MQTT Browser

MQTT Browser is a fast, clean MQTT client and topic explorer for Android.

Connect to any MQTT broker and explore its topics like a file tree — built

for developers, home-automation tinkerers, and anyone working with IoT data.

FEATURES

• MQTT client & explorer — browse every topic on a broker as an interactive

tree, just like a file manager.

• Live messages — watch messages arrive in real time with per-topic message

counts.

• Retained message handling — inspect retained messages, pick the one you

want when several are available.

• Path-subscribe mode (new in v1.21) — subscribe to a single path

(/#) instead of the whole broker, plus a wildcard toggle to switch

between wildcard (#) and path-based subscriptions.

• Wildcard toggle — switch between wildcard and path subscriptions with one

tap; long-press any topic to subscribe instantly.

• TLS support — connect securely with server certificates, a custom CA

certificate, or an explicit trust-all option for test brokers.

• Clean credentials handling — username/password auth, saved connections,

and a reconnect prompt so you never lose your place.

• Fully local — no accounts, no cloud, no tracking. Your broker data stays

between your phone and your broker.

MQTT Browser talks directly to the brokers you configure — public brokers,

your home server, a broker on your local network, or an industrial MQTT

gateway. Nothing else.