Avro Viewer Online

The tool enables viewing Avro schemas and decoding Avro binary data into JSON for quick validation of data contracts. It supports nested records, unions, arrays, maps, enums, and logical types, and can export decoded samples for documentation. Conceptually, users provide a schema and optional binary data; the system parses the schema, then decodes the binary blocks using the schema to produce a readable data view. This helps data engineers validate structure, types, defaults, and evolution rules, as well as debug ingestion pipelines. Unique value lies in combining schema inspection with data decoding in a single online workflow, without requiring local tooling or a full Hadoop/Spark setup. Core features include schema validation, human-readable renderings of complex types, handling of unions, and ISO-compatible representations for dates and timestamps. Use cases include validating data contracts before deployment, inspecting stored Avro records, and preparing sample data for pipelines or documentation.