Swifka

Swifka is a native macOS application that provides read‑only monitoring of Kafka‑compatible clusters. It connects to any Kafka, Redpanda, or similar broker, allowing users to browse topics, partitions, and messages while displaying detailed metadata. Message payloads can be decoded in several formats, including UTF‑8, Hex, Base64, Protobuf, Avro, and JSON, with optional integration to a Schema Registry for automatic decoding of Confluent wire formats.

The tool offers monitoring features such as consumer‑group lag tracking, real‑time trend charts for throughput, ISR health, and broker status, as well as searchable message content via keyword, regex, or JSON‑path queries. Alerts can be configured for conditions like ISR health degradation, cluster lag, or broker latency, and are delivered through macOS desktop notifications. Additional conveniences include menu‑bar residency, Excel export of chart data, dark mode, and automatic in‑app updates.

Swifka targets developers, engineers, and on‑call personnel who need a lightweight, safe way to inspect production Kafka clusters without the risk of accidental writes. Its design emphasizes simplicity, macOS integration, and zero‑write safety, making it suitable for junior developers and teams that prefer a native desktop monitor over web‑based or Java‑centric alternatives.