ROS Topic Viewer

ROS Topic Viewer is an iPad-only field debugging tool for robotics engineers. Connect directly to your ROS 2 robot over Wi-Fi using rosbridge_suite WebSocket — no laptop required. Browse all available topics, inspect live raw JSON data in a scrollable tree, and monitor message rate in real time. FEATURES • Connect to any ROS 2 robot via rosbridge WebSocket (ws://) • Live connection log — see every step transparently: handshake, topic fetch, reconnect attempts, and failures • Browse and search all published topics with message type annotations • Inspect raw JSON data as a live expandable key-value tree • Real-time Hz and message count per topic • Pause to freeze data at a moment in time • Export topic snapshot as CSV and share via AirDrop, Files, or email • Auto-reconnect with exponential backoff when connection drops DESIGNED FOR FIELD ENGINEERS Onsite robot debugging without a laptop. Connect your iPad to the same Wi-Fi network as your robot, enter the rosbridge WebSocket address, and start inspecting topics immediately. No configuration, no ROS installation required on the iPad. Compatible with iPad running iPadOS 16 or later.