notification Center integration (not a custom overlay) — respects Focus Modes and Do Not Disturb, with per-service icons
• Deep-link thread jump: clicking a notification opens the exact conversation or email, not a generic inbox
• Per-tab connection status indicator that flags a dead connection before you assume "no new messages"
• Multi-account support with fully isolated sessions (no cookie collisions)
• Regex-based notification filters (priority/allow/deny) and a scheduled quiet-hours (DND) editor
• Idle background tabs auto-sleep to free memory, reconnecting instantly when you switch back
• Menu Bar Panel or Standard Window mode, customizable global hotkey
• Works out of the box with Messenger, Zalo, Gmail, Outlook, Slack, Discord, Telegram, WhatsApp, plus any custom web app URL

Notihub is free, open source (MIT), has no telemetry, and runs no servers of its own — every service loads directly from its own site.