HPROF Viewer

HPROF Viewer Online is a file-based analysis tool for JVM heap dumps. It accepts standard HPROF files produced by desktop or server JVMs and computes a precise memory profile without requiring live instrumentation or agent-based profiling. It is designed for engineers who need repeatable, shareable reports from offline dumps. Conceptually, the engine parses dump records to build a heap histogram, a dominator tree, and object graphs. It surfaces a memory summary: total heap, reachable memory, and garbage-collectable space, along with top memory-consuming classes by shallow and retained size. Users can filter results by package, class name, or minimum instance count. Who benefits: backend developers, performance engineers, and site reliability engineers diagnosing OOMs, long GC pauses, or memory leaks in Java applications. Unique value comes from fast offline analysis, deterministic results, and easy integration with data exports for dashboards or CI workflows. Core features include: file upload and parsing, memory usage summary, top-k class listing, retained size calculations, dominator tree, object graph exploration, differential analysis between two dumps, and export to JSON or CSV for tooling pipelines. It is suitable for production-ready JVMs and development environments.