Skip to content

The local-first
Service Bus explorer

Built in Rust. Stays on your machine. Ships an MCP server so AI assistants can peek queues for you.

Download for Windows

v0.5.1

viewbus app showing the orders-incoming dead-letter queue with a selected message and JSON body preview

Built for the way developers actually use Service Bus.

Everything you'd want Service Bus Explorer to be, without the legacy baggage.

Fast tree browsing

Subscriptions, namespaces, queues, topics — indexed locally in SQLite. Navigation is instant, even on enterprise tenants with thousands of resources.

Fast tree browsing

Browse and act on messages

Peek active and dead-letter messages without dequeuing. Filter by session, ID, subject, or DL reason. Edit a body before resending, compose new messages, or drain a queue with a confirmed bulk action — purge, send-all-to-DL, or empty an entire DLQ.

Browse and act on messages

Spotlight search

Ctrl+I opens a system-wide fuzzy search across every indexed resource. Stays active even with viewbus closed to the tray.

Spotlight search

Built-in MCP server

Ships a Model Context Protocol server so Claude, ChatGPT, or any MCP-aware AI can list namespaces, search resources, peek queues, and fetch full messages.

viewbus-mcp
$ viewbus-mcp --list-tools
10 read-only tools · 1 opt-in write tool
get_status index state + last refresh
list_namespaces azure subscription namespaces
list_queues queues in a namespace
list_topics topics in a namespace
list_subscriptions subs under a topic
get_resource full detail for a resource
search_resources fuzzy across names + paths
count_messages active + dead-letter totals
peek_messages read without dequeuing
get_message_detail body + properties by seq no.
upsert_theme write · opt-in via settings

Built-in themes & VS Code import

Six built-in dark and light themes — including a warm Clave theme. One-click importer pulls your active VS Code theme into viewbus.

Built-in themes & VS Code import

Your data stays on your machine.

viewbus has no backend servers, sends no telemetry, and has no account system. Your Azure credentials are used directly by your machine to talk to Azure. Connection strings live in the OS keychain — Windows Credential Manager on Windows, macOS Keychain on Mac — never on disk in plain text.

Read the full privacy promise →

Heads up — macOS build isn't notarized yet

viewbus for macOS isn't notarized by Apple yet, so on first launch macOS will say it's damaged or can't be verified. You'll need to clear the quarantine flag once. Pick whichever feels easier:

Option A — Terminal (one command)

  1. Open the DMG and drag ViewBus.app into /Applications (don't run it from inside the DMG — quarantine re-applies).
  2. Open Terminal and run: 
    xattr -cr /Applications/ViewBus.app
  3. Launch from Launchpad or /Applications.

Option B — System Settings (no Terminal)

  1. Open the DMG and drag ViewBus.app into /Applications.
  2. Try to open it — macOS will block it. Dismiss the warning.
  3. Open System Settings → Privacy & Security, scroll down, and click Open Anyway next to viewbus.
  4. Confirm in the dialog that follows.

You only need to do this once per install.

Do you still want to download?